GH/T 1256-2019 in English
VALIDQuality Grading Criteria of Raw Mink Skins
- Issued on:2019-05-21
- Implemented on:2019-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
本标准适用于国产生水貂皮的质量检验。
Introduction
Analysis of the core content of the standard
| Inspection dimensions | Requirements for male mink fur | Requirements for female mink fur |
|---|---|---|
| Total length of last | 115cm | 115cm |
| Maximum width | 11.5cm | 8.5cm |
| Middle groove specifications | Length 71cm×width 0.5cm | Length 71cm×width 0.5cm |
Key Quality Index Grading System
First-class leather standard: Must simultaneously meet the following core indicators: needle-hair ratio 1:1.2-1.5, hair density ≥12,000 hairs/cm², and injury area ≤0.5cm². Typical cases show that the compliance rate of North American shorthair sable is only 15%.
Technology Evolution Analysis
Compared with the 2008 version of the standard, the 2019 version has the following major improvements:
1. Added five-level classification of color clarity (blue/cyan/red/brown/mixed)
2. Refined the size classification to 11 levels (No. 50-No. 5)
3. Clarified the rules for determining the utilization value of substandard B-grade leather
Implementation Suggestions
- The inspection room needs to be equipped with a standard light source (color temperature 6500K)
- It is recommended to use the "shaking skin method" combined with an electron microscope for hair density testing
- For urine yellow skin, physiological yellowing and pathological yellowing should be distinguished
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