Inspection Procedures for Footwear Inspection Procedures for Indoor Shoes
1Key Takeaways
This part specifies the sampling inspection of indoor shoes, the determination of inspection results and the handling of unqualified ones. This part is applicable to the inspection and determination of indoor shoes made of various materials.
2Expert Interpretation
Professional interpretation of the standard content of SN 1309.6-2003 "Footwear Inspection Procedure Indoor Shoes Inspection Procedure", covering three inspection dimensions: health and safety performance, conventional physical properties and appearance quality, including 6 types of toxic and hazardous substances detection, 12 physical and mechanical safety requirements and a detailed appearance defect classification system, which is suitable for quality control of indoor shoes of various materials.
Background of Standard Evolution
This standard integrates and replaces 7 old standards such as SN/T 0303-1993, and establishes a systematic indoor shoe inspection system for the first time. The 2003 revision focused on strengthening the safety requirements for infant shoes and children's shoes, and added chemical index tests such as formaldehyde and azo dyes.
Core Inspection Framework
| Inspection Category | Test Items | Technical Basis | Key Indicators |
|---|---|---|---|
| Health and Safety | Formaldehyde Content | GB/T 2912.1 | ≤75mg/kg(Infants and Young Children) |
| Nickel Release | EN 1811 | ≤0.5μg/cm²/week | |
| Banned Azo Dyes | SN/T 1045 Series | Banned 24 Aromatic Amines | |
| Physical properties | Colour fastness to rubbing | GB/T 3920 | ≥Grade 3-4 |
| Sewing fastness | GB 9832-1993 | ≥70N |
Analysis of key clauses
4.4.2 Physical and mechanical safety (mandatory)
Special provisions for baby shoes:
- Removable accessories must pass the small parts test cylinder test
- Metal parts must pass the EN 12472 simulated corrosion test
- Criteria for determining the length of the insole of a shoe ≤170mm
Implementation suggestions
Case: A pair of flannel indoor shoes exported to the EU were returned because they did not detect pentachlorophenol residues. Suggestions:
- Establish a material traceability file, and focus on monitoring leather/textile accessories
- Use GB/T 18414.1 gas chromatography-mass spectrometry for screening
- Double the sampling frequency for baby shoes under 3 years old
Comparison of old and new standards
| Items | 1993 Edition | 2003 Edition | Range of Change |
|---|---|---|---|
| Test Parameters | 8 Items | 23 Items | +187.5% |
| Definition of Children’s Shoes | Unclassified | 3-14 Years Old | New Age Segments |
| Classification of Appearance Defects | 2 Categories | 3 Categories (A/B/C) | Refine Judgment Criteria |