GB/Z 42358-2023铁矿石波长色散X射线荧光光谱仪精度的测定国家标准
英文:Iron ores—Wavelength dispersive X-ray fluorescence spectrometers—Determination of precision GB/Z 42358-2023介绍: 国家标准《铁...
英文:Iron ores—Wavelength dispersive X-ray fluorescence spectrometers—Determination of precision GB/Z 42358-2023介绍: 国家标准《铁...
英文:Methods for chemical analysis of gold ores—Part 8: Determination of sulfur content GB/T 20899.8-2022介绍: 国家标准《金矿石化学分析方...
英文:Methods for chemical analysis of gold concentrates—Part 7: Determination of iron content GB/T 7739.7-2022介绍: 国家标准《金精矿...
英文:Methods for chemical analysis of gold ores—Part 7: Determination of iron content GB/T 20899.7-2022介绍: 国家标准《金矿石化学分析方法 ...
英文:Methods for chemical analysis of gold concentrates—Part 8: Determination of sulfur content GB/T 7739.8-2022介绍: 国家标准《金...
英文:Methods for chemical analysis of tungsten ores and molybdenum ores—Part 24: Determination of germanium conten—Inducti...
英文:Codes for comprehensive utilization of mineral resources GB/T 42249-2022介绍: 国家标准《矿产资源综合利用技术指标及其计算方法》由TC93(全国自然资源与国土空间...
英文:Direct reduced iron—Determination of metallic iron—Bromine-methanol titrimetric method GB/T 38812.4-2022介绍: 国家标准《直接还原...
英文:Iron ores—Determination of carbon and sulfur content—High frequency combustion with infrared absorption method GB/T 6...
英文:Iron ores—Determination of loss on ignition—Gravimetric method corrected by hygroscopic water GB/T 6730.83-2022介绍: 国家...