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New Methods for End of Service Life Indicators and Change-Out Schedules -FY06

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.
Current Information can be found at: New Methods for End of Service Life Indicators and Change-Out Schedules -FY07

Objective

  • Develop and apply a theoretical and semi-empirical physical model for describing, correlating, and predicting breakthrough times of gases (inorganic and organic), which are removed from air by reactions with or catalysis by chemical impregnates on activated carbon in packed beds.
MultiVapor software cover art

Applicable Standards

  • OSHA standard 1910.134(d)(3)(iii)(B)(2)42 CFR Part 84 Subpart G, Section 84.1157. Vol 60, Number 110

Key Partners

  • National Paint and Coatings Association
  • Organization Resources Counselors, Inc.
  • American Petroleum Institute
  • Los Alamos National Labratory

Stakeholders

  • Emergency worker and general industry workers who utilize air purifying respirators

Project Scope

  • Continue work on mathematical modeling

Milestones

  • Receive notification of a publication date for Multivapor
  • Convert Multivapor software to JAVA
  • Begin work on dynamic model
  • Develop testing procedure for Acid-Base model data

Outputs

  • Publish Multivapor paper
  • Produce Multivapor software and tutorial
  • Develop Web based Multivapor software

Outcomes

  • Three models that will cover most chemical agents to calculate ESL for air purifying respirators
Page last modified: July 23, 2007
Page last reviewed: July 23, 2007 (archived document)
Content Source: National Institute for Occupational Safety and Health (NIOSH)