Home / Standards / GB/T 2539-2023 GB/T 2539-2023 Active Determination of melting point of petroleum waxes—Cooling curve method 石油蜡熔点的测定 冷却曲线法 Standard Type GBT ICS 75.140 CCS E42 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 国家标准委 Drafting Unit N/A