Home / Standards / GB/T 27698.1 GB/T 27698.1 Active Test methods for performance of heat exchangers and heat transfer elements — Part 1: General requirements 热交换器及传热元件性能测试方法 第1部分:通用要求 Standard Type GBT ICS 27.060.30 CCS J75 Status 现行 Issue Date 2024-09-02 Implementation 2023-05-23 Responsible Dept N/A Drafting Unit N/A