GB/T 40915-2021
Determination of SiO2,Al2O3,Fe2O3,K2O,Na2O,CaO,MgO content of soda-lime-silica glass by X-ray fluorescence spectrometric method
GB/T 27717-2011(\u82f1\u6587\u7248)
家具中富马酸二甲酯含量的测定
GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
KS M ISO 1689-2017
Sodium and potassium silicates for industrial use — Calculation of the ratio: silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
UNE 55624:1982
SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW-MATERIALS IN DETERGENT FORMULATIONS. CALCULATION OF THE RATIO SIO2/NA2O OR SIO2/K2O