Book-bot.com - Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 - Federal Investigations of Mine Accidents, Structural - Materials and Fuels. Paper No. 1171 by Wilson, Herbert M.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 - Federal Investigations of Mine Accidents, Structural - Materials and Fuels. Paper No. 1171 by Herbert M. Wilson
page 59 of 187 (31%)

Used on Trauzl lead blocks, pressure gauge, calorimeter, and small lead
blocks:

M - l(l/m). Triple-strength exploder.

Charge 1.5729 grammes.

Mercury Chlorate
fulminate. of potash.
Specification 89.73 10.27

Used on all other tests:

M - 260(l/m). Double-strength exploder.

Charge 0.9805 grammes.

Mercury Chlorate
fulminate. of potash.
Specification 91.31 8.69

_6.--Ballistic-Pendulum Tests._

This record includes powder used, weight of charge, swing of mortar, and
unit disruptive charge, the latter being the charge required to produce
a swing of the mortar equal to that produced by Â½ lb. (227 grammes) of
40% dynamite, or 3.01 in.

_7.--Record of Tests._