Grenades, practice hand or rifle

Guanidine nitrate

Guanyl nitrosaminoguanylidene hydrazine, wetted with 30% or more water, by weight

Guanyl nitrosaminoguanyltetrazene, wetted with 30% or more water or mixture of alcohol and water, by weight

Gunpowder granular or as a meal

Gunpowder in pellets

Gunpowder, compressed

Hafnium powder, dry

Hafnium powder, dry

Hafnium powder, dry

Hafnium powder, wetted with not less than 25% water (a visible excess of water must be present) (a) mechanically produced: particle size less than 53 microns; (b) chemically produced: particle size less than 840 microns

Halogenated monomethyldiphenylmethanes, liquid

Halogenated monomethyldiphenylmethanes, solid

Hay

Heating oil, light

Helium, compressed

Helium, refrigerated liquid

Heptafluoropropane

n-Heptaldehyde

Heptanes