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BS ISO 4939-2016 钢镍的测定丁二酮肟分光光度法 Steel. Determination of nickel. Dimethylglyoxime spectrophot...2023-09-21

GB/T 20931.9-2007 锂化学分析方法氮量的测定碘化汞钾分光光度法 Methods for chemical analysis of lithium--Det...2023-09-01

GB/T 223.63-2022 钢铁及合金锰含量的测定高碘酸钠（钾）分光光度法 Iron, steel and alloy-Determination of mangane...2023-08-21

GB/T 7729-2021 冶金产品化学分析分光光度法通则 Chemical analysis of metallurgical products-General rule for ...2023-08-18

GB/T 223.37-2020 钢铁及合金氮含量的测定蒸馏分离靛酚蓝分光光度法 Iron, steel and alloy-Determination of nit...2023-07-08

BS ISO 19043-2015 浓缩天然胶乳用分光光度法测定总磷酸盐含量 Natural rubber latex concentrate. Determination ...2023-07-01

GB/T 39302-2020 再生水水质阴离子表面活性剂的测定亚甲蓝分光光度法 Reclaimed water quality—Determinati...2023-06-07

HY/T 0344-2022 海水中痕量活性磷酸盐的测定流动分析-磷钼蓝固相萃取-分光光度法 Determination of seawater trace...2023-05-18

DIN EN ISO 4945-2019 Steel - Determination of nitrogen - Spectrophotometric method (ISO 4945:2018); German ...2023-05-16

GB/T 223.91-2021 钢铁及合金铜含量的测定 2，2'-联喹啉分光光度法 Iron, steel and alloy—Determinatio...2023-05-06

HJ 917-2017 固定污染源废气气态汞的测定活性碳吸附/热裂解原子吸收分光光度法 Stationary source emission-Deter...2023-05-04

GB/T 7731.5-2021钨铁硅含量的测定硅钼蓝分光光度法Ferrotungsten. Determination of silicon content. Silicomol...2022-10-24

GB/T 223.91-2021钢铁及合金铜含量的测定 2，2'-联喹啉分光光度法Iron, steel and alloy. Determination of copper. ...2022-10-24

GB/T 6730.48-2021铁矿石铋含量的测定二硫代二安替吡啉甲烷分光光度法Iron ores—Determination of bismuth conte...2022-10-25

GB/T 14571.4-2022工业用乙二醇试验方法第4部分：紫外透光率的测定紫外分光光度法Test method of ethylene glycol f...2022-10-27