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 5996-01-593-8959
NSN 4140-01-519-8910
NSN 5935-00-109-2952
NSN 6150-01-385-5041
NSN 5996-01-411-9718
NSN 6645-01-213-1739
NSN 5975-01-593-7223
NSN 2925-01-140-1015
NSN 6320-01-585-8468
NSN 6220-01-329-3446
NSN 5895-01-229-0157
NSN 5999-01-540-7884