30 CFR § 15.32 - Tolerances for weight of explosive, sheath, wrapper, and specific gravity.
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(a) The weight of the explosive, the sheath, and the outer covering shall each be within ±7.5 percent of that specified in the approval.
(b) The ratio of the weight of the sheath to that of the explosive shall be within ±7.5 percent of that specified in the approval.
(c) The specific gravity of the explosive and sheath shall be within ±7.5 percent of that specified in the approval.