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CAN/CSA Z94.4-2011 (R2016)

CAN/CSA-Z94.4-11 - Selection, use, and care of respirators

Update #1 was published as notification that this is now a National Standard of Canada.

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Preface

This is the fourth edition of CSA Z94.4, Selection, use, and care of respirators. It supersedes the previous editions published in 2002, 1993, and 1982.

1 Scope

1.1 - This Standard sets out requirements for the selection, use, and care of respirators and for the administration of an effective respiratory protection program in the workplace.

1.2 - This Standard is not intended to address the selection of:
  1. respirators for aircraft oxygen systems;
  2. supplied-air suits; or
  3. respirators for protection against radiological contaminants. This Standard applies to all other aspects of a respiratory protection program for these respirators.
1.3 - This Standard is applicable to the selection, use, and care of respirators for non-emergency and emergency situations but is not intended to address the requirements for protection for first responders during CBRN (chemical, biological, radiological, and nuclear) events. See CAN/CGSB/CSA-Z1610.

1.4 - This Standard is not intended to address:
  1. underwater breathing devices (see CSA Z275.2); or
  2. inhalators and resuscitators.
1.5 - The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

1.6 - In CSA standards, 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.

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