Module 7 - IAFF

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IAFF Training for Hazardous Materials: Technician© Student Text The latest version of 1910.134 requires fire fighters entering structural fires to wear PP SCBA and to enter in teams of two, with a minimum of two equally equipped fire fighters standing by. This is the so-called “Two In - Two Out” rule. See Appendix E for more information on this rule. 7-20 Module 7: Personal Protective Equipment
Student Text IAFF Training for Hazardous Materials: Technician© Chemical Protective Clothing Since the inception of 1910.120 and NFPA 471 and 472, there have been many changes in the field of chemical protective clothing. There are now standards for chemical protective clothing and testing methods to ensure the standards are met and comparisons between clothing can be made. Materials and manufacturing methods have significantly improved in the past 15 years. There is a much greater choice available now than in the beginning stages of hazardous materials response. Construction of chemical protective clothing has changed from solid materials (e.g. butyl rubber, neoprene and viton) to layered materials. These barrier films can provide resistance to many more chemicals and the layered construction is lighter and more flexible. New materials and methods have also facilitated the construction of reasonably priced disposable garments. EPA originally established levels for CPC—the now familiar Level A, Level B, Level C and Level D. These levels were related to the style of clothing recommended to protect against various hazards. However, at that time there were no standards or rules regarding the construction and testing of garments made for these levels. There was also no standard for chemical resistance, or chemical resistance information provided with the garment. Users and manufacturers were left to their own devices to determine what was necessary and how to test and report the results. The NFPA semi-incorporated the EPA levels in NFPA 471. These levels made recommendations for an entire ensemble and in conjunction released NFPA 1991, 1992 and 1993. These three standards describe minimum requirements for chemical resistance, air tightness, flame resistance, abrasion resistance, leak resistance, flexibility, and general wear. It also stated how tests for these various requirements were to be conducted and how the results would be reported. These standards, although minimum requirements, finally provided information that CPC users could use to fairly compare garments. It also gave responders the Module 7: Personal Protective Equipment 7-21
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Module 7 - IAFF

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