Editing Dynamite (section)

===Storage considerations===
The maximum [[shelf life]] of nitroglycerin-based dynamite is recommended as one year from the date of manufacture under good storage conditions.<ref name="Austin Blaster Guide" />

Over time, regardless of the sorbent used, sticks of dynamite will "weep" or "sweat" nitroglycerin, which can then pool in the bottom of the box or storage area. For that reason, explosive manuals recommend the regular up-ending of boxes of dynamite in storage. Crystals will form on the outside of the sticks, purportedly causing them to be even more sensitive to shock, friction, and temperature. Therefore, while the risk of an explosion without the use of a [[blasting cap]] is minimal for fresh dynamite, old dynamite is dangerous.{{citation needed|date=May 2023|reason=VegasUnderworld.com contests the semi-common perception that old, sweated dynamite might explode with slight shock or friction and claims to have tested throwing sweated dynamite sticks off cliffs to no effect. The site owner asserts that nitroglycerin has a very short shelf life and accidents related to old dynamite have not been reported for over fifty years.}} Modern packaging helps eliminate this by placing the dynamite into sealed plastic bags and using wax-coated cardboard.

Dynamite is moderately sensitive to shock. Shock resistance tests are usually carried out with a drop-hammer: about 100&nbsp;mg of explosive is placed on an anvil, upon which a weight of between {{convert|0.5|and|10|kg|lb|0|abbr=on}} is dropped from different heights until detonation is achieved.<ref>Carlos López Jimeno, Emilio López Jimeno, Francisco Javier Ayala-Carcedo, ''Drilling and Blasting of Rocks'', translated by Yvonne Visser de Ramiro from ''Manual de perforación y voladura de rocas'' (1987), Geomining Technological Institute of Spain (Instituto Tecnológico Geominero de Espan~a), Taylor & Francis, London and New York, 1995, {{ISBN|90-5410-199-7}}</ref> With a hammer of 2&nbsp;kg, [[mercury fulminate]] detonates with a drop distance of 1 to 2&nbsp;cm, nitroglycerin with 4 to 5&nbsp;cm, dynamite with 15 to 30&nbsp;cm, and ammoniacal explosives with 40 to 50&nbsp;cm.