significance And Use:

scope:

1.1 This guide provides guidance on how to conduct fit testing of tight-fitting respirators and appropriate methods to be used. Fit testing is only one element of a complete respiratory protection program. Examples of complete respiratory protection programs are defined in Practice F3387, 29 CFR 1910.134, and so forth.

1.2 Purpose-This guide provides requirements for conducting respirator fit testing and includes:

1.2.1 Qualifications for fit test operators,

1.2.2 Specific fit test methods,

1.2.3 Interpretation of fit test results,

1.2.4 Recordkeeping, and

1.2.5 Methods to validate new fit test methods.

1.3 Should and Shall-The provisions of this guide are mandatory in nature when the word "shall" is used and advisory in nature when the word "should" is used.

1.4 Units-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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 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.