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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.

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)
10 days
NRC115 - NIOSH Respirator Certification: Dioctyl Phthalate (DOP)
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.