GB/T 33353-2016 in English
VALIDDetermination of restricted substances including tributyltin and triphenyltin in electrical and electronic products--Gas chromatography-mass spectrometry
- Issued on:2016-12-13
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 33353-2016电子电气产品中的限用物质三丁基锡和三苯基锡的测定 气相色谱-质谱法》由TC297（全国电工电子产品与系统的环境标准化技术委员会）归口，TC297SC3（全国电工电子产品与系统的环境标准化技术委员会有害物质检测方法分会）执行，主管部门为国家标准化管理委员会。
Introduction
1. Standard Overview
GB/T 33353-2016 "Determination of Tributyltin and Triphenyltin in Electrical and Electronic Products - Restricted Substances - Gas Chromatography-Mass Spectrometry" is a Chinese national standard that specifies the method of using gas chromatography-mass spectrometry (GC-MS) to detect tributyltin and triphenyltin in electrical and electronic products. The standard was officially implemented on July 1, 2017 and is applicable to the quality control and environmental monitoring of related products.
2. Background of Standard Formulation
With the global emphasis on environmental protection, the detection of hazardous substances in electrical and electronic products has become an important issue. Tributyltin and triphenyltin are listed as restricted substances due to their toxicity and their wide application in electronic products. The formulation of this standard aims to provide scientific and reliable detection methods for related industries to ensure that product quality meets environmental protection requirements.
3. Analysis of Technological Evolution
Traditional detection methods have problems such as low sensitivity and poor selectivity. GC-MS technology combines the high separation efficiency of gas chromatography and the high sensitivity of mass spectrometry, and can accurately determine trace amounts of harmful substances. It is one of the most advanced and efficient detection methods currently available.
4. Comparison of standard frameworks
| Standard dimensions | GB/T 33353-2016 | International alignment | Scope of application |
|---|---|---|---|
| Detection method | Gas chromatography-mass spectrometry (GC-MS) | Comply with ISO standard requirements | Electronic and electrical products |
| Detection limit | 5 mg/kg | International alignment | Tributyltin and triphenyltin |
| Precision requirements | ±20% | Higher than some national standards | Laboratory environmental monitoring |
5. Implementation suggestions
Case study: Application practice of an electronic manufacturing company
An electronic manufacturing company adopted the GB/T 33353-2016 standard in the production process and established a complete testing system:
- Purchase dedicated GC-MS equipment and train professional technicians.
- Optimize sample pretreatment process and improve detection efficiency.
- Cooperate with international laboratories to verify the accuracy of the method.
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