Methylene chloride must be refrigerated until ready to use, not an explosive; used un calibration of devices used to detect explosives; which have nitrogen present
NSN 5910-01-023-1406
NSN 5965-01-429-9777
NSN 5920-00-885-0367
NSN 6610-00-584-5055
NSN 6650-00-853-7782
NSN 5965-01-593-6478
NSN 6150-01-331-3540
NSN 6220-00-379-4044
NSN 5910-00-052-3276
NSN 2925-01-496-4699
NSN 5895-01-078-7323
NSN 5950-01-597-9612