Module 7 - IAFF

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IAFF Training for Hazardous Materials: Technician© Student Text Two sets of chemically resistant gloves can be worn over a third pair of non-chemically resistant gloves (e.g. cotton or nitrile). These gloves increase comfort by absorbing moisture from the skin. Glove removal is also easier. Gloves Spare gloves or glove assemblies for garments should always be maintained in stock. Additionally, many jurisdictions purchase various types and materials of gloves to provide extra chemical protection and to protect the ensemble’s gloves. “Overgloving” with disposable gloves simplifies decontamination. It can also help protect the ensemble’s glove assembly. For example, an ensemble’s outer glove may have a very good chemical resistance, but may rip easily. To protect ensemble gloves in rough situations a team might don a heavier, structured glove like a butyl glove. The function of a butyl glove is primarily to protect the ensemble glove, not necessarily to provide chemical resistance. Also, gloves that take most abrasion and contact with product will simplify decontamination. By doffing these gloves before entering the first station, entry team members remove a large amount of contamination. Remember that an NFPA compliant garment with attached glove assembly should not be altered. The new version of the Standard addresses the “scuff” resistance of the ensemble, including the gloves. Many manufacturers have added a “Kevlar®” glove as the outer glove to provide abrasion resistance. These gloves have little chemical resistance and are disposable. Activity Boots Spare boots or boot assemblies for garments should always be maintained in stock. Many jurisdictions also purchase limited-use boots to provide extra chemical protection or provide protection to the ensemble boots from normal wear. “Overbooting” may also simplify decontamination. 7-48 Module 7: Personal Protective Equipment
Student Text IAFF Training for Hazardous Materials: Technician© Flash Protection Additional flash protection may be required for some atmospheres. This protection is worn over chemical protective clothing but has no chemical protective value. It is always preferable to change the atmosphere rather than enter an atmosphere that is or may become flammable. Cold (Cryogenic) Protection Chemical protective clothing offers no protection against the effects of cryogenic liquids (< minus130°F) or liquefied compressed gases. The extreme cold these products produce will very likely make materials (and the people inside them) brittle, causing them to fail. There are protective garments, particularly gloves, used by the cryogenic industry for use with these products. If this is a likely hazard in your jurisdiction, contact a local cryogenic manufacturer or gas handler for additional information. Purchasing Protective Clothing The type of protective clothing that is appropriate for your hazardous materials team depends on a number of factors: • The training expertise of team members • The frequency of hazardous materials incidents in your area • The type of hazardous materials incidents in your area (for example, if your jurisdiction is primarily rural, urban, industrial, residential, etc.) • Departmental budgets for purchase and maintenance • Departmental SOPs that govern hazardous materials activities No one type of ensemble is suitable for every department; each jurisdiction must carefully consider how the clothing will be used. Guidelines and a sample worksheet are provided in Appendix C. Module 7: Personal Protective Equipment 7-49
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Module 7 - IAFF

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