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 6220-00-890-9387
NSN 5855-00-149-0766
NSN 6610-00-273-3016
NSN 5925-01-317-6170
NSN 6145-01-117-6361
NSN 5925-01-029-3483
NSN 6105-01-237-5583
NSN 2925-01-132-5827
NSN 5915-01-355-7305
NSN 7035-01-438-2108
NSN 7035-01-232-2657
NSN 5965-01-213-7256