Home / Standards / GB/T 18950 GB/T 18950 Active Rubber and plastics hoses—Methods of exposure to laboratory light sources—Determination of changes in colour, appearance and other physical properties 橡胶和塑料软管 实验室光源暴露试验法 颜色、外观和其他物理性能变化的测定 Standard Type GBT ICS 23.040.70 CCS G42 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit 中国石油和化学工业联合会