GB/T 6609.12-2018 in English
VALIDChemical analysis methods and determination of physical performance of alumina—Part 12:Determination of zinc oxide content—Flame atomic absorption spectrometry method
- Issued on:2015-05-14
- Implemented on:2019-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 6609.12-2018氧化铝化学分析方法和物理性能测定方法 第12部分：氧化锌含量的测定 火焰原子吸收光谱法》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。
Introduction
GB/T 6609.12—2018 Standard Overview
| Standard Framework Dimensions | Description | Comparative Analysis |
|---|---|---|
| Measurement Range | Zinc Oxide Content$0.0010\% \sim 0.040\%$ | Compared with the old version, the scope of application has been significantly expanded. |
| Measurement Method | Flame Atomic Absorption Spectrometry | Retain traditional advantages and introduce new instrument and equipment requirements. |
| Reagents and instruments | PTFE sealed sample dissolver, high-precision atomic absorption spectrometer, etc. | Add technical indicators and requirements for instruments and equipment to improve accuracy. |
Standard formulation background and technology evolution analysis
The GB/T 6609.12 series of standards has been revised many times since its first release in 1986, reflecting the technological progress in the field of alumina chemical analysis. This revision mainly aims at the expansion of the measurement range, the improvement of instrument and equipment requirements, and the optimization of experimental steps.
Analysis of core changes
- Expansion of measurement range: The new version of the standard expands the measurement range of zinc oxide content from $0.0004\% \sim 0.0200\%$ to $0.0010\% \sim 0.040\%$, significantly improving the breadth of application of the method.
- Requirements for instruments and equipment: A new diagram of the polytetrafluoroethylene sealed sample dissolver device is added, and higher requirements are put forward for the characteristic concentration, precision and linearity of the working curve of the atomic absorption spectrometer.
- Optimization of experimental steps: The introduction of aluminum matrix compensation technology effectively eliminates the interference of aluminum elements and improves the accuracy of the measurement results.
Implementation Suggestions
To ensure the effective implementation of GB/T 6609.12—2018 standard, the following suggestions are made:
- Equipment calibration: Regularly calibrate the atomic absorption spectrometer to ensure that its performance indicators meet the requirements.
- Staff training: Organize relevant personnel to participate in standard interpretation and technical training to improve operational level.
- Quality control: Establish a quality assurance system and regularly use standard samples for calibration to ensure the reliability of measurement results.
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