Home / Standards / GB/T 46248-2025 GB/T 46248-2025 Active Test method for heat loss coefficient of parabolic trough solar receiver tube 槽式太阳能集热管热损系数测试方法 Standard Type GBT ICS 27.160 CCS F12 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 国家标准委 Drafting Unit N/A