GB/T 41558-2022 in English
VALIDDetermination of staple length and strength
- Issued on:2022-07-11
- Implemented on:2023-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$280.00
$272.00
$272.00
《GB/T 41558-2022毛丛长度强度试验方法》由TC513（全国纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Key points of technical specifications
| Technical indicators | Traditional methods | New standard |
|---|---|---|
| Break strength accuracy | ±10N/ktex | ±6N/ktex |
| Measuring range adaptability | Linear range 300mm | Intelligent error compensation system |
| Quality control points | Visual inspection acceptance | Statistical process control (SPC) |
Typical detection process control
Case scenario: Raw material purchase inspection at Inner Mongolia Fine Wool Factory
- Sampling specification: Use 3-hole grab plate to collect 55 groups of wool samples according to the diagonal distribution method
- Pretreatment: Constant temperature and humidity chamber for 6 hours (20℃±2℃, RH65%±3%)
- Fault handling: When 4.8% abnormal data is detected, the invalidation judgment is triggered (confidence level 95%)
Standardization development process
| Phase | Method change | Improvement of detection accuracy |
|---|---|---|
| 2015 Edition | Manual comparison ruler measurement | ±8% relative error |
| 2022 Edition | Electronic grating imaging + force sensor | ≤3.2% full scale error |
Description: After the new standard introduces servo drive technology, the tensile speed control stability reaches ±0.05mm/s
Break point positioning analysis
- Tip area: ≤33% total length (typical feature: abnormal pasture climate leads to loose fiber structure)
- Middle break: 33%-67% range (important indicator of tension mismatch in spinning process)
- Root deterioration: >67% (indicating feeding management or shearing operation defects)
Sample only — not a preview of GB/T 41558-2022
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
