Drinking Water
Water makes up about 70% of our body so it is important to know the water we are drinking is treated well and effectively. These standards have guides and tests to make drinkable water safer.
ISO 24511:2007
Activities relating to drinking water and wastewater services - Guidelines for the management of wastewater utilities and for the assessment of wastewater services
ISO 24511:2007 provides guidelines for the management of wastewater utilities and for the assessment of wastewater services.
ISO 24511:2007 is applicable to publicly and privately owned and operated wastewater utilities, but does not favour any particular ownership or operational model.
ISO 24511:2007 addresses wastewater systems in their entirety and is applicable to systems at any level of development (e.g. pit latrines, on-site systems, networks, treatment facilities).
The following are within the scope of ISO 24511:2007:
- the definition of a language common to different stakeholders;
- objectives for the wastewater utility;
- guidelines for the management of wastewater utilities;
- service assessment criteria and related examples of performance indicators, all without setting any target values or thresholds.
ISO 24512:2007
Activities relating to drinking water and wastewater services - Guidelines for the management of drinking water utilities and for the assessment of drinking water services
ISO 24512:2007 provides guidelines for the management of drinking water utilities and for the assessment of drinking water services.
ISO 24512:2007 is applicable to publicly and privately owned and operated water utilities. It does not favour any particular ownership or operating model.
ISO 24512:2007 addresses drinking water systems in their entirety and is applicable to systems at any level of development (e.g. on-site systems, distribution networks, treatment facilities).
The following are within the scope of ISO 24512:2007:
- the definition of a language common to different stakeholders;
- the definition of the components of drinking water supply systems;
- guidelines for the management of drinking water utilities;
- guidelines for objectives, service assessment criteria and related performance indicators, appropriate for the assessment of drinking water services.
ISO 24518:2015
Activities relating to drinking water and wastewater services - Crisis management of water utilities
ISO 24518:2015 provides general guidance to water utilities to develop and implement a crisis management system.
ISO 24518:2015 may be applicable to all sizes of public or private water utilities that want to prepare, respond, and recover from a crisis.
ISO 24521:2016
Activities relating to drinking water and wastewater services - Guidelines for the management of basic on-site domestic wastewater services
ISO 24521:2016 provides guidance for the management of basic on-site domestic wastewater services, using appropriate technologies in their entirety at any level of development.
ISO 24521:2016 supplements and is intended to be used in conjunction with ISO 24511. It includes the following:
╖ guidelines for the management of basic on-site domestic wastewater services from the operator's perspective, including maintenance techniques, training of personnel and risk considerations;
╖ guidelines for the management of basic on-site domestic wastewater services from the perspective of users;
╖ guidance on the design and construction of basic on-site domestic wastewater systems;
╖ guidance on planning, operation and maintenance, and health and safety issues.
The following are outside the scope of ISO 24521:2016:
╖ limits of acceptability for wastewater discharged into a receiving body;
╖ analytical methods;
╖ the management structure of sanitary waste/wastewater service activities of operation and management;
╖ the content of contracts or subcontracts.
ISO 24521:2016 is applicable to both publicly and privately operated basic on-site domestic wastewater (black and grey water) services, for one or more dwellings.
ISO/TS 24520:2017
Service activities relating to drinking water supply systems and wastewater systems - Crisis management - Good practice for technical aspects
ISO/TS 24520:2017 provides guidance to water utilities on good practice in technical aspects of crisis management.
ISO/TS 24520:2017 is applicable to all water utilities, of whatever size, whether public or private, that wish to review the effectiveness and efficiency of their service activities relating to preparation for, response to and recovery from a crisis.
ASTM D4107-20
Standard Test Method for Tritium in Drinking Water
1.1 This test method covers the determination of tritium in drinking water by liquid scintillation counting of the tritium beta particle activity. 1.2 This test method is used successfully with drinking water. It is the user s responsibility to ensure the validity of this test method for untested water matrices. 1.3 The tritium concentrations, which can be measured by this test method utilizing currently available liquid scintillation instruments, range from less than 0.037 Bq/mL (1 pCi/mL) to 555 Bq/mL (15 000 pCi/mL) for a 10-mL sample aliquot. Higher tritium concentrations can be measured by diluting or using smaller sample aliquots, or both. 1.4 The maximum contaminant level for tritium in drinking water as given by the United States Environmental Protection Agency (U.S. EPA) National Primary Drinking Water Regulations (NPDWR) is 0.740 Bq/mL (20 pCi/mL). The NPDWR lists a required detection limit for tritium in drinking water of 0.037 Bq/mL (1 pCi/mL), meaning that drinking water supplies, where required, should be monitored for tritium at a sensitivity of 0.037 Bq/mL (1 pCi/mL). In Appendix X1 , Eq X1.3 is given for determining the necessary counting time to meet the required sensitivity for drinking water monitoring. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D5072-09(2016)
Standard Test Method for Radon in Drinking Water
1.1 This test method covers the measurement of radon in drinking water in concentrations above 2 Bq/L.
1.2 This test method may be used for absolute measurements by calibrating with a 226Ra standard or for relative measurements by comparing the measurements made with each other.
1.3 This test method is used successfully with drinking water samples and Type III reagent water conforming to Specification D1193. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
NSF/ANSI 42-2021
Drinking Water Treatment Units - Aesthetic Effects
The point-of-use (POU) and point-of-entry (POE) systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private) considered to be microbiologically safe and of known quality. Systems covered under this Standard are intended to address one or more of the following: reduce substances affecting the aesthetic quality of the water, add chemicals for scale control, or limit microbial growth in the system (bacteriostatic). Substances may be soluble or particulate in nature. It is recognized that a system may be effective in controlling one or more of these substances but is not required to control all. Systems with manufacturer claims that include components or functions covered under other NSF or NSF/ANSI Standards or Criteria shall conform to the applicable requirements therein. Filter systems covered by this Standard are not intended to be used with drinking water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
NSF/ANSI 53-2020
Drinking Water Treatment Units - Health Effects
The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private) considered to be microbiologically safe and of known quality. Systems covered under this Standard are intended to reduce substances that are considered established or potential health hazards. They may be chemical or particulate (including filterable cysts) in nature. It is recognized that a system may be effective in controlling one or more of these contaminants, but systems are not required to control all. Systems with manufacturer claims that include components or functions covered under other NSF or NSF/ANSI Standards or Criteria shall conform to the applicable requirements therein. Systems covered by this Standard are not intended to be used with drinking water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
NSF/ANSI 55-2020
Ultraviolet Microbiological Water Treatment Systems
The purpose of this Standard is to establish minimum requirements for the reduction of microorganisms using ultraviolet radiation (UV). UV water treatment systems covered by this Standard are intended for water that may be either microbiologically safe or microbiologically unsafe. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners, as well as the minimum service-related obligations that the manufacturer shall extend to system owners.
NSF/ANSI 58-2020
Reverse Osmosis Drinking Water Treatment Systems
The purpose of this Standard is to establish minimum requirements for materials, design and construction, and performance of reverse osmosis drinking water treatment systems. This Standard also specifies the minimum product literature that manufacturers shall supply to authorized representatives and owners, as well as the minimum service-related obligations that manufacturers shall extend to system owners.
NSF/ANSI/CAN 60-2021/NSF/ANSI/CAN 600-2021
Drinking Water Treatment - Chemicals - Health Effects
This Standard establishes minimum health effects requirements for the chemicals, the chemical contaminants, and the impurities that are directly added to drinking water from drinking water treatment chemicals. This Standard does not establish performance or taste and odor requirements for drinking water treatment chemicals. PLEASE SEE ADDENDUM TO NSF/ANSI/CAN 600-2021 AVAILABLE SEPARATELY.
NSF/ANSI/CAN 61-2021/NSF/ANSI/CAN 600-2021
Drinking Water System Components - Health Effects
This Standard is intended to cover specific materials or products that come into contact with: drinking water, drinking water treatment chemicals, or both. The focus of the Standard is evaluation of contaminants or impurities imparted indirectly to drinking water. The products and materials covered include, but are not limited to, process media (e.g., carbon, sand), protective materials (e.g., coatings, linings, liners), joining and sealing materials (e.g., solvent cements, welding materials, gaskets), pipes and related products (e.g., pipes, tanks, fittings), mechanical devices used in treatment / transmission / distribution systems (e.g., valves, chlorinators, separation membranes, point-of-entry (POE) drinking water treatment systems), and mechanical plumbing devices (e.g., faucets, endpoint control valves). PLEASE SEE ADDENDUM TO NSF/ANSI/CAN 600-2021 AVAILABLE SEPARATELY
NSF/ANSI 62-2021
Drinking Water Distillation Systems
This standard establishes minimum materials, design and construction, and performance requirements for point-of-use and point-of-entry drinking water distillation systems and the components used in these systems. Distillation systems covered by this standard are designed to reduce specific chemical contaminants from potable drinking water supplies. Systems covered under this standard may also be designed to reduce microbiological contaminants, including bacteria, viruses, and cysts, from potable drinking water supplies. It is recognized that a system may be effective in controlling one or more of these contaminants, but systems are not required to control all.
NSF/ANSI 223-2020
Conformity Assessment Requirements for Certification Bodies that Certify Products Pursuant to NSF/ANSI/CAN 60: Drinking Water Treatment Chemicals - Health Effects
This Standard establishes minimum requirements for certification bodies to be used when certifying products to NSF/ANSI/CAN 60 - Drinking Water Treatment Chemicals – Health Effects. These requirements are supplemental to those contained in ISO Guide 65 or ISO 17020 and do not replace the requirements of either ISO standard. By specifying this Standard, users of product certifications can communicate their expectation that certification activities addressed herein are performed in the particular manner described.
NSF/ANSI 244-2021
Supplemental Microbiological Water Treatment Systems - Filtration
The point-of-use (POU) and point-of-entry (POE) systems addressed by this Standard are designed to be used for the supplemental microbial control of specific organisms that may occasionally be present in drinking water (public or private) because of intermittent incursions. Certain of these specific organisms that may be introduced into the drinking water are considered established or potential health hazards. This Standard establishes requirements for POU and POE drinking water treatment systems, and the materials and components used in these systems.
NSF/ANSI 330-2020
Glossary of Drinking Water Treatment Unit Terminology
Definitions covered by this Standard consist of terminology related to drinking water treatment units including terms describing materials, design, construction, and performance testing. This Standard includes definitions of terms used in NSF Drinking Water Treatment Unit Standards.
NSF/ANSI 401-2021
Drinking Water Treatment Units - Emerging Compounds/Incidental Contaminants
It is the purpose of this Standard to establish minimum requirements for materials, design and construction, and performance of drinking water treatment systems that are designed to reduce specific emerging compounds / incidental contaminants in public or private water supplies, such as pharmaceutical, personal care products, and endocrine disrupting compounds. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners as well as the minimum service-related obligations that the manufacturer shall extend to system owners.
NSF/ANSI 419-2018
Public Drinking Water Equipment Performance - Filtration
It is the purpose of this Standard to establish minimum performance requirements for bag filters, cartridge filters, and microfiltration (MF) or ultrafiltration (UF) membranes used in the treatment and production of public drinking water.
NSF/ANSI/CAN 600-2021
Health Effects Evaluation and Criteria for Chemicals in Drinking Water
The Standard defines the toxicological review and evaluation procedures for the evaluation of substances imparted to drinking water through contact with drinking water system components (and drinking water additives). It is intended to establish the human health risk, if any, of the substances imparted to drinking water under the anticipated use conditions of the product. Table 4.1 of this Standard contains evaluation criteria that have been determined according to the requirements of this Standard. PLEASE SEE ADDENDUM TO NSF/ANSI/CAN 600-2021 AVAILABLE SEPARATELY
