GB/T 6730.24-2006 Active National standards

GB/T 6730.24-2006 Iron ores—Determination of total rare earth contents—Chlorophosphonazo mA spectrophotometric method

GB/T 6730.24-2006 Iron ores—Determination of total rare earth contents—Chlorophosphonazo mA spectrophotometric method

Publish Date: 2006-11-01 Implement Date: 2007-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 6730.24-2006

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Iron ore

ICS Name: Iron ore

Publish Date: 2006-11-01

Implement Date: 2007-02-01

Pages: 7 pages

Scope

This part of GB/T 6730 specifies the determination of the total rare earth content in natural iron ores, iron concentrates, and lump ores, including sintered products, by the mA spectrophotometric method of azobenzene chlorophosphonate. This part is applicable to the determination of the total rare earth content (expressed as oxides) in natural iron ores, iron concentrates, and lump ores. The determination range (mass fraction) is 0.020~1.00%.

Development Information

Word Count: 10 Thousand words Pages: 7 pages

Same series standard

GB/T 6730.9-2006 Iron ores—Determination of silicon contents—The silicomolybdic blue spectrophotometric method reduce by ammonium ferrous sulfate GB/T 6730.18-2006 Iron ores—Determination of phosphorus content—Molybdenum blue spectrophotometric method GB/T 6730.23-2006 Iron ores—Determination of titanium content—The ferric ammonium sulfate titrimetric method GB/T 6730.25-2006 Iron ores—Determination of total rare earth contents—Oxalate gravimetric method GB/T 6730.28-2006 Iron ores—Determination of fluorine content—Ion-selective electrode method GB/T 6730.45-2006 Iron ores—Determination of arsenic content—Arseno-molybdenum blue spectrophotometric method after hydrogen arsenide separation GB/T 6730.46-2006 Iron ores—Determination of arsenic content—Arseno-molybdenum blue spectrophotometric method after the distillation separation GB/T 6730.63-2006 Iron ores—Determination of aluminum,calcium,magnesium,manganese,phosphorus,silicon and titanium content—Inductively coupled plasma atomic emission spectrometric method

Replace the following standards

GB/T 6730.24-1986 Methods for chemical analysis of iron ores The arsenazo Ⅲ photometric method for the determination of rare earth elements content

Superseded by the following standards

GB/T 6730.24-2025 Iron ores—Determination of total rare earth contents—Arsenazo Ⅲ spectrophotometric method

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 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 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