组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 6730.72-2016
Iron ores—Determination of arsenic, chromium, cadmium, lead and mercury content—Inductively coupled plasma-mass spectrometry method (ICP-MS)
GB/T 31923.2-2015
Iron ores for blast furnace feedstocks—Determinaction of low-temperature reduction-disintegration indices by static method—Part 2: Reduction with CO and N2
GB/T 31923.1-2015
Iron ores for blast furnace feedstocks—Determination of low-temperature reduction-disintegration indices by static method—Part 1: Reduction with CO、CO2、H2 and N2
GB/T 31949-2015
Manganese ores—Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 31948-2015
Chromium ores—Determination of mercury content— Solid sampling and direct mercury analysis method
GB/T 31947-2015
Iron ores—Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 14353.18-2014
Methods for chemical analysis of copper ores, lead ores and zinc ores―Part 18: Determination of copper content、lead content、zinc content、cobalt content and nickel content
GB/T 14353.17-2014
Methods for chemical analysis of copper ores, lead ores and zinc ores―Part 17: Determination of thallium content
GB/T 14353.15-2014
Methods for chemical analysis of copper ores, lead ores and zinc ores―Part 15: Determination of selenium content
GB/T 14353.14-2014
Methods for chemical analysis of copper ores, lead ores and zinc ores—Part 14: Determination of germanium content
GB/T 14353.13-2014
Methods for chemical analysis of copper ores, lead ores and zinc ores―Part 13: Determination of gallium content、indium content、thallium content、tungsten content and molybdenum content
GB/T 6730.10-2014
Iron ores―Determination of silicon content―Gravimetric methods
GB/T 6730.17-2014
Iron ores―Determination of sulfur content―Combustion iodometric method
GB/T 10322.4-2014
Iron ores―Experimental methods for checking the bias of sampling
GB/T 10322.1-2014
Iron ores—Sampling and sample preparation procedures
GB/T 6730.71-2014
Iron ores―Determination of acid-soluble iron(II) content―Titrimetric method
GB/T 29653-2013
Manganese ores - Determination of size distribution by sieving
GB/T 29652-2013
Direct reduced iron - Determination of carbon and sulfur - High frequency combustion with infrared absorption method
GB/T 29651-2013
Manganese ores and concentrates - Determination of total iron content - Flame atomic absorption spectrometric method
GB/T 6730.70-2013
Iron ores - Determination of total iron content - Titrimetric method after tin(Ⅱ) chloride reduction