GB/T 24221-2009 Active National standards

GB/T 24221-2009 Chromium ores—Determination of calcium and magnesium contents—EDTA titrimetric method

GB/T 24221-2009 Chromium ores—Determination of calcium and magnesium contents—EDTA titrimetric method

Publish Date: 2009-07-15 Implement Date: 2010-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 24221-2009

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: \nChromite ore

ICS Name: \nChromite ore

Publish Date: 2009-07-15

Implement Date: 2010-04-01

Pages: 9 pages

Scope

This standard specifies the EDTA titration method for determining the calcium and magnesium content in chromite ore. This standard is applicable to the determination of calcium and magnesium content in chromite ore. The measurement range (mass fraction): calcium 0.1%~3.20%, magnesium 3.0%~12.00%. This standard shall comply with the relevant provisions of GB/T 24228.

Development Information

Word Count: 16 Thousand words Pages: 9 pages

Referenced Standards

ISO 6154 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 12805-1991 Laboratory glassware—Burettes GB/T 12805-2011 Laboratory glassware—Burettes 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 GB/T 24228-2009 Chromium ores and concentrates—Methods of chemical analysis—General instruction GB/T 24220-2009 Chromium ores—Determination of hygroscopic moisture content in analytical samples—Gravimetric method GB/T 24243-2009 Chromium ores—Increment sampling

Adopt standards

ISO 5975:1983

Related Standards

GB/T 24192-2009 Active

GB/T 24192-2009 Chromium ores—Determination of particle size by sieving

Publish Date: 2009-07-08

GB/T 24193-2009 Active

GB/T 24193-2009 Chromium ores and concentrates—Determination of aluminium,iron,magnesium and silicon content—Inductively coupled plasma atomic emission spectrometry

Publish Date: 2009-07-08

GB/T 24220-2009 Active

GB/T 24220-2009 Chromium ores—Determination of hygroscopic moisture content in analytical samples—Gravimetric method

Publish Date: 2009-07-15

GB/T 24222-2009 Active

GB/T 24222-2009 Chromium ores—Determination of moisture of lots

Publish Date: 2009-07-15

GB/T 24223-2009 Active

GB/T 24223-2009 Chromium ores—Determination of phosphorus content—Reduced molybdophosphate photometric method

Publish Date: 2009-07-15

GB/T 24224-2009 Active

GB/T 24224-2009 Chromium ores—Determination of sulfur content—Combustion-neutralization titration method,combustion-potassium iodate titration method and combustion-infrared absorption method

Publish Date: 2009-07-15