Determination of Open Circuit, Self-Contained Breathing Apparatus (SCBA) Performance During Dynamic Testing against Chemical Agents of Sarin (GB) Vapor and Distilled Sulfur Mustard (HD) Vapor and Liquid Standard Testing Procedure (STP) [open pdf - 2MB]
"This test establishes the procedures for ensuring the level of respiratory protection provided under special Chemical, Biological, Radiological, and Nuclear (CBRN) requirements for Open-circuit Self-Contained Breathing Apparatus (SCBA) with Full Face piece submitted for Approval, Extension of Approval, or examined during Certification Product Audits, meet the minimum certification standards set forth in Title 42 CFR, Part 84, Subpart G, Section 84.63(c). This procedure is used to test SCBA systems against Sarin GB vapor or Distilled Sulfur Mustard (HD) vapor and/or liquid, while the mask is operated in dynamic mode by means of a breather pump connected to the mouth area of the manikin. The mask is installed on a head/upper torso form known as a Simulant Agent Resistant Test Manikin (SMARTMAN). The SMARTMAN is enclosed in an air-tight exposure chamber. Instrumentation is integrated under one static chamber platform capable of generating and controlling challenge concentrations and detecting precise agent permeation of a tested respirator. Sampling ports, associated detection systems and exhalation engineering controls in the SMARTMAN are used to detect the presence of agent at known sampling areas of the eye and oral/nasal regions."
Center for Disease Control and Prevention: http://www.cdc.gov/