GB/T 35446-2017 in English
VALIDTextiles―Determination of some organic solvents
- Issued on:2017-12-29
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 35446-2017纺织品 某些有机溶剂的测定》由TC209（全国纺织品标准化技术委员会）归口，TC209SC1（全国纺织品标准化技术委员会基础标准分会）执行，主管部门为中国纺织工业联合会。
Introduction
1. Overview and scope of application of the standard
GB/T 35446—2017 specifies the method of determining the residual amount of 9 organic solvents in textiles by gas chromatography-mass spectrometry (GC/MSD) or gas chromatography-hydrogen flame ionization detector (GC/FID), which is applicable to various textile products.
2. Background of standard formulation and analysis of technical evolution
This standard was proposed by the China National Textile and Apparel Council and is managed by the National Technical Committee for Textile Standardization. The background of its formulation is mainly based on:
- Global concern about the safety of textile products;
- Strict requirements for organic solvent residues in international trade;
- Insufficiency of existing detection methods and the need for improvement.
3. Comparative analysis of standard frameworks
| Dimensions | Characteristics of the old standard | Improvements of the new standard |
|---|---|---|
| Detection method | Single chromatographic technology | Combination of dual technologies (GC/MSD and GC/FID) to improve accuracy |
| Equipment requirements | Basic chromatographic equipment | High-sensitivity detectors (such as MSD and FID) to improve detection limits |
| Data processing | Simple qualitative analysis | Combining quantitative and qualitative analysis to support complex sample analysis |
4. Interpretation of the standard and implementation suggestions
Case analysis: Application of the standard in actual testing
A textile company used this standard to test a batch of imported fabrics and found that the residual content of ethylene glycol monomethyl ether was 12.5 mg/kg. By comparing it with the standard limit, it was confirmed that it met the requirements of international trade.
Implementation suggestions
- Equipment selection:Give priority to instruments equipped with GC/MSD and GC/FID to ensure detection sensitivity.
- Operator training:It is recommended to participate in professional training regularly to grasp the dynamics of standard revisions and the application of new technologies.
- Sample pretreatment: Strictly follow the ultrasonic extraction and rotary evaporation concentration steps to avoid matrix interference.
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