SN/T 0749-2016 in English
VALIDRules for the inspection for import and export pencil and crayon
- Issued on:2016-12-12
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | SN/T 0749-2016 |
| Document status: | VALID |
| Title in English: | Rules for the inspection for import and export pencil and crayon |
| Title in Chinese: | 进出口铅笔、蜡笔检验规程 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2016-12-12 |
| Implemented on: | 2017-07-01 |
| Superseding: |
SN/T 0749-2010 Rules for the Inspection for Import and Export Pencil and Crayon
|
| Professional Classification: | SN-Import&Export Inspection |
| Related Topics: | Dissolution of lead detection
Pencil hardness test Regulations on Inspection and Quarantine of Imported and Exported Horses pencil detection lead out peak pen alum Pencil hardness test metal pencil Import and export SDS Import and export SDS Cobalt imports Santu Import and Export pencil stroke test Wubi Pencil Scratch Tester pencil detection Wubi electroscope pen pencil international Electric test pen test |
Introduction
Standard Revision Background and Technological Evolution
This standard replaces SN/T 0749-2010. Major technical changes include: updated heavy metal detection methods, expanded physical property test items, and alignment of sampling plans with GB/T 2828.1. This revision is based on GB/T 1.1-2009, the Guidelines for Standardization, and forms a supporting framework with five other industry standards, including QB/T 2992.3.
Comparison of core inspection items
| Inspection dimensions | Pencil requirements | Crayon requirements | Test basis |
|---|---|---|---|
| Physical safety | Tip pulling force ≥8N | Breaking strength ≥2.5kgf | QB 1336 |
| Chemical safety | 8 items including lead, cadmium, chromium | 6 items of migratable elements | GB/T 26704 |
| Combustion performance | Not applicable | Burn rate ≤ 50mm/min | SN/T 2755.2 |
Explanation of key terms
AQL (Acceptance Quality Limit): According to Appendix B of the standard, the AQL values of pencil products are divided into:
- Class A defects (serious): AQL=6.5
- Class B defects (major): AQL=10
Case: A batch of exported colored pencils was found to have excessive lead content in 3 refills. The entire batch was deemed unqualified based on Class A defects.
Implementation suggestions for enterprises
- When establishing incoming material inspection specifications, it is necessary to reference the SN/T 2755 series standards simultaneously. 4688 sets limits on phthalates
- It is recommended to entrust CNAS laboratories to conduct type tests every quarter
Differences between the old and new standards
Main additions to the 2016 version compared to the 2010 version:
1. Added the test requirement for accessible sharp edges (Clause 4.3.2)
2. Modified the heavy metal detection method to microwave digestion-ICP method
3. Detailed handling procedures for unqualified imported products (Chapter 8)
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