GA 571-2021 in English
VALIDPolice shoes — Leather summer shoes for women
- Issued on:2021-02-02
- Implemented on:2021-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
Price(USD)：
$330.00
$321.00
$321.00
| Standard No: | GA 571-2021 |
| Document status: | VALID |
| Title in English: | Police shoes — Leather summer shoes for women |
| Title in Chinese: | 警鞋 女皮凉鞋 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2021-02-02 |
| Implemented on: | 2021-03-01 |
| Superseding: |
GA 571-2010 Police shoes - Womens leather sandal
|
| ICS Classification: | 61.060-Footwear |
| Chinese Classification: | A94-Police-used device and tool |
| Professional Classification: | GA-Security |
| Related Keywords: | police shoes leather summer shoes
leather softness test upper leather edition new edition technical significance upper material no softness requirement add women introduction core changes |
| Related Topics: | police
Skin Leather + Liang Wu cool instrument leather shoes women's shoes leather sandals shoe GA 1800.2—2021 sandals Women's Shoe Technology |
本文件规定了警鞋女皮凉鞋的要求、试验方法、检验规则及标识、包装、运输和贮存。
本文件适用于警鞋女皮凉鞋。
Introduction
Core Changes in the Standard Revision
| Revision Dimensions | 2010 Edition | New Edition | Technical Significance |
|---|---|---|---|
| Upper Material | No Softness Requirement | Add 3.5-5.5mm Softness Index | Improve Wearing Comfort |
| Limited Substances | Unspecified | New Chapter 3.7 (Azo Dyes/Formaldehyde/Hexavalent Chromium) | In Line with International Environmental Protection Trends |
| Physical Properties | Peel strength ≥ 60N/cm | Increased to ≥ 70N/cm | Enhanced durability |
Key material technical specifications
Black full-grain yellow cow upper leather must meet the following requirements: tear force ≥ 25N, burst strength ≥ 150N/mm, dry friction color fastness ≥ 4 levels, thickness controlled at 1.2-1.5mm. The newly added leather softness test uses a 75mm diameter round specimen, and uses a special tester to detect the sinking depth under a pressure of 6N.
Key points of process control
- Reverse stitching process: The folding width of the shoe mouth is ≥4.0mm, and the edge of the seam needs to be sloped
- Laying allowance: The main heel and inner toe box maintain a processing allowance of 5.0-10.0mm
- Post-finishing: Add spraying process specifications, including 2 coats of filler + 1 coat of shoe lotion
Implementation suggestions
Manufacturers should focus on:
- Establish a salt spray test room with banding drill (48h test cycle)
- Update the Shore A hardness tester (forefoot 60-65 degrees/heel 75-80 degrees)
- Improve the batch testing process for upper leather (5 samples of ≥200×300mm per batch)
Sample only — not a preview of GA 571-2021
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