GB/T 4324.11-2012Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry (English PDF)
钨化学分析方法 第11部分：铝量的测定 电感耦合等离子体原子发射光谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2012
Implementation date
October 1, 2013
Scope
GB/T 4324.11-2012 is the English-translated version of 钨化学分析方法 第11部分：铝量的测定 电感耦合等离子体原子发射光谱法.
GB/T 4324.11-2012 is the Chinese standard "Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry".
Its scope clause reads: This section GB/T 4324 provisions of the tungsten powder, tungsten trioxide, tungsten, tungsten oxide blue, purple tungsten oxide, tungsten carbide, tungsten acid, partial acid Ammonium paratungstate determination of aluminum content.
This Part applies to tungsten powder, tungsten trioxide, tungsten, tungsten oxide blue, purple tungsten oxide, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate Determination of aluminum content.
Determination range of 0.0005% to 0.050%. Its clauses include method summary; reagents; instrument; sample.
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Document preview — GB/T 4324.11-2012
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 63
- Replacing
- GB/T 4324.11-1984
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Method summary
- 3 Reagents
- 4 Instrument
- 5 Sample
1 Scope
This section GB/T 4324 provisions of the tungsten powder, tungsten trioxide, tungsten, tungsten oxide blue, purple tungsten oxide, tungsten carbide, tungsten acid, partial acid
Ammonium paratungstate determination of aluminum content.
This Part applies to tungsten powder, tungsten trioxide, tungsten, tungsten oxide blue, purple tungsten oxide, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate
Determination of aluminum content. Determination range of 0.0005% to 0.050%.
2 Method summary
Microwave digestion sample was decomposed body after acidification with hydrochloric acid precipitation tungsten, argon plasma excitation light source directly after filtration, spectral
Determination.
3 Reagents
Unless otherwise indicated, as used in the analysis confirmed that only pure reagents superior grade and distilled or deionized water or equivalent purity.
3.1
Hydrogen peroxide (rho = 1.10g/mL).
3.2
hydrochloric acid (rho = 1.19g/mL).
3.3
ammonia, MOS level.
3.4
hydrochloric acid (119).
3.5
hydrochloric acid wash (149).
3.6 standard aluminum stock solution
Weigh 0.1000g of aluminum [wAl>=99.99%], placed in 200mL beaker, add 20mL hydrochloric acid (3.2), completely dissolved by heating and then cooled and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution containing 1mL
100µg aluminum.
3.7 aluminum standard solution
Pipette 10.00mL aluminum standard stock solution (3.6) in 100mL volumetric flask (3.4) diluted to the mark with hydrochloric acid
Degree, this solution 1mL containing 10µg aluminum.
3.8 Argon
volume fraction of greater than 99.99%.
4 Instrument
4.1 Inductively Coupled Plasma Emission Spectrometer
resolution of less than 0.006nm (200nm office).
4.2
microwave digestion.
5 Sample
Tungsten and shall crush through the 0.125mm sieve.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 4324.11
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4324.11-2012 | Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry | current edition | Current |
| GB/T 4324.11-1984 | Methods for chemical analysis of tungsten - Part 11: Determination of aluminum content - Inductively coupled plasma atomic emission spectrometry | previous edition | Superseded |
This page sells the current edition, GB/T 4324.11-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 4324.1-2012 — Methods for chemical analysis of tungsten - Part 1: Determination of lead content - Flame atomic absorption spectrometry
GB/T 4324.10-2012 — Methods for chemical analysis of tungsten - Part 10: Determination of copper content - Flame atomic absorption spectrometry
GB/T 4324.12-2012 — Methods for chemical analysis of tungsten - Part 12: Determination of silicon content - Chlorization-molybdenum blue spectrophotometry
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