Home / Standards / GB/T 42919.2-2025 GB/T 42919.2-2025 Upcoming Plastics—Determination of thermal conductivity and thermal diffusivity—Part 2: Transient plane heat source (hot disc) method 塑料 导热系数和热扩散系数的测定 第2部分:瞬态平面热源(热盘)法 Standard Type GBT ICS 83.080.01 CCS G31 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A