SN/T 5606-2024 in English
VALIDDetermination of 4-tert-butylphenol in textiles for import and export - Gas chromatography-mass spectrometry
- Issued on:2024-12-16
- Implemented on:2025-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$90.00
$88.00
$88.00
| Standard No: | SN/T 5606-2024 |
| Document status: | VALID |
| Title in English: | Determination of 4-tert-butylphenol in textiles for import and export - Gas chromatography-mass spectrometry |
| Title in Chinese: | 进出口纺织品 4-叔丁基苯酚的测定 气相色谱-质谱法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-12-16 |
| Implemented on: | 2025-06-01 |
| ICS Classification: | 59.080.30-Textile fabrics |
| Chinese Classification: | W04-Basic standards and general methods |
| Professional Classification: | SN-Import&Export Inspection |
| Related Keywords: | gas chromatography-mass spectrometry introduction standard technical background
core detection principle using gas chromatography-mass spectrometry parallel determination difference international environmental protection requirements environmental hormone substance |
Introduction
Standard Technical Background
With the tightening of international environmental protection requirements such as REACH regulations, 4-tert-butylphenol has been included in the key monitoring list as an environmental hormone substance. This standard (SN/T 5606-2024) was jointly formulated by the General Administration of Customs and 8 technical institutions, filling the gap in the detection method of this substance in my country's textiles.
Core detection principle
Using gas chromatography-mass spectrometry (GC-MS) coupling technology, through:
- Methanol ultrasonic extraction of target compound
- DB-5MS chromatographic column separation
- EI source 70eV ionization
- 135 m/z characteristic ion quantification
Actual application case: In the inspection of a certain exported knitwear, the mass spectrum interference of phthalates was effectively avoided through the SIM mode.
Comparison of key operating parameters
| Parameter type | Requirements of this standard | EU EN 14372 | Difference analysis |
|---|---|---|---|
| Extraction solvent | Methanol | Dichloromethane | More environmentally friendly |
| Chromatographic column | DB-5MS 30m | HP-5MS 25m | Resolution improved by 15% |
| Quantitative ion | 135 m/z | 107 m/z | Stronger anti-interference |
Key points of quality control
- Standard solution storage: 4℃, protected from light, valid for 6 months
- Recovery rate control: 85%-110% qualified range
- Precision requirements: Parallel determination difference ≤10%
Warning: The experiment needs to be carried out in a fume hood, and the operator should wear chemical protective gloves and goggles.
Implementation suggestions
- Regularly calibrate the frequency of the ultrasonic extractor (40kHz±5%)
- A blank test should be carried out simultaneously for each batch of samples
- It is recommended to use the isotope internal standard method to improve data accuracy
Sample only — not a preview of SN/T 5606-2024
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
