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   Data updated: 16 Jan 2026. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details

Document ID:   MIL-DTL-51490       Scroll down to access document images

Overview
Title:  Detector Kit, Chemical Agent: M256A2
Scope:  This specification covers one type of detector kit used to determine the presence
or absence of contamination from nerve, blister, blood, and lewisite chemical warfare agents.
The kit includes six individually packaged M256A2 sampler---detectors, four packages of Low
Volatility Hazard (LVH) components, a packaged booklet of M8 paper, a set of instruction
cards, and a canteen---size carrier pouch. Each M256A2 sampler---detector is used to sample
the air to determine if nerve, blood, or blister agents are present. The LVH components, when
used with the kit’s sampler---detectors, enable a user to detect nerve or blister agents present in
liquid or solid form on suspected contaminated surfaces (see 6.1). In this specification, the
terms “sampler---detector”, “sampler assembly”, and “sampler” are considered synonymous.
Status:  Active Document Date:  07-JAN-2022      
  Next Review Due:  06-JAN-2027
6665 Doc Category:   Detail Specification  

Responsibilities
Lead Standardization Activity:  SH  Naval Sea Systems Command (Ship Systems)  
  Preparing Activity: EA  Edgewood Chemical Biological Center (ECBC)
Coordination:  Full  
Army Custodian:  EA   Edgewood Chemical Biological Center (ECBC)  
Navy Custodian:  SH   Naval Sea Systems Command (Ship Systems)  
Air Force Custodian:  99   Air Force Life Cycle Management Center - Item Reduction Support  

Amendments to military specifications or specification sheets issued after August 1, 2003 are incorporated in the modified document.

   Controlled Distribution Document(s)   
Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtDocument DatePagesSize
Document ImageRevision D Notice 1 - ValidationA07-JAN-202211.9 KB
lock Revision D C10-JAN-201731195.8 KB
lock Revision C Amendment 3 (all previous amendments incorporated)X06-SEP-201231183.4 KB
lock Revision C Amendment 2 (all previous amendments incorporated)X17-OCT-201131183.6 KB
lock Revision C Amendment 1 (amendment incorporated)X09-SEP-201031185.9 KB
lock Revision C X15-OCT-200831191.9 KB
lock Revision B Amendment 2 (all previous amendments incorporated)X09-JUL-200824163.5 KB
lock Revision B Amendment 1 (amendment incorporated)X05-MAR-200725165.4 KB
lock Revision B X29-MAR-200524162.7 KB
Document ImageRevision A Notice 2 - ValidationA29-JUL-200412.2 KB
Document ImageRevision A Notice 1 - InactivationA27-DEC-1995123.5 KB
lock Revision A Amendment 4 X14-DEC-1989370.5 KB
lock Revision A X18-JUL-1986235387.9 KB

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