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DOP Test

DOP Test

The 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 pre-qualification for NIOSH certification of respirators. Nelson Laboratories has extensive experience testing filters and other filtration devices.

Applicable Standards

  • 42 CFR Part 84
  • NIOSH Procedure No. RCT-APR-STP-0051-0056

Test Options

Standard turn around times (TAT) are listed below. Ask an expert for a specific consultation on your product. If you are ready to submit your samples for testing, click here to fill out the Sample Submission Form.

Code Test TAT (days) Request Quote
DOP110 Filtration Efficiency: Dioctyl Phthalate (DOP) 10 Add
NRC115 NIOSH Respirator Certification: Dioctyl Phthalate (DOP) 15 Add
DOP110 - Filtration Efficiency: Dioctyl Phthalate (DOP)
TAT: 10 days
NRC115 - NIOSH Respirator Certification: Dioctyl Phthalate (DOP)
TAT: 15 days

Sample Specifications

NRC115: 20 masks

Study Outline

The DOP aerosol test is a widely accepted method for evaluating particle penetration and air flow resistance properties of a variety of filtration materials (e.g., breathing system filters, NIOSH respirators and face masks). The procedure employs an aerosol of DOP using a TSI® CERTITEST® Model 8130 Automated Filter Tester.

Test articles are challenged with particles of the most penetrating particle size range, 0.3 µm. Filtration efficiency measurements can be determined up to 99.999%. Samples can be tested at flow rates up to 90 liters per minute (LPM). The filtration requirement for HEPA filters is 99.97% at 0.3 µm using the DOP test.
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