{"data":{"id":"us/40-cfr-appendix-i-to-part-261","jurisdiction":"us","citation":"40 CFR Appendix I to Part 261","heading":"Appendix I to Part 261—Representative Sampling Methods","body":"The methods and equipment used for sampling waste materials will vary with the form and consistency of the waste materials to be sampled. Samples collected using the sampling protocols listed below, for sampling waste with properties similar to the indicated materials, will be considered by the Agency to be representative of the waste.\nExtremely viscous liquid—ASTM Standard D140-70 Crushed or powdered material—ASTM Standard D346-75 Soil or rock-like material—ASTM Standard D420-69 Soil-like material—ASTM Standard D1452-65\nFly Ash-like material—ASTM Standard D2234-76 [ASTM Standards are available from ASTM, 1916 Race St., Philadelphia, PA 19103]\nContainerized liquid waste—“COLIWASA.”\nLiquid waste in pits, ponds, lagoons, and similar reservoirs—“Pond Sampler.”\nThis manual also contains additional information on application of these protocols.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER I—SOLID WASTES","PART 261—IDENTIFICATION AND LISTING OF HAZARDOUS WASTE"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"378a1c5666a18873b010ead256c045b350c6c9f65912affa06d8c77e7ba7e072","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-261.1090","next":"us/40-cfr-appendixes-ii-iii-to-part-261"},"notice":"GroundRules: Original legal text. Not legal advice."}