Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM A674-05
• Năm ban hành / Publication date: 2005
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Practice for Polyethylene Encasement for Ductile Iron Pipe for Water or Other Liquids
• Số trang / Page: 7
• Phạm vi áp dụng / Scope of standard: 1.1 This practice covers materials and installation procedures for polyethylene encasement to be applied to underground installations of ductile iron pipe. It may also be used for polyethylene encasement of fittings, valves, and other appurtenances to ductile iron pipe systems.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.