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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter B - Testing, Evaluation, and Approval of Mining Products |
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Part 15 - Requirements for Approval of Explosives and Sheathed Explosive Units |
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Subpart B - Requirements for Approval of Explosives |
§ 15.21 - Tolerances for ingredients.
Latest version.
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§ 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 5.0 1.2 5.1 to 10.0 1.5 10.1 to 20.0 1.7 20.1 to 30.0 2.0 30.1 to 40.0 2.3 40.1 to 50.0 2.5 50.1 to 55.0 2.8 55.1 to 100.0 3.0