Concept Standard for Chemical, Biological, Radiological, and Nuclear (CBRN), Full Facepiece, Closed-Circuit, Self-Contained Breathing Apparatus (SCBA)
NOTE: This page is archived for historical purposes and is no longer being maintained or updated.
DRAFT FOR DISCUSSION
November 04, 2005
The purpose of this standard is to specify minimum requirements to determine the effectiveness of a full facepiece, closed-circuit, self-contained breathing apparatus (CC-SCBA) used for entry into chemical, biological, radiological, and nuclear (CBRN) atmospheres that are Immediately Dangerous to Life or Health (IDLH). Currently, there is a NIOSH prohibition for entry into high radiant heat and open flame environments while wearing a pure oxygen, positive pressure CC-SCBA. Paragraph 4 of this standard specifies minimum requirements to ensure that the CC-SCBA possesses some features of high radiant heat and open flame resistance characteristics. These requirements are not meant to sanction its use in a firefighting situation.
Download the complete document: Concept Standard for Chemical, Biological, Radiological, and Nuclear (CBRN), Full Facepiece, Closed-Circuit, Self-Contained Breathing Apparatus (SCBA), November 04, 2005 [PDF - 126KB]
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