Code of Federal Regulations
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30 CFR Mineral Resources
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I Mine Safety and Health ...
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B Testing, Evaluation, an...
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15 Requirements For Appro...
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Subpart B —
Requirements for Approval of Explosives
§15.20 —
Technical requirements
§15.21 —
Tolerances for ingredients
§15.22 —
Tolerances for performance, wrapper, and specific gravity