GB/T 4103.4-2012Methods for chemical analysis of lead and lead alloys - Part 4: Determination of iron content (English PDF)
铅及铅合金化学分析方法 第4部分：铁量的测定
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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 4103.4-2012 is the English-translated version of 铅及铅合金化学分析方法 第4部分：铁量的测定.
GB/T 4103.4-2012 is the Chinese standard "Methods for chemical analysis of lead and lead alloys - Part 4: Determination of iron content". Its scope clause reads: This section GB/T 4013 provisions of the determination of lead and lead alloys in iron content.
This section applies to the determination of lead and lead alloy iron content. Its clauses include general; flame atomic absorption spectrometry.
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Document preview — GB/T 4103.4-2012
National Standard of the People's Republic of China
- ICS
- 77.120.60
- Classification
- H 13
- Replacing
- GB/T 4103.4-2000
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 General
- 4 Flame Atomic Absorption Spectrometry
1 Scope
This section GB/T 4013 provisions of the determination of lead and lead alloys in iron content.
This section applies to the determination of lead and lead alloy iron 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 superior grade pure reagents identified only 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 Flame Atomic Absorption Spectrometry
4.1 Determination of Range
Determination of iron content in the range of 0.0002% to 0.050% (mass fraction).
4.2 Principle
Sample dissolved in nitric acid (wFe < 0.001%, lead to form lead sulfate precipitation and separation of iron) in acid medium, with air - acetylene fire
Flame atomic absorption spectrometer measured at a wavelength of 248.3nm iron absorbance when the sample contains a large amount of tin, antimony, plus Na2EDTA, lemon
Lemon and ammonium tartrate solubilization and prevent hydrolysis.
4.3 Reagents
4.3.1
tartaric acid.
4.3.2
citric acid.
4.3.3
nitrate (rho1.42g/mL).
......
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 4103.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4103.4-2012 | Methods for chemical analysis of lead and lead alloys - Part 4: Determination of iron content | current edition | Current |
| GB/T 4103.4-2000 | Methods for chemical analysis of lead and lead alloys - Part 4: Determination of iron content | previous edition | Superseded |
This page sells the current edition, GB/T 4103.4-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 4103.5-2012 — Methods for chemical analysis of lead and lead alloys - Part 5: Determination of bismuth content
GB/T 4103.3-2000 — Methods for chemical analysis of lead and lead alloys Determination of copper content
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