GB/T 4103.12-2012Methods for chemical analysis of lead and lead alloys - Part 12: Determination of thallium content (English PDF)
铅及铅合金化学分析方法 第12部分：铊量的测定
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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 4103.12-2012 is the English-translated version of 铅及铅合金化学分析方法 第12部分：铊量的测定.
GB/T 4103.12-2012 is the Chinese standard "Methods for chemical analysis of lead and lead alloys - Part 12: Determination of thallium content". Its scope clause reads: This section GB/T 4103 provisions of the determination of lead and lead alloy thallium content.
This section applies to the determination of lead and lead alloy thallium content. Its clauses include general; crystal violet spectrophotometric method.
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Document preview — GB/T 4103.12-2012
National Standard of the People's Republic of China
- ICS
- 77.120.60
- Classification
- H 13
- Replacing
- GB/T 4103.12-2000
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 General
- 4 crystal violet spectrophotometric method
1 Scope
This section GB/T 4103 provisions of the determination of lead and lead alloy thallium content.
This section applies to the determination of lead and lead alloy thallium content.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6682 analytical laboratory use specifications and test methods (ISO 3696)
GB/T 12806 laboratory glassware single marking flask (ISO 1042)
GB/T 12808 laboratory glassware single marking pipette (ISO 648)
GB/T 12809 Laboratory glassware Glass Container design and construction principles (ISO 384)
GB/T 12810 laboratory glassware gauge capacity calibration and use (ISO 4787)
3 General
3.1
Unless otherwise stated, the use of analytical reagent only recognized in the analysis; the water is distilled or deionized water or equivalent purity,
Shall comply with the provisions of GB/T 6682's.
3.2
instruments shall be within the test cycle, the performance indicators should meet the technical parameters required for verification; glass containers GB/T 12808,
GB/T 12809, GB/T 12806 specified in Class A, with reference to the specific use requirements GB/T 12810 in.
4 crystal violet spectrophotometric method
4.1 Determination of Range
This section applies to the determination of lead and lead alloys thallium content was measured in the range of 0.0002% to 0.010% (mass fraction).
4.2 Principle
Sample decomposition with nitric acid and hydrochloric acid, of lead generation lead chloride precipitation. Crystal violet and thallium (III) reaction to form a colored complex, hydrochloric acid (0.12mol/L) medium was extracted with iso-amyl acetate, in the spectrophotometer at 595nm wavelength measured absorbance.
4.3 Reagents
4.3.1
over anhydrous sodium sulfate.
4.3.2
Sodium chloride, pure class distinctions.
4.3.3
Potassium.
4.3.4
ammonium chloride.
......
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 4103.12
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4103.12-2012 | Methods for chemical analysis of lead and lead alloys - Part 12: Determination of thallium content | current edition | Current |
| GB/T 4103.12-2000 | Methods for chemical analysis of lead and lead alloys - Part 12: Determination of thallium content | previous edition | Superseded |
This page sells the current edition, GB/T 4103.12-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 4103.1-2012 — Methods for chemical analysis of lead and lead alloys - Part 1: Determination of tin content
GB/T 4103.10-2012 — Methods for chemical analysis of lead and lead alloys - Part 10: Determination of silver content
GB/T 4103.11-2012 — Methods for chemical analysis of lead and lead alloys - Part 11: Determination of zinc content
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