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 7035-01-659-7528
NSN 5835-00-594-4921
NSN 6145-01-444-1668
NSN 5990-01-100-7231
NSN 6110-01-378-5951
NSN 5835-01-074-7593
NSN 6650-00-276-9838
NSN 5935-01-170-2815
NSN 6610-01-160-6585
NSN 5910-01-535-7501
NSN 6105-01-170-4528
NSN 6650-01-340-0805