Table 7. Impact tests of solid PETN–CH at reduced temperature.

Drop/striker	Temp. (°F)	Operator determination	Post observation
1/1	46.8	No	Cooled 1 degree
2/1	46.4	Go	Warmed 2 degrees
3/1	47.9	Snap	None
4/1	47.7	Go	Warmed 2.2 degrees
5/2	47.3	Weak Go, double snap	Cooled 1 degree
6/2	47.5	No Go	Cooled 0.3 degrees
7/2	47.3	Medium Go	Warmed 0.2 degrees
8/3	47.0	Snap	Cooled 1 degree
9/3	46.5	Hard snap, maybe Go	Warmed 0.2 degrees
10/3	47.6	Snap	Cooled 1.3 degrees
11/3	47.3	Weak snap	Cooled 0.8 degrees
12/4	47.4	Go	Warmed 0.4 degrees