GB/T 13241-1991 Replaced National standards

GB/T 13241-1991 Iron ores—Determination of reducibility

Publish Date: 1991-11-06 Implement Date: 1992-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 13241-1991

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Iron ore

ICS Name: \nMetal ores

Publish Date: 1991-11-06

Implement Date: 1992-07-01

Publisher: The National Technical Supervision Bureau

Pages: 10 pages

Development Information

Drafting Units:

Bao'an Iron and Steel Rare Earth Company and Changsha Black Metallurgy Mine Design and Research Institute

Word Count: 17 Thousand words Pages: 10 pages

Superseded by the following standards

GB/T 13241-2017 Iron ores—Determination of reducibility

Referenced Standards

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 6003.3-1999 Test sieves of electroformed sheets GB/T 6005-1997 Test sieves—Metal wire cloth, perforated metal plate and electroformed sheet—Nominal sizes of opening GB/T 6005-2008 Test sieves—Metal wire cloth,perforated metal plate and electroformed sheet—Nominal sizes of openings GB/T 6730.4-1986 Methods for chemical analysis of iron ores The stannous chloride-mercuric chloride-potassium dichromate volumetric method for the determination of total iron content 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 6730.8-1986 Methods for chemical analysis of iron ores The potassium dichromate volumetric method for the determination of iron (Ⅱ) content GB/T 6730.8-2016 Iron ores—Determination of iron(Ⅱ) content—Potassium dichromate titrimetric method GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10122-1988 Iron ores (sinter and pellets)—Sampling and sample preparation for physical testing

Adopt standards

ISO 4695-1984

Related Standards

GB/T 3714-1983 Replaced

GB/T 3714-1983 Technical requirements of manganese carbonate ore powder

Publish Date: 1983-05-24

GB/T 4414-1984 Replaced

GB/T 4414-1984 Methods of sampling and sample preparation of tungsten concentrates in bags

Publish Date: 1984-05-29

GB/T 6150.10-1985 Replaced

GB/T 6150.10-1985 Methods for chemical analysis of tungsten concentrates—The thiocyanate photometric method for the determination of molybdenum content

Publish Date: 1985-06-21

GB/T 6150.11-1985 Replaced

GB/T 6150.11-1985 Methods for chemical analysis of tungsten concentrates—The atomic absorption spectrophotometric method for the determination of copper content

Publish Date: 1985-06-21

GB/T 6150.1-1985 Replaced

GB/T 6150.1-1985 Methods for chemical analysis of tungsten concentrates—The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content

Publish Date: 1985-06-21

GB/T 6150.12-1985 Replaced

GB/T 6150.12-1985 Methods for chemical analysis of tungsten concentrates—The hydrochloric acid-sodium chloride supporting electrolyte polarographic method for the determination of lead content

Publish Date: 1985-06-21