Draft Details

Designation:Z94.4
Source:CSA
Review start date:Jan 18, 2024
Review end date:Mar 18, 2024
Contact email:bradyn.lawrenson(at)csagroup.org
Draft Scope/Description:

1.1 Scope of the standard

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 Applicability

This Standard is applicable to the selection, use, and care of respirators for non-emergency and emergency situations.

1.3 Outside of scope for selection

This Standard is not intended to address the selection of:

a) respirators for aircraft oxygen systems;

b) supplied-air or ventilated suits;

c) respirators for investigating and dismantling clandestine synthetic drug laboratories (CDLs) and marijuana grow operations (MGOs) (see CAN/CGSB/CSA-Z1640-18); or

d) respirators for protection against radiological contaminants.

This Standard applies to all other aspects of a respiratory protection program for these respirators.

1.4 Outside of scope for selection, requirements, and use:

This Standard is not intended to address the selection, requirements, and use of:

a) underwater breathing devices (see CSA Z275.2);

b) inhalators and resuscitators; or

c) respiratory protection for first responders during CBRN (chemical, biological, radiological, and nuclear) events (see CAN/CGSB/CSA-Z1610; Clauses of CSA Z94.4 may be referenced within).

1.5 Units of measurement

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 Standard language

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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