Masks intended for respirator precertification may require NaCl, DOP, valve leak, and inhalation/exhalation tests to verify conformity to NIOSH standards. Nelson Labs offers precertification testing services for these tests.
The Sodium Chloride Aerosol Challenge (NaCl) – NIOSH Respirator Prequalification test uses a widely accepted method for evaluating particle penetration and air flow resistance properties of a variety of filtration materials. Respirators must be prequalified before submitting to NIOSH for certification; other materials, such as breathing system filters and face masks, are tested to determine filtration efficiency for marketing. These tests are performed for masks seeking N95 respirator precertification.
The Dioctyl Phthalate (DOP) test is used to evaluate particle penetration and air flow resistance properties for a variety of filtration materials, including HEPA filters, NIOSH respirators, and filter media. The test is performed in compliance with 42 CFR Part 84 and NIOSH Procedure No. RCT-APR-STP-0051-0056, 2005 and is necessary for prequalification for NIOSH certification of respirators. Nelson Labs has extensive experience testing filters and other filtration devices.
Testing is performed in compliance with 42 CFR Part 84 and NIOSH Procedure No. RC-APR-STP-0057, 0058 and 0059. Nelson Labs has extensive experience testing filters and other filtration devices.
- NIOSH 95
- 42 CFR Part 84
- NIOSH Procedure No. TEB-APR-STP-0057-0058-0059
Download our respirator testing requirements PDF to assist you in determining which test is required for your location.