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 5895-01-438-3714
NSN 6145-01-340-0300
NSN 6620-01-614-3591
NSN 5985-01-502-4286
NSN 5835-00-863-0959
NSN 5905-00-116-8837
NSN 5985-01-559-8853
NSN 6620-01-326-0715
NSN 5945-01-294-4729
NSN 5905-01-499-1031
NSN 5895-00-905-3840
NSN 5855-01-260-3693