{"data":{"id":"us/30-cfr-57.7807","jurisdiction":"us","citation":"30 CFR 57.7807","heading":"Flushing the combustion chamber.","body":"The combustion chamber of a jet drill stem which has been sitting unoperated in a drill hole shall be flushed with a suitable solvent after the stem is pulled up.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES","Subpart F—Drilling and Rotary Jet Piercing"],"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":"279676f5466d1bbbfd31bbb7a28f1ef164e2aad65dc7f19b98b89b76af76d7e2","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-57.7806","next":"us/30-cfr-57.8518"},"notice":"GroundRules: Original legal text. Not legal advice."}