I believe that a more physically consistent term is "explosive mass", since it is mass that is measured in kg

ВВ --взрывчатое вещество

weight of explosive

or

Weight of explosive material


http://deseretnews.com/dn/view/0,1249,600121107,00.html
A 105mm howitzer shell fired near Sundance in Provo Canyon overshot its mark and landed with a bang in the Conners' back yard. The boom was heard over several blocks. ... Utah Department of Transportation officials, who have taken responsibility for the errant mortar, say the event is a rarity, even though they set off 560 rounds of explosive material every year in an attempt to control avalanche danger in the Provo, American Fork, Big and Little Cottonwood canyons.

http://www.ku.edu/carrie/specoll/medical/delorme/2guns.htm
4. Explosive Shells.--Their moderately thick steel walls are hollowed out into a large cavity filled with an explosive material (gun-cotton,, melinite, cresylite, etc.) The explosive shells are generally fired in the proportion of 1 to 3 by all artillery. The variable quantity of explosive material contained in a shell has a very great influence on the effects produced. The German shell containing but 150 grammes (2,315 grains) of melinite is far less destructive than the French grape shot shell, which contains 800 grammes (176 pounds) of the same material.
(this page contains a whole bunch of vocabulary propbably topical for this and subequent questions.)

http://www.hydrocut.com/Terms/H.html
Heat Test
Accelerated stability test of an explosive material.