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ANSI Z21.13-2017/CSA 4.9-2017

ANSI Z21.13-2017/CSA 4.9-2017 - Gas-fired low pressure steam and hot water boilers

Preface

This is the Sixth edition of ANSI Z21.13 / CSA 4.9, Gas-fired low pressure steam and hot water boilers. It supersedes the previous editions published in 2014, 2013, 2010, 2004, and 2000.

Scope

1.1
This Standard applies to newly produced gas-fired low-pressure steam and hot water boilers with gas inlet pressure ratings not exceeding 0.5 psi (3.5 kPa) and having input ratings of less than 12,500,000 Btu/hr (3 663 389 W) (see Clause 3, Definitions), hereinafter referred to as boilers*, constructed entirely of new unused parts and materials, for operation at or below the following pressures and temperatures:

    Steam heating boilers

       15 psi (103.42 kPa) steam pressure

    Hot water heating boilers

       160 psi (1.10 MPa) water pressure
       250 F (121 C) water temperature

    Hot water supply boilers

       160 psi (1.10 MPa) water pressure
       250 F (121 C) water temperature

a) for use with natural gas;

b) for use with manufactured gas;

c) for use with mixed gas;

d) for use with liquefied petroleum gases; and

e) for use with LP gas-air mixtures.

The construction of boilers for use with the above-mentioned gases is covered under Clause 4, Construction.

The performance of boilers for use with the above-mentioned gases is covered under Clause 5, Performance.

* See Clause 7.2, Scope for boilers covered in Canada that exceed the above limits in gas inlet pressure and/or input ratings.

1.2
This Standard applies to indoor boilers, of other than the direct vent type which are categorized according to vent pressure and temperature as either Category I, Category II, Category III or Category IV (see Clause 3, Definitions), and to outdoor type boilers.

1.3
This Standard also applies to direct vent boilers (see Clause 3, Definitions). A direct vent boiler anticipated by this Standard is essentially a balanced flue appliance with the air intake and vent outlet in proximity. Other designs are subjected to such additional tests as believed necessary at the discretion of the testing agency.

1.4
See Clause 7, Items unique to Canada, for the Canadian Method of Test to determine combustion efficiency for indoor boilers and the thermal efficiency for both indoor and outdoor boilers.

1.5
If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

1.6
This Standard contains SI (Metric) corresponding to the yard/pound quantities, the purpose being to allow the Standard to be used in SI (Metric) units. (Standard for Use of the International System of Units (SI): The Modern Metric System, IEEE/ASTM SI 10 or ISO 80000-1:2009 Quantities and units - Part 1: General are used as a guide in making metric conversion from yard/pound quantities.) If a value for a measurement and a corresponding value in other units is stated, the first stated value is to be regarded as the requirement. The given corresponding value may be approximate. If a value for a measurement and corresponding value in other units are both specified as a quoted marking requirement, the first stated unit, or both shall be provided.

1.7
All references to pressure throughout this Standard are to be considered gauge pressure, unless otherwise specified.

1.8
Clause 7, Items unique to Canada, contains clauses unique to, and required by, Canada.

1.9
In this Standard, shall is used to express a requirement, i.e., a provision that the user shall satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


ANSI Z83.11-2016/CSA 1.8-2016

ANSI Z83.11-2016/CSA 1.8-2016 - Gas food service equipment

Preface

This is the fourth edition of ANSI Z83.11 ò CSA 1.8, Gas food service equipment. It supersedes the previous editions published in 2006, 2002, and 1996.

Scope

1.1
This Standard applies to newly produced gas food service equipment providing coverage for ranges and unit broilers, baking and roasting ovens, counter appliances, deep fat fryers, kettles, steam cookers, steam generators, tableside cooking appliances (see Clause 3, Definitions), hereinafter referred to either (1) appliances constructed entirely of new, unused parts and materials for use in food service centers of commercial, industrial, institutional and public assembly buildings, or (2) outdoor appliances constructed entirely of new, unused parts and materials for outdoor use and/or for installation in either carts or trailers:

a) for use with natural gas;

b) for use with manufactured gas;

c) for use with mixed gas;

d) for use with propane gas;

e) for use with liquefied petroleum gases (see Clause 5.2-e);

f) for a tableside cooking appliance only, for use with butane gas;

g) for use with LP gas-air mixtures; and

h) for use with either natural, manufactured, or mixed gas and convertible (see Clause 3, Definitions) for use with either propane gas or liquefied petroleum gases.

The construction of gas food service equipment for use with the above-mentioned gases is covered under Clause 4.

The performance of gas food service equipment for use with the above-mentioned gases is covered under Clause 5.

The construction of floor-supported and built-in food service appliances for use with the above-mentioned gases is covered under Clause 4.

The performance of floor-supported and built-in food service appliances for use with the above-mentioned gases is covered under Clause 5.

1.2
Where specific type of equipment is involved, that product type (e.g., fryer) will be identified and underlined in the provision and will only apply to that product type.

1.3
This Standard also covers all electrical equipment, wiring, and accessories built in or supplied for use with an appliance. It covers only such appliances with electrical equipment, wiring, and accessories that are installed in accordance with the National Electrical Code, NFPA 70 or the Canadian Electrical Code, CSA C22.1, as applicable.

1.4
If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

1.5
All references to psi through this Standard are to be considered gauge pressure unless otherwise specified.

1.6
Outdoor appliances, carts, and trailers

a) Appliances complying with sections of this Standard which specify outdoor appliances shall be marked per Clause 4.48, Marking.

b) Appliances that are for use with a self-contained LP-gas system shall comply with Clause 4.40, Self-contained LP-gas supply systems and Clause 4.41, Enclosures for self-contained LP-gas supply systems.

c) Outdoor appliances also include appliances that are intended to be towed behind a vehicle. This Standard does not address the issues of road performance or Department of Transportation (Federal, State, Canadian, or Provincial) rules and regulations concerning trailers.

d) A manufacturer shall supply adequate documentation to a testing agency that the trailer equipped with appliances meets applicable regulations and is eligible for titling and licensing. Listing by an approval agency to this Standard does not imply that the trailer complies with the necessary codes applicable to vehicles for use on highways, roads, or streets.

e) This Standard also covers the permanent gas distribution system used in any cart or trailer that is being submitted for evaluation under this Standard.

f) This Standard is not intended for appliances that are:

    i) for use in mobile structures with walls on all four sides and a permanent roof;

    ii) listed separately for mounting on a trailer or cart;

    iii) carts or trailers that are listed without appliances.
g) Carts and trailers shall only be investigated for gas supply system construction.

1.7
These requirements cover a portable tableside cooking appliance equipped with a self-contained butane gas fuel supply with inputs not greater than 15,000 Btu/Hr. The fuel cylinder is of the non-refillable type and has a maximum capacity of more than 4 fluid ounces (118 ml) but no more than 10 fluid oz (296 ml) of butane. The maximum capacity in pounds of water is 1.08 (0.49 kg). A tableside cooking appliance may employ no more than two fuel cylinders. The fuel cylinder is removable and replaceable in normal use. The butane fuel cylinder shall comply with DOT 2P or 2Q requirements and be listed to the Standard For Non-refillable (Disposable) Type Metal Container Assemblies For Butane, UL 147B. These portable tableside cooking appliances are for use by commercial restaurants and may be used indoors, outdoors, or both. They are not for household use.

1.8
A tableside cooking appliance may employ a low pressure gas delivery system or may incorporate a delivery system operating directly from the self-contained tank supply.

1.9
Annex A contains items that are unique to the United States.

1.10
Annex B contains items that are unique to Canada.

1.11
Clause 2 contains a list of standards specifically referenced in this Standard, and sources from which these reference standards may be obtained.

1.12
Special construction provisions applicable to an appliance convertible for use with natural gas and liquefied petroleum gases are outlined under Clauses 4.9.3, 4.14.1, and 4.48.3-h(3).

1.13
Special construction provisions applicable to an appliance designed for use with an optional listed conversion kit are outlined under Annex C, (Optional) Provisions for listed gas appliance conversion kits.

1.14
In this Standard, shall is used to express a requirement, i.e., a provision that the user shall satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


CSA B45.5-2017/IAPMO Z124-2017

CSA B45.5-17/IAPMO Z124-2017 - Plastic plumbing fixtures

Preface

This is the second edition of CSA B45.5/IAPMO Z124, Plastic plumbing fixtures. It supersedes the previous edition published in 2011.

This Standard replaces

a) CAN/CSA-B45.5-02, Plastic plumbing fixtures;

b) IAPMO/ANSI Z124.1.2-2005, Plastic Bathtub and Shower Units;

c) IAPMO/ANSI Z124.3-2005, Plastic Lavatories;

d) IAPMO/ANSI Z124.4-2006, Plastic Water Closet Bowls and Tanks;

e) IAPMO/ANSI Z124.6-2007, Plastic Sinks; and

f) IAPMO/ANSI Z124.9-2004, Plastic Urinal Fixtures.

Scope

1.1
This Standard covers plastic plumbing fixtures and specifies requirements for materials, construction, performance, testing, and markings.

1.2
This Standard covers the following plumbing fixtures:

a) bathtubs and combination tub/showers;

b) lavatories;

c) shower bases and shower stalls;

d) sinks:

    i) bar sinks;

    ii) kitchen sinks;

    iii) laundry sinks; and

    iv) service sinks;
e) urinals; and

f) water closets.

1.3
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.4
SI units are the units of record in Canada. In this Standard, the inch/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.

All references to gallons are to U.S. gallons.

For information on the conversion criteria used in this Standard, see Annex A.


CSA Z96-2015

Z96-15 - High-visibility safety apparel

Preface

This is the third edition of CSA Z96, High-visibility safety apparel. It supersedes the previous editions published in 2009 and 2002. This edition incorporates advice on selection, use, and care of high-visibility safety material taken from the CSA Z96.1 Guideline (see Annex A). It is designed to be in technical harmony with ANSI/ISEA 107 and ISO 20471.

The focus of this Standard is on the performance of retroreflective and background materials incorporated into garments intended to provide the wearer with increased conspicuity under both wellilluminated and low-light or dark work environmental conditions. It sets out levels of retroreflective performance (i.e., light reflected from vehicle headlights as viewed by the vehicle operator), the colours and luminosity of background materials, and the human body coverage of the high-visibility components. Three classes of garments have been defined based on body coverage of bright or fluorescent-coloured materials, and two levels of performance have been specified for retroreflective materials. In addition, special allowances have been made for garments that are primarily intended to provide flame protection.

Note: The criteria on special allowances for flame-protective apparel have been moved from Clause 7 in the previous edition to Clause 4.4 in this edition.

This Standard recommends that a hazard assessment be carried out on each job to determine the risk to workers of being struck by moving vehicles and the environmental conditions under which work is performed. For this purpose, Annex A provides advice for the application of high-visibility safety apparel (HVSA) to specific risk categories and job types. This guidance material recognizes that the first line of defence against personal injury accidents is to control the design of the workplace and the exposure of workers to moving vehicles (e.g., through the use of physical barriers). Improved conspicuity of workers through the use of HVSA is a second line of defence, providing a greater cushion of warning to vehicle operators so that they might avoid endangering workers on foot.

As an aid to users of this Standard, examples of compliant apparel designs are shown in Annex B. Purchasers of HVSA should seek proof that the materials used and the design of the garment meet the requirements of this Standard. As an aid to this process, examples of manufacturersÆ compliance self-declaration forms have been added in Annex C.

Scope

1.1
This Standard specifies requirements for occupational apparel that is

a) capable of signalling the userÆs presence visually; and

b) intended to provide the user with conspicuity in hazardous situations under any light conditions and under illumination by vehicle headlights.

1.2
Performance requirements are included for colour, retroreflection, and minimum areas, as well as for the configuration of the materials. Performance requirements are also provided for the physical properties of background materials used in the construction of high-visibility safety apparel (referred to as HVSA in this Standard). Test methods are provided in the Standard to ensure that a minimum level of visibility is maintained when garments are subjected to ongoing care procedures.

1.3
This Standard provides performance requirements for conspicuous materials to be used in HVSA and specifies classes of garments, minimum areas, and placement of these materials.

Note: Conspicuity is enhanced by high contrast between clothing and the work environment against which it is seen.

1.4
This Standard specifies minimum amounts of retroreflective materials, together with colour and requirements for placement of materials, for apparel used to enhance the visibility and safety of workers.

Categories of high-visibility garments are identified and appropriate markings for apparel are recommended.

1.5
The values given in SI units are the units of record for the purposes of this Standard. Where values are given in parentheses, they are for information and comparison only.

1.6
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


ASME A112.18.2-2015/CSA B125.2-2015

ASME A112.18.2-2015/CSA B125.2-15 - Plumbing waste fittings

Preface

This is the third edition of ASME A112.18.2/CSA B125.2, Plumbing waste fittings. It supersedes the previous edition, published in 2011.

Together with ASME A112.18.1/CSA B125.1, Plumbing supply fittings, CSA B125.3, Plumbing fittings, and ASME A112.18.6/CSA B125.6, Flexible water connectors, this Standard forms a series to cover plumbing fittings.

Scope

1.1
This Standard covers plumbing waste fittings of sizes NPS-2 and smaller.

1.2
This Standard does not cover

(a) plumbing supply fittings, which are covered by ASME A112.18.1/CSA B125.1;

(b) other devices (e.g., temperature-actuated in-line mixing valves), which are covered by CSA B125.3 or other plumbing product standards; and

(c) flexible water connectors under continuous pressure, which are covered by ASME A112.18.6/CSA B125.6.

1.3
This Standard does not cover pipes and tubes or pipe and tube fittings that are downstream of the trap.

1.4
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

1.5
SI units are the units of record in Canada. In this Standard, the inch/pound units are shown in parentheses.

The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.

All references to gallons are to U.S. gallons.

For information on the conversion criteria used in this Standard, see Annex A.


ASME A112.19.2-2013/CSA B45.1-2013

ASME A112.19.2-2013/CSA B45.1-13 - Ceramic plumbing fixtures

Preface

This is the second edition of ASME A112.19.2/CSA B45.1, Ceramic plumbing fixtures.

It supersedes the previous edition published in 2008.This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

Scope

1.1
This Standard covers vitreous and non-vitreous china plumbing fixtures and specifies requirements for materials, construction, performance, testing, and markings. This Standard's performance requirements and test procedures apply to all types of water closets and urinals that discharge into gravity drainage systems in permanent buildings and structures, independent of occupancy.

1.2
This Standard covers the following plumbing fixtures:
(a) bathtubs;
(b) bidets;
(c) drinking fountains;
(d) fixtures for institutional applications;
(e) lavatories;
(f) shower bases;
(g) sinks:
   (i) laboratory sinks;
   (ii) laundry sinks;
   (iii) service sinks;
   (iv) utility sinks;
   (v) kitchen sinks; and
   (vi) clinic sinks;
(h) urinals; and
(i) water closets.

1.3
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; may is used to express an option or that which is permissible within the limits of the standard; and can is used to express possibility or capability.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.4
SI units are the units of record in Canada. In this Standard, the yard/pound units are shown in parentheses. The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.

All references to gallons are to U.S. gallons.

For information on the unit conversion criteria used in this Standard, see Annex B.


CSA B149.6-2015

ANSI/CSA-B149.6-15 - Code for digester gas, landfill gas, and biogas generation and utilization

Preface

This is the first edition of bi-national ANSI/CSA B149.6, Code for digester gas, landfill gas, and biogas generation and utilization.

This Code replaces the CSA B149.6-11, Code for Digester Gas and Landfill Gas Installations.

Below are a few of the major changes:

  • Part III was created to address Digester Gas System for Renewable Energy (agricultural type biogas systems)

  • Several Definitions were added; a few were changed.

  • The requirements for the controls for Boilers, Waste Gas Burners, Engines, and Incinerators were taken out of the main text of the code and relocated to an Annex.

  • A requirement was modified to ensure that a waste gas burner has a pilot fuel (Natural Gas or Propane only, and not Biogas) that is reliable and is not just sparking the raw main gas.

  • A requirement was added indicating that Manometers must always reliably indicate the system pressures, especially during power outages, for plant personnel accessing gas rooms and for trouble shooting purposes etc.

  • A requirement was expanded to ensure that a liquid filled manometer, which does not require external power, is only used.

  • Incinerator Controls have been removed from the body of the code and put into Annexes, which can be adopted by the Authority Having Jurisdiction (AHJ), if they so wish.

  • Controls for Ventilation and Combustion Air have been removed from the body of the code and put into Annexes, which can be adopted by the AHJ, if they so wish.

  • Requirements for compliance with piping design codes have been updated to include Canadian and American standards.

  • Requirements for compliance underground piping have been updated to include Canadian and American standards.

  • The previous edition required instruments to measure the composition of the landfill gas for an explosive mixture but did not specify what to do when it occurred. The system is now required to shutdown when the methane in the landfill gas is between 2.5% and 25% by volume.

  • Hazardous areas requirements have been updated to include Canadian and American standards.
This Code was prepared by the Technical Committee on Biogas Generation and Utilization (B149.6), under the jurisdiction of the Strategic Steering Committee on Fuel- Burning Equipment, and has been formally approved by the Technical Committee. This Code has also been formally approved by the Interprovincial Gas Advisory Council and the American National Standards Institute.

In this 2015 edition, major changes and/or additions have been made to the 2011 edition being replaced.

The CSA B149.6 Code Committee, which is responsible for preparing this Code, consists of members of the provincial gas inspection authorities, biogas and waste management entities, certification organizations, and representatives from the Canadian and US federal government . This Code has been formally approved by the CSA B149.6 Technical Committee on Biogas Generation and Utilization Code, by the Interprovincial Gas Advisory Council, and American National Standards Institute.

Scope

1.1 General

1.1.1
This Code applies to the installation of systems for the production, handling, storage, and utilization of digester gas in newly constructed wastewater treatment plants, as well as additions to, and the upgrading of, existing systems.

1.1.2
This Code applies to the installation of systems for the production, handling, and utilization of landfill gas in newly constructed landfill gas systems, as well as additions to, and the upgrading of, existing systems and temporary systems.

1.1.3
This Code applies to the installation of systems for the production, handling, storage, and utilization of biogas in newly constructed biogas systems.

1.1.4
This Code applies to piping systems in which the maximum operating pressures for piping used in digester systems, landfill gas systems, or biogas systems do not exceed 860 kPa for piping installed outdoors or 450 kPa for piping installed indoors.

1.1.5
This Code applies to the safety aspects of the operation and maintenance for handling, storage, and utilization of digester gas in wastewater treatment plants and landfill gas at landfill sites or biogas in biogas systems.

Note: This Code does not apply to substrate storage, long-term digestate storage, or pilot scale and research digesters in biogas systems.

1.1.6
This Code applies to existing digester gas and landfill gas systems where, in the opinion of the authority having jurisdiction, a hazard or potential hazard exists.

1.1.7
Within the scope of Clauses 1.1.1 to 1.1.5, there may be provisions not covered in this Code, in which case the applicable provisions of the authority having jurisdiction are to apply.

1.1.8
Renewable natural gas is excluded from this code.

1.2 Scope of each Clause of this Code

1.2.1 General

Each Clause of this Code shall be used with other applicable Clauses.

1.2.2 Clause 1 - Scope

Clause 1 contains the scope of this Code.

1.2.3 Clause 2 - Reference publications

Clause 2 contains the reference publications used in this Code.

1.2.4 Clause 3 - Definitions and abbreviations

Throughout this Code certain words appear in bold italic type. These are the words which for the purpose of this Code have been defined to ensure understanding of their intended meaning.

1.2.5 Clause 4 - General requirements for digester gas systems

Clause 4 contains general requirements for appliances, accessories, components, and equipment, quality of work, personnel qualifications, control of sources of ignition, compliance with other codes, and prohibited practices.

1.2.6 Clause 5 - Installation requirements for appliances and equipment on digester gas systems

Clause 5 contains basic requirements pertaining to the installation of appliances and equipment with respect to their suitability for use, connections, clearances, accessibility, etc.

1.2.7 Clause 6 - Installation requirements for specific types of appliances and equipment on digester gas systems

Clause 6 contains minimum requirements for compressors, boilers, waste gas burners, stationary gas engines, and incinerators.

1.2.8 Clause 7 - Air for combustion, venting, and ventilation in digester gas systems

Clause 7 contains minimum requirements for the air to be used for combustion, venting, and ventilation of appliances and equipment.

1.2.9 Clause 8 - Piping and tubing systems and fittings in digester gas systems

Clause 8 contains minimum requirements for the material, size, pressure, location, practices, protection, purging, and identification of piping and tubing systems and fittings.

1.2.10 Clause 9 - Digesters and gas storage tanks Clause 9 contains requirements for the tanks used in the generation and storage of digester gas.

1.2.11 Clause 10 - Building and building services for digester gas systems

Clause 10 contains requirements for compressor rooms, boiler rooms, hazardous areas, and combustible gas detection equipment.

1.2.12 Clause 11 - Testing hazardous areas and digester gas systems

Clause 11 contains requirements for testing digester tank roofs and piping systems.

1.2.13 Clause 12 - Electrical requirements for digester gas systems

Clause 12 contains requirements for the safety electrical circuits for equipment utilizing digester gas.

1.2.14 Clause 13 - Operation and maintenance of digester gas systems

Clause 13 contains requirements for the operation and maintenance procedures affecting the safety of digester systems.

1.2.15 Clause 14 - General requirements for landfill gas systems

Clause 14 contains general requirements for appliances, accessories, components, and equipment, quality of work, personnel qualifications, control of sources of ignition, compliance with other codes, and prohibited practices.

1.2.16 Clause 15 - Installation requirements for appliances and equipment on landfill gas systems

Clause 15 contains basic requirements pertaining to the installation of appliances and equipment with respect to their suitability for use, connections, clearances, accessibility, etc.

1.2.17 Clause 16 - Installation requirements for specific types of appliances and equipment on landfill gas systems

Clause 16 contains minimum requirements for blowers, boilers, waste gas burners, stationary gas engines, and incinerators.

1.2.18 Clause 17 - Air for combustion, venting, and ventilation in landfill gas systems

Clause 17 contains minimum requirements for the air to be used for combustion, venting, and ventilation of appliances and equipment.

1.2.19 Clause 18 - Piping and tubing systems and fittings in landfill gas systems

Clause 18 contains minimum requirements for the material, size, pressure, location, practices, protection, purging, and identification of piping and tubing systems and fittings.

1.2.20 Clause 19 - Building and building services for landfill gas systems

Clause 19 contains requirements for blower rooms, boiler rooms, hazardous areas, and combustible gas detection equipment.

1.2.21 Clause 20 - Testing hazardous areas and landfill gas systems Clause 20 contains requirements for testing piping systems.

1.2.22 Clause 21 - Electrical requirements for landfill gas systems Clause 21 contains requirements for the safety electrical circuits for equipment utilizing landfill gas.

1.2.23 Clause 22 - Operation and maintenance of landfill gas systems

Clause 22 contains requirements for the operation and maintenance procedures affecting the safety of landfill gas systems.

1.2.24 Clause 23 - General requirements for biogas systems

Clause 23 contains general requirements for appliances, accessories, components, and equipment, quality of work, personnel qualifications, control of sources of ignition, compliance with other codes, and prohibited practices.

1.2.25 Clause 24 - Installation requirements for appliances and equipment on biogas systems

Clause 24 contains basic requirements pertaining to the installation of appliances and equipment with respect to their suitability for use, connections, clearances, accessibility, etc.

1.2.26 Clause 25 - Installation requirements for specific types of appliances and equipment on biogas systems

Clause 25 contains minimum requirements for blowers, boilers, waste gas burners, stationary gas engines, and incinerators.

1.2.27 Clause 26 - Air for combustion, venting, and ventilation in digester systems

Clause 26 contains minimum requirements for the air to be used for combustion, venting, and ventilation of appliances and equipment.

1.2.28 Clause 27 - Piping and tubing systems and fittings in biogas systems

Clause 27 contains minimum requirements for the material, size, pressure, location, practices, protection, purging, and identification of piping and tubing systems and fittings.

1.2.29 Clause 28 - Digesters and gas storage tanks

Clause 28 contains requirements for the tanks used in the generation and storage of digester gas.

1.2.30 Clause 29 - Building and building services for biogas systems

Clause 29 contains requirements for blower rooms, boiler rooms, hazardous areas, and combustible gas detection equipment.

1.2.31 Clause 30 - Testing hazardous areas and biogas systems

Clause 30 contains requirements for testing piping systems.

1.2.32 Clause 31 - Electrical requirements for biogas systems

Clause 31 contains requirements for the safety electrical circuits for equipment utilizing landfill gas.

1.2.33 Clause 32 - Operation and maintenance of biogas systems

Clause 32 contains requirements for the operation and maintenance procedures affecting the safety of biogas systems.

1.3 Terminology

In this Code, unless approved otherwise by the authority having jurisdiction, shall indicates a mandatory requirement; should indicates a recommendation or that which is advised but not mandatory; and may indicates an advisory or optional statement.

Notes to the text do not include mandatory or alternative requirements. The purpose of a note is to separate from the text explanatory or informative material that is not properly a part of this Code.

Notes to figures and tables, however, are considered part of the figure or table and may be written as mandatory requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


CSA B51-2014

B51-14 - Boiler, pressure vessel, and pressure piping code

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Preface

This is the eighteenth edition of CSA B51, Boiler, pressure vessel, and pressure piping code. It supersedes the previous editions published in 2009, 2003, 1997, 1995, 1991, 1986, 1981, 1975, 1972, 1969, 1965, 1960, 1957, 1955, 1951, 1945, and 1939.

In keeping with CSA's goal of harmonizing its standards with those of other countries to the greatest extent possible, CSA's Technical Committee on Boilers and Pressure Vessels and its Subcommittees have, in the course of developing this Standard, worked closely with the National Board of Boiler and Pressure Vessel Inspectors in the United States and with the American Society of Mechanical Engineers (ASME) committees responsible for producing the National Board Inspection Code and ASME's Boiler and Pressure Vessel Code.

There are three parts to this Standard:

Part 1 contains requirements for boilers, pressure vessels, pressure piping, and fittings. It is intended mainly to fulfill two objectives: first, to promote safe design, construction, installation, operation, inspection, testing, and repair practices, and second, to facilitate adoption of uniform requirements by Canadian jurisdictions.

Part 2 contains requirements for high-pressure cylinders for the on-board storage of natural gas, blends of natural gas and hydrogen (hydrogen blends), and hydrogen as fuels for automotive vehicles. It has been harmonized with International Organization for Standardization (ISO) Standard 11439:2013, Gas cylinders - High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles. In addition, the CSA Subcommittee responsible for developing Part 2 has consulted with the American National Standards Institute (ANSI) committee responsible for developing ANSI Standard NGV 2-2007, Compressed Natural Gas Vehicle Fuel Containers, and the draft American National Standard/CSA Standard for Compressed Hydrogen Gas Vehicle (HGV) Fuel Containers. The members of these two committees are dedicated to harmonizing their standards as far as circumstances allow.

Part 3 contains requirements for compressed natural gas and hydrogen refuelling station pressure piping systems and ground storage vessels. These requirements have been allotted a separate part of the Standard to emphasize the differences between them and the requirements in Part 1, thereby facilitating their application.

This Standard has undergone substantial technical and editorial revisions since the previous edition in 2009. Significant changes to Part 1 include the following:

(a) The following definitions have been added to Clause 3:

     (i) air heater coil;

     (ii) historical steam boiler;

     (iii) owner;

     (iv) pressure relief device (PRD); and

     (v) thermal expansion relief valve.

(b) General requirements: Clauses 4.1.1, 4.1.4, 4.2.4, 4.2.8, 4.6.5, 4.7.1, 4.7.2 Note 1, 4.8.2, 4.8.3, 4.9.3 Note, and 4.10 have been updated, and Clauses 4.1.9, 4.1.10, 4.2.5, and 4.2.6 have been added.

(c) Boilers and related components: Clauses 6.2.1 and 6.7 have been updated, and Clauses 6.2.2 and 6.5.1 Note 3 have been added.

(d) Pressure vessels - applicable codes and standards: Clauses 7.1.2 and 7.1.4 have been added.

(e) Piping and fittings: Clause 8.1(c) has been updated.

(f) Repairs and alterations: Clause 11.5 has been added.

(g) Pressure relief devices: Clause 12 has been added.

(h) In-service inspection: Clause 13 has been added.

(i) Categories of fittings: Table 1 Note 2 has been updated.

(j) Maximum servicing intervals: Table 5 has been added.

(k) The sample forms in Annex D have been updated to include cast aluminum.

(l) Requirements for a crush test for manifold vessels have been added to Annex G (Clause G.3.7).

(m) Provisions applicable to overpressure protection devices have been revised (Annex H).

(n) Requirements for historical boilers have been added (Annex I).

(o) Requirements regarding the use of finite elements analysis (FEA) to support a pressure equipment design submission have been added (Annex J).

The users of this Standard should note that it is a recommendatory document only and does not have the force of law except where it has been officially adopted by a Canadian jurisdiction. Users should also note that adoption does not necessarily mean that the Standard has been adopted unchanged. For example, a jurisdiction may decide to make an informative annex normative.

In addition, owners and users of cylinders designed to the requirements of Part 2 should note that the safe operation of such cylinders requires, first, compliance with the service conditions specified by the manufacturer, and second, use of the cylinders only during the service life specified by the manufacturer. Each cylinder is marked with an expiry date, and owners and users are responsible for ensuring that a cylinder is not used after that date.

The Technical Committee intends to meet periodically to review this Standard and, if necessary, to revise it to meet changing conditions and maintain uniformity of practice throughout Canada.

The Technical Committee supports the use of the National Board Inspection Code. It is the responsibility of the user of this standard to be aware that applicable local regulations can take precedence over the requirements of that Code.

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B51-14, Part 1 - General requirements for boilers, pressure vessels, and pressure piping

Scope

1.1
Except as indicated in Clause 1.2, Part 1 of this Standard applies to all boilers, pressure vessels, pressure piping, and fittings, as provided for by the Act (as defined in Clause 3) and identified in Part 1 of this Standard.

Notes:

(1) It is possible that the size limitations specified in provincial or territorial statutes or regulations will differ from those specified in Part 1 of this Standard. The applicable regulatory authority should be consulted.

(2) The pressures specified in Part 1 of this Standard are gauge pressures above atmospheric pressure.

(3) This Standard applies to all boilers, pressure vessels, pressure piping, and fittings installed subsequent to its adoption.

1.2
Requirements for compressed natural gas cylinders and refuelling station pressure piping systems and containers are covered in Parts 2 and 3 of this Standard.

1.3
This Standard does not apply to

(a) pressure-retaining components in hydraulic elevators;

(b) pressure-containment devices for gas-filled switchgear and controlgear; and

(c) pressure vessels for the transportation of dangerous goods regulated by Transport Canada.

1.4
Where a clause in Part 1 of this Standard is at variance with a code or standard referenced in Part 1 of this Standard, the requirements of Part 1 of this Standard govern.

1.5
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

1.6
The values given in SI (metric) units are the standard. The values given in parentheses are for information only. Nominal pipe sizes are expressed in non-dimensional terms.

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B51-14, Part 2 - High-pressure cylinders for the on-board storage of natural gas and hydrogen as fuels for automotive vehicles

0 Introduction

Part 2 of this Standard concerns high-pressure cylinders for the on-board storage of natural gas, blends of natural gas and hydrogen (hydrogen blends), and hydrogen as fuels for automotive vehicles. The use of gas cylinders is governed by the Act. Users and manufacturers should note the need to apply to the applicable regulatory authorities for approval of gas cylinders.

Scope

1.1
Part 2 of this Standard specifies minimum requirements for serially produced lightweight refillable gas cylinders, both original equipment and conversions, having a water capacity exceeding 20 L (0.71 ft3) but not exceeding 1000 L (35.3 ft3). Part 2 of this Standard applies only to cylinders for the on-board storage of high-pressure compressed natural gas and/or compressed hydrogen as fuels for automotive vehicles to which the cylinders are to be fixed. Cylinders may be of any material (steel, aluminum, or non-metallic) and constructed in accordance with any design or method of manufacture suitable for the specified service conditions.

1.2
The cylinders covered by Part 2 of this Standard are designated as follows:

(a) Type 1 - metal;

(b) Type 2 - metal liner reinforced with resin-impregnated continuous filament (hoop-wrapped);

(c) Type 3 - metal liner reinforced with resin-impregnated continuous filament (fully wrapped); and

(d) Type 4 - non-metallic liner with resin-impregnated continuous filament (all-composite).

1.3
The service conditions to which the cylinders are subjected are specified in Clause 4. Part 2 of this Standard is based on a working pressure settled at 15 ¦C (59¦F), with a maximum filling pressure of 1.25 times the working pressure.

The service life of a cylinder is defined by the manufacturer and can vary with different applications. This Standard's definition of service life is based on filling a cylinder 750 times a year. The maximum service life of Type 2, Type 3, and Type 4 cylinders is 20 years. For all cylinders, a safe life design principle is used.

For metal and metal-lined cylinders, the cylinder life is based on the rate of fatigue crack growth. Ultrasonic or equivalent inspection of each cylinder or liner is necessary to ensure that there are no flaws that exceed the maximum allowable size determined by fracture mechanics. This approach optimizes the design and manufacture of lightweight cylinders for natural gas vehicle service.

For all-composite cylinders with non-metallic non-load-bearing liners, safe life is ensured by appropriate design methods, design qualification testing, and manufacturing controls.

1.4
Part 2 of this Standard does not cover Type 1 or Type 2 welded metal cylinders or liners.

1.5
Where a clause in Part 2 of this Standard is at variance with codes or standards referenced in Part 2 of this Standard, the requirements of Part 2 of this Standard govern.

1.6
Type 1 steel cylinders may be requalified for further service in accordance with the procedure described in Annex B.

1.7
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

1.8
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.

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B51-14, Part 3 - Compressed natural gas and hydrogen refuelling station pressure piping systems and ground storage vessels

Scope

1.1

1.1.1
The pressure piping systems covered in Part 3 of this Standard are systems used in compressed natural gas (CNG) and hydrogen refuelling stations

(a) between the termination of the utility's piping, usually at the meter, and the inlet to the compressor assembly if the design pressure exceeds 414 kPa (60 psi); and

(b) from the inlet to the compressor assembly through to the dispenser nozzle, except for the mechanical parts of the compressor and any subsystems designed for 414 kPa (60 psi) or less.

1.1.2
The ground storage vessels covered in Part 3 of this Standard are pressure vessels that are installed at CNG and hydrogen refuelling stations and intended to store CNG or hydrogen at pressure for delivery to vehicle fuel tanks.

1.2
Where a clause in Part 3 of this Standard is at variance with codes or standards referenced in Part 3 of this Standard, the requirements of Part 3 of this Standard govern.

1.3
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

1.4
The values given in SI (metric) units are the standard. The values given in parentheses are for information only.


ANSI Z21.21-2015/CSA 6.5-2015

ANSI Z21.21-2015/CSA 6.5-2015 - Automatic valves for gas appliances

Preface

This is the fifth edition of ANSI Z21.21 / CSA 6.5, Automatic valves for gas appliances. It supersedes the previous editions published in 2012, 2005, 2000, and 1995.

Scope

1.1
This Standard applies to newly produced automatic valves (see Clause 3, Definitions) constructed entirely of new, unused parts and materials. These valves may be individual automatic valves or valves utilized as parts of automatic gas ignition systems.

This Standard also applies to commercial/industrial safety shutoff valves (see Clause 3), herein after referred to as C/I valves. This Standard does not apply to self-contained water heater, cooking appliance, or room heater thermostats, or self-contained automatic gas shutoff valves for hot water supply systems.

Components performing functions other than those of an automatic valve are to comply with applicable American National Standards or Canadian Standards.

Compliance of an automatic valve with this Standard does not imply that the automatic valve is acceptable for use on gas appliances without supplemental tests with the automatic valve applied to the particular appliance design.

A control that incorporates two or more automatic valves and no other function, (as defined by combination control, see Clause 3), may be tested to this Standard or to the Standard for Combination Gas Controls for Gas Appliances, ANSI Z21.78 / CSA 6.20, at the discretion of the manufacturer.

1.2
The valve operator of an automatic valve may be actuated either directly or indirectly. In addition, it may be actuated by electrical means, by mechanical means, by means of a change of the absolute pressure of gas or air upon a diaphragm, or by other means.

1.3
This Standard applies to automatic valves having maximum operating gas pressure ratings from ╜ psi (3.5 kPa) up to and including 60 psi (413.7 kPa). This Standard also applies to C/I valves having maximum operating gas pressure ratings of ╜ psi (3.5 kPa) or greater (see Clauses 6 and 7).

1.4
This Standard applies to automatic valves that are to be mounted in the manufacturer's specified upright position or in one (1) or more of the optional mounting positions selected by the manufacturer. (See Clause 5.1.1).

1.5
This Standard applies to automatic valves that are capable of operation at ambient temperatures of 32 F to 125 F (0 C to 51.5 C), unless a higher temperature, lower temperature, or both, are specified by the manufacturer. (See Clause 5.1.2).

1.6
If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

1.7
All references to psi throughout this Standard are to be considered gauge pressures unless otherwise specified.

1.8
Additional provisions concerning electrical coverage applicable to units defined for use in the United States are outlined in Clause 9, Items unique to the United States.

1.9
Additional provisions concerning electrical coverage, instructions, and markings applicable to units destined for use in Canada are outlined in Clause 10, Items unique to Canada.

1.10
Clause 2, Reference publications, contains a list of standards specifically referenced in this Standard and sources from which they may be obtained.

1.11
In this Standard, shall is used to express a requirement, i.e., a provision that the use shall satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised by not required; and may is used to express an option or that which is permissible with the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


CSA Z94.2-2014

Z94.2-14 - Hearing protection devices - Performance, selection, care, and use

Preface

This is the seventh edition of CSA Z94.2, Hearing protection devices - Performance, selection, care, and use. It supersedes previous editions published in 2002, 1994, 1984, 1979, 1974, and 1965.

This edition expands on performance requirements and the rating schemes that might help the user select hearing protection devices. It now includes the widely used noise reduction rating (NRR) and an applicable derating scheme.

This edition no longer includes physical performance and related testing requirements (such performance is no longer sought by Canadian users). It addresses acoustical performance measurements and includes revisions in the packaging marking requirements to clarify the use of the various ratings.

Clauses 8 to 12 regarding the selection, care, and use of hearing protection devices (HPDs) have been expanded to include issues related to style and functions of hearing protectors not mentioned in previous editions, as well as the potential use of field attenuation estimation systems (FAES). Table 4, which specifies the selection of HPDs based on noise exposure levels, now requires octave-band noise measurements at exposures greater than 105 dBA.

Although users of hearing protection devices are required to follow the criteria in Clauses 8 to 12 in order to comply with this Standard, reference should also be made to applicable local occupational health and safety regulations, which can require additional or superior performance.

The CSA Subcommittee on Hearing Protection recognizes that significant variations in performance (as great as 20 dB attenuation) can occur depending on how an HPD is used. This Standard emphasizes the importance of a comprehensive hearing loss prevention program, including hazard assessment and instruction on the careful selection, proper wearing, and high-quality maintenance of hearing protection devices. It is the opinion of the Subcommittee that wearing HPDs without proper selection, care, and use can result in significantly lower attenuation for the user than that obtained from the tests specified in this Standard.

This Standard should be used in conjunction with CSA Z1007, Management of hearing loss prevention programs, which is currently under development. CSA Z1007 covers all aspects of the creation and management of hearing loss prevention programs.

CSA gratefully acknowledges the financial and in-kind support from the Canadian government departments responsible for occupational health and safety for the development of this edition of the Standard.

Introduction

This Standard deals with hearing protection devices (HPDs). They are used to reduce the noise level that reaches the ear of noise-exposed people and to reduce the annoyance and/or hazard of noise exposure.

Of the many characteristics of HPDs, such as attenuation, comfort, and communication ability, this Standard focuses on attenuation. It specifies two methods of measuring the real-ear attenuation provided by HPDs and outlines how to use the results to estimate the sound levels reaching the protected ear. Several procedures for estimation of protected levels while wearing HPDs of varying accuracy and complexity are included in this Standard. The user may decide which one to use.

Other related issues such as fit, care, use, overprotection, selection, and training are also addressed. The companion Standard, CSA Z1007, contains more detailed information. CSA Z1007 covers the use of HPDs as part of a comprehensive hearing loss prevention program.

Scope

1.1
Clauses 4 to 7 cover performance, acoustical testing, and packaging requirements for personal hearing protection devices (HPDs). Clauses 8 to 12 cover the selection, care, and use of HPDs, which will contribute to an effective hearing loss prevention program.

1.2
The following types of HPDs are covered in this Standard:

a) earplugs (including semi-inserts);

b) earmuffs; and

c) helmets, with or without electronic communication capabilities.

1.3
In this Standard, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.


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