GB/T 24235-2009 Iron ores for shaft direct-reduction feedstocks—Determination of the low temperature reduction-disintegration index and degree of metallization

ISO 9686 GB/T 6003.1-1997 Test sieves of metal wire cloth GB/T 6003.1-2012 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.1-2022 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.2-1997 Test sieves of perforated metal plate GB/T 6003.2-2012 Test sieves—Technical requirements and testing—Part 2:Test sieves of metal wire cloth GB/T 6003.2-2024 Test sieves—Technical requirements and testing—Part 2:Test sieves of perforated metal plate GB/T 6730.5-1986 Methods for chemical analysis of iron ores The titanium chloride-potassium dichromate volumetric method for the determination of total iron content GB/T 6730.5-2007 Iron ores—Determination of total iron content—Titanium(Ⅲ)chloride reduction methods GB/T 6730.5-2022 Iron ores—Determination of total iron content—Titrimetric methods after titanium(Ⅲ) chloride reduction GB/T 6730.6-1986 Methods for chemical analysis of iron ores The ferric chloride-sodium acetate volumetric method for the determination of metallic iron content GB/T 6730.6-2016 Iron ores—Determination of metallic iron content—Ferric chloride-sodium acetate titrimetric method GB/T 6730.7-1986 Methods for chemical analysis of iron ores The sulfosalicylic acid photometric method for the determination of metallic iron content GB/T 6730.7-2016 Iron ores—Determination of metallic iron content—Sulfosalicylic acid spectrophotometric method GB/T 10122-1988 Iron ores (sinter and pellets)—Sampling and sample preparation for physical testing GB/T 10322.1-2000 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2014 Iron ores—Sampling and sample preparation procedures GB/T 10322.1-2023 Iron ores—Sampling and sample preparation procedures GB/T 10322.7-2004 Iron ore—Determination of size distribution by sieving GB/T 10322.7-2016 Iron ores and direct reduced iron—Determination of size distribution by sieving GB/T 20565-2006 Iron ores and direct reduced iron—Vocabulary GB/T 20565-2022 Iron ores and direct reduced iron—Vocabulary

ISO 11257:2007