Home / Standards / GB/T 39544-2020 GB/T 39544-2020 Active Natural rubber latex concentrate—Determination of total phosphate content—Spectrophotometric method 浓缩天然胶乳 总磷酸盐含量的测定 分光光度法 Standard Type GBT ICS 83.040.10 CCS B72 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A