CDC logoSafer Healthier People CDC HomeCDC SearchCDC Health Topics A-Z
NIOSH - National Institute for Occupational Safety and Health

Skip navigation links Search NIOSH  |  NIOSH Home  |  NIOSH Topics  |  Site Index  |  Databases and Information Resources  |  NIOSH Products  |  Contact Us

Risk Based Protective Clothing Material Permeation Criteria - FY10

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Current Information can be found at: Risk Based Protective Clothing Material Permeation Criteria - FY11


  • Examine existing toxicity data for selected toxic industrial chemicals (TICs) to determine ratios of acceptable dermal to inhalation doses and create detailed permeation procedures in parallel to apply criteria.
Permeation testing equipment

Applicable Standards

  • NFPA Protective Clothing Standards - 1991, 1994, 1971, 1951
  • ASTM F739 Standard Test Method for Resistance of Protective Clothing Materials to Permeation by Liquids or Gases Under Conditions of Continuous Contact

Key Partners

  • NFPA
  • TSWG
  • ASTM
  • Funded in part by TSWG


  • Emergency Responders
  • Manufacturers
  • Test Laboratories
  • Certification Laboratories

Project Scope

  • Determine new permeation test end points for TICs that are toxicity-based.
  • Develop uniform permeation testing parameters and procedures to increase ease and reproducibility.
  • Provide new permeation criteria and test methods to standards to lessen over design of barrier protective clothing.


  • Q1 Complete installation and calibration of new GC-MS and finalize cell sealing procedure
  • Q2 Provide update at NFPA HazMat Meeting and continue development of test system and begin swatch testing
  • Q3 Submit ASTM Ballot for Cumulative Permeation Method , AIHCE Science Symposium Presentation
  • Q4 Complete test method development and submit final report to TSWG


  • Presentations at conferences (8)
  • Presentation at standards committee meetings and public meetings (2)
  • Manuscripts published or submitted to peer review journals
  • Final report with technical data including recommended criteria/end points and methods for permeation testing for use by the NFPA Technical Committees and ASTM F23


  • Revisions or updates to NFPA 1994, NFPA 1971, NFPA 1991, NFPA 1951 and ASTM F739
  • New ASTM cumulative permeation test method
Page last updated: April 5, 2010
Page last reviewed: April 5, 2010
Content Source: National Institute for Occupational Safety and Health (NIOSH)
National Personal Protective Technology Laboratory