Home / Standards / GB/T 258-2025 GB/T 258-2025 Active Determination of acidity of light petroleum products 轻质石油产品酸度的测定 Standard Type GBT ICS 75.160.20 CCS E31 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 国家标准委 Drafting Unit N/A