GB/T 6730.48-2021 Active National standards

GB/T 6730.48-2021 Iron ores—Determination of bismuth content—Dithiodiantipyryl methane spectrophotometric method

GB/T 6730.48-2021 Iron ores—Determination of bismuth content—Dithiodiantipyryl methane spectrophotometric method

Publish Date: 2021-12-31 Implement Date: 2022-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 6730.48-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Iron ore

ICS Name: Iron ore

Publish Date: 2021-12-31

Implement Date: 2022-07-01

Pages: 12 pages

Scope

This document specifies the method for determining the bismuth content using the spectrophotometric method of dithiodiglycoluril methane. This document is applicable to the determination of bismuth content in iron ores, iron concentrates, and lump ores, including sintered products. The measurement range (mass fraction) is 0.002% to 0.200%.

Development Information

Word Count: 24 Thousand words Pages: 12 pages

Same series standard

GB/T 6730.25-2021 Iron ores—Determination of total rare earth contents—Oxalate gravimetric method GB/T 6730.28-2021 Iron ores—Determination of fluorine content—Ion-selective electrode method

Replace the following standards

GB/T 6730.48-1986 Methods for chemical analysis of iron ores The dithio diantipyryl methane photometric method for the determination of bismuth content

Referenced Standards

GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 6730.1-1986 Methods for chemical analysis of iron ores—Preparation of predried test samples for chemical analysis GB/T 6730.1-2016 Iron ores—Preparation of predried test samples for chemical analysis GB/T 7729-2021 Chemical analysis of metallurgical products—General rule for spectrophotometric methods 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 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 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12807-1991 Laboratory glassware—Graduated pipettes GB/T 12807-2021 Laboratory glassware—Graduated pipettes GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes

Related Standards

GB/T 14849.2-1993 Replaced

GB/T 14849.2-1993 Silicon metal—Determination of aluminum content—Chrome azurol S spectrophotometric method

Publish Date: 1993-12-24

GB/T 10322.1-2000 Replaced

GB/T 10322.1-2000 Iron ores—Sampling and sample preparation procedures

Publish Date: 2000-06-05

GB/T 10322.2-2000 Active

GB/T 10322.2-2000 Iron ores—Experimental methods for evaluation of quality variation

Publish Date: 2000-06-05

GB/T 10322.3-2000 Replaced

GB/T 10322.3-2000 Iron ores—Experimental methods for checking the precision of sampling

Publish Date: 2000-06-05

GB/T 10322.4-2000 Replaced

GB/T 10322.4-2000 Iron ores—Experimental methods for checking the bias of sampling

Publish Date: 2000-06-05

GB/T 10322.5-2000 Replaced

GB/T 10322.5-2000 Iron ores—Determination of moisture content of a consignment

Publish Date: 2000-06-05