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e-CFR data is current as of September 17, 2020

Title 30Chapter ISubchapter BPart 15Subpart B → §15.21


Title 30: Mineral Resources
PART 15—REQUIREMENTS FOR APPROVAL OF EXPLOSIVES AND SHEATHED EXPLOSIVE UNITS
Subpart B—Requirements for Approval of Explosives


§15.21   Tolerances for ingredients.

Tolerances for each ingredient in an explosive, which are expressed as a percentage of the total explosive, shall not exceed the following:

(a) Physical sensitizers: The tolerances established by the applicant;

(b) Aluminum: ±0.7 percent;

(c) Carbonaceous materials: ±3 percent; and

(d) Moisture and ingredients other than specified in paragraphs (a), (b), and (c) of this section: The tolerances specified in Table II.

Table II—Tolerances for Moisture and Other Ingredients

Quantity of ingredients (as percent of total explosive or sheath)Tolerance percent
0 to 5.01.2
5.1 to 10.01.5
10.1 to 20.01.7
20.1 to 30.02.0
30.1 to 40.02.3
40.1 to 50.02.5
50.1 to 55.02.8
55.1 to 100.03.0

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