Nowadays, there are many types of student backpacks, and new varieties are not uncommon. In addition to focusing on unique features, your product must pay attention to the above points, ensuring quality and quantity, in order to smoothly enter the market

Scope of application:

Suitable for single and double backpacks and portable book bags mainly used for placing teaching textbooks, teaching aids, and student supplies.

. Other bags with similar functions can also be referred to for execution

Testing standards:

Project testing method specifications QB/T 2858-2007 clause 5.1 Mark QB/T 2858-2007 clause 7.1 Appearance QB/T 2858-2007 clause 5.6 Traveling trolley book bag pulley and trolley QB/T 2858-2007 clause 5.6 Performance of backpack type book bags (comfort, book bag strap, handle) QB/T 2858-2007 clause 5.6 Weight bearing (swing test) QB/T 2858-2007 clause 5.2.1 Weight bearing (static and drop test) QB/T 2858-2007 Clause 5.2.2 Stitching Strength QB/T 2858-2007 Clause 5.3.1 Corrosion Resistance of Electroplated Accessories QB/T 3826-1999 Zipper Durability QB/T 2858-2007 Clause 5.3.3 Friction Color Fastness GB/T 3920-2008 Accessories QB/T 2858-2007 Clause 5.3.5

Test Item:

Reference Standard Item Color Requirements Standard Sample Requirements 1 Specification 2 Appearance 3 Weight Bearing 4 Stitching Strength Main Part Stitching Fabric Two Pieces, Area 60mm × 60mm5QB/T 3826-1999, QB/T 3832-1999; Electroplated accessories 6. Durability of zippers. Zipper length ≤ 20cm7. GB/T 3920-1997. Color fastness to friction of fabric. 8. Accessories 9. GB/T 2912.1-1998. Determination of formaldehyde content. 10GB 6675-2003. Maximum limit of transferable elements. 11. Traveling trolley and trolley. 12. Comfort of backpack. 13. Bookbag with backpack. 14. Handle for backpack.

The above article is a partial list, For more testing needs and details, free consultation with online consultants: 152  0173  3840 (phone and WeChat), conducting testing on over a hundred inspection websites - issuing authoritative testing reports has legal effect

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China