Search China standards English version for paratungstate

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Database: 365,228(8 Aug 2026)

GB 50011 maximum residue limits marine electric three-spindle screw pump leaf spot hexagon thin type traditional railway high-speed railway upgrade points foreign data centerinfrastructure introduction standard framework ultra pure krypton scopethis document

SN/T 0951-2010 in English

Determination of tungsten trioxide content in ammonium paratungstate for import and export

VALID

Issued on:2010-05-27 | Implemented on:2010-12-01

$120.00 $117.00
GB/T 10116-1988 in English

Ammonium paratungstate

SUPERSEDED

Issued on:1988-01-02 | Implemented on:1989-01-02

$180.00 $175.00
GB/T 10116-2007 in English

Ammonium paratungstate

VALID

Issued on:1988-12-10 | Implemented on:2008-06-01

$100.00 $97.00
GB/T 4324.1-2012 in English

Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$120.00 $117.00
GB/T 4324.10-2012 in English

Methods for chemical analysis of tungsten—Part 10:Determination of copper content—Flame atomic absorption spectrometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$120.00 $117.00
GB/T 4324.11-2012 in English

Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$120.00 $117.00
GB/T 4324.12-2012 in English

Methods for chemical analysis of tungsten - Part 12: Determination of silicon content - Chlorization-molybdenum blue spectrophotometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$160.00 $156.00
GB/T 4324.15-2008 in English

Methods for chemical analysis of tungsten - Determination of magnesium content - The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry

VALID

Issued on:2008-06-09 | Implemented on:2008-12-01

$120.00 $117.00
GB/T 4324.17-2012 in English

Methods for chemical analysis of tungsten - Part 17: Determination of sodium content - Flame atomic absorption spectrometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$120.00 $117.00
GB/T 4324.18-2012 in English

Methods for chemical analysis of tungsten - Part 18: Determination of potassium content - Flame atomic absorption spectrometry

VALID

Issued on:2012-12-31 | Implemented on:2013-10-01

$120.00 $117.00

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