{"data":{"id":"us/30-cfr-15.21","jurisdiction":"us","citation":"30 CFR 15.21","heading":"Tolerances for ingredients.","body":"Tolerances for each ingredient in an explosive, which are expressed as a percentage of the total explosive, shall not exceed the following:\n(a) Physical sensitizers: The tolerances established by the applicant;\n(b) Aluminum: ±0.7 percent;\n(c) Carbonaceous materials: ±3 percent; and\n(d) Moisture and ingredients other than specified in paragraphs (a), (b), and (c) of this section: The tolerances specified in Table II.\nTable II—Tolerances for Moisture and Other Ingredients\nQuantity of ingredients (as percent of total explosive or sheath) Tolerance percent\n0 to 5.0 1.2\n5.1 to 10.0 1.5\n10.1 to 20.0 1.7\n20.1 to 30.0 2.0\n30.1 to 40.0 2.3\n40.1 to 50.0 2.5\n50.1 to 55.0 2.8\n55.1 to 100.0 3.0","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS","PART 15—REQUIREMENTS FOR APPROVAL OF EXPLOSIVES AND SHEATHED EXPLOSIVE UNITS","Subpart B—Requirements for Approval of Explosives"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"ac3b98f95c8efdfa85634b48ecf77a63ba416c838902ef09d627e3d412e37b8b","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-15.20","next":"us/30-cfr-15.22"},"notice":"GroundRules: Original legal text. Not legal advice."}