Home / Standards / GB/T 5195.11-2021 GB/T 5195.11-2021 Active Fluorspar—Determination of manganese content—Periodate spectrophotometry and flame atomic absorption spectrometry 萤石 锰含量的测定 高碘酸盐分光光度法和火焰原子吸收光谱法 Standard Type GBT ICS 73.080 CCS D52 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A