GB/T 44835-2024 in English
VALIDTextiles—Determination of chlorinated organic solvents
- Issued on:2024-11-28
- Implemented on:2025-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$262.00
《GB/T 44835-2024纺织品 含氯有机溶剂的测定》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
In-depth interpretation of GB/T 44835—2024 standard
| Standard dimensions | GB/T 44835—2024 features | Comparative advantages |
|---|---|---|
| Detection range | Applicable to the determination of 18 chlorinated organic solvents in various textile products | Covering all major industrial chlorinated solvents to ensure comprehensiveness |
| Detection method | Using gas chromatography-mass spectrometry (GC-MS) internal standard method for quantification | High sensitivity and specificity to ensure trace detection |
| Limit of Quantification | The limit of quantification for 18 solvents is 1.0 mg/kg | Meet high precision requirements and ensure data reliability |
Background of standard implementation and analysis of technological evolution
Hazards and control needs of chlorinated organic solvents
- Widely used as solvents and cleaning agents in the textile industry
- Toxic, may cause cancer or cause gene mutations
- Pollution to the environment, difficult to degrade
- Stricter international regulations promote the formulation of industry standards
Technological evolution and challenges
- Traditional detection methods: chromatography, mass spectrometry, limited sensitivity
- GC-MS combined with internal standard method for quantification: improve accuracy and sensitivity
- Ultrasonic extraction technology: Optimizing sample pretreatment efficiency
Comparison of standard frameworks and implementation recommendations
Implementation step guide
- Sample preparation:Select representative samples, cut them into small pieces, mix them evenly and weigh 1.0 g.
- Pretreatment:Add extraction solvent, perform ultrasonic extraction at 40℃ for 20 minutes, and filter after cooling.
- Instrumental analysis:Use GC-MS for analysis under specific conditions, and record peak area and retention time.
- Data processing:Calculate the concentration of the target substance using the standard working curve, and round off the result according to GB/T 8170.
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