NFPA 1991: Standard on Vapor-Protective Ensembles for Hazardous Materials Emergencies
Current Edition: 2005 Next Edition: 2016

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NFPA 1991:
2005 Edition
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What is NFPA 1991?
NFPA 1991: Document Scope
1-1.1* This standard shall specify minimum design, performance, certification, and documentation requirements; and test methods for vapor-protective ensembles and individual elements for chemical vapor protection; and additional optional criteria for chemical flash fire escape protection and liquefied gas protection. 1-1.2* This standard shall also specify additional optional criteria for vapor-protective ensembles and individual elements that will provide protection from chemical and biological warfare agents and chemical and biological terrorism incidents. 1-1.3 This standard shall apply to the design, manufacturing, and certification of new vapor-protective ensembles and new individual elements. This edition of this standard shall not apply to vapor-protective ensembles and individual elements manufactured to previous editions of NFPA 1991, Standard on Vapor-Protective Suits for Hazardous Chemical Emergencies. 1-1.4* This standard shall not apply to protective clothing for any fire fighting applications and shall not provide criteria for protection from radiological or cryogenic liquid hazards, or from explosive atmospheres. This standard shall not apply to vapor-protective ensembles for protection from biological hazards unless the ensemble is certified as compliant with the additional requirements for chemical and biological terrorism incidents. 1-1.5 This standard shall not specify the respiratory protection that is necessary for proper protection with the protective ensemble. 1-1.6 This standard shall not apply to use requirements for vapor-protective ensembles or individual elements as these requirements are specified in NFPA 1500, Standard on Fire Department Occupational Safety and Health Program. 1-1.7 Certification of compliant vapor-protective ensembles and compliant individual elements to the requirements of this standard shall not preclude certification to additional appropriate standards where the ensemble or individual elements meet all the applicable requirements of each standard. 1-1.8 The requirements of this standard shall not apply to accessories that might be attached to a vapor-protective ensemble, to an ensemble element, or to an individual element unless specifically addressed herein. 1-1.9 Nothing herein shall restrict any jurisdiction or manufacturer from exceeding these minimum requirements.
This standard provides requirements for protection for emergency responders against adverse vapor environments during hazardous materials incidents, and from specified chemical, biological, or radiological terrorism agents during chemical and biological terrorism incidents. Official document scope
What does NFPA 1991 address?
Provisions cover design, performance, labeling, testing, documentation, and certification requirements for new vapor-protective ensembles and ensemble elements. Additional optional criteria for escape protection only from chemical flash fires encountered during hazardous materials incidents are also provided.Table Of Contents.
NFPA 1991, 2005 Edition: Archived Revision Information
Report on Proposals (ROP)
Report on Proposals (ROP)
Proposals can be submitted for text to be amended or included in NFPA Codes and Standards. Following the Call for Proposals period, the responsible Technical Committee or Panel holds a meeting to consider and act on all submitted proposals. The committee or panel may also develop its own proposals. A document known as the Report on Proposals (ROP) is prepared containing all the Public Proposals, Technical Committees' action on each Proposal, as well as all Committee-generated proposals. The ROP for the document in question is submitted for the approval of the responsible TC or Panel by a formal written ballot. If the ROP does not receive approval via written ballot in accordance with NFPA rules, the Report is returned to the committee for further consideration and is not published. If the necessary approval is received, the ROP is published in a compilation of Reports on Proposals issued by NFPA twice yearly for public review and comment, and the process continues to the next step. The ROP is published and widely distributed and anyone may download or request a copy.
Report on Comments (ROC)
Report on Comments (ROC)
Once the ROP becomes available, there is a 60-day comment period during which time anyone may submit a public comment on the proposed changes documented in the ROP. The committee or panel reconvenes at the end of the comment period and acts on all public comments. This committee or panel may also develop its own comments. As before, approval obtained via written ballot in accordance with NFPA's Regulations is required on all committee and panel actions. All of this information is compiled into a second Report, called the Report on Comments (ROC), which like the ROP, is published and made available for public review for a seven-week period.
Archived revision information
NFPA 1991, 2005 Edition: Archived Revision Information
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