Home / Standards / GB/T 4272-2024 GB/T 4272-2024 Active General principles of thermal insulation technique for equipment and pipes 设备及管道绝热技术通则 Standard Type GBT ICS 27.010 CCS F04 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 国家标准委 Drafting Unit N/A