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 5855-01-100-3272
NSN 5920-01-423-4775
NSN 5915-01-224-7044
NSN 6130-00-054-6391
NSN 5910-01-588-5270
NSN 6110-01-538-5234
NSN 6150-01-005-3558
NSN 5985-01-165-9808
NSN 5920-00-513-4546
NSN 5920-01-399-5998
NSN 5985-01-249-2734
NSN 5985-01-424-1097