GB/T 36975-2018General requirements for footwear (English PDF)

5.3 Physical and mechanical performance requirements

5.3.1 General Infants' shoes do not require physical and mechanical performances.

5.3.2 Upper sole peeling strength

5.3.2.1 Non-adhesive (such as sewing, seaming, etc.) shoes do not require the peeling strength of upper sole.

5.3.2.2 The upper sole peeling strength of slippers shall not be less than 25 N/cm. The upper sole peeling strength of other shoes shall not be less than 40 N/cm.

5.3.2.3 If the material is torn and the adhesive layer does not break, the peeling strength shall not be less than 30 N/cm.

5.3.3 Upper pull-off strength

5.3.3.1 Shoes which are not suitable for the testing of peeling strength (such as shoes with a thickness of more than 25 mm on the sole test position) are tested for upper pull-off strength instead.

5.3.3.2 Shoes with processes such as sewing, seaming, or riveting shall be tested for upper band pull-off strength. If the width of the upper band is larger than the clamp width (25 mm), and it is not suitable for cutting the sample, the

5.3.7 Color fastness to rubbing of linings and insocks The wet rubbing staining grade of suede material shall not be less than Grade 2. The wet rubbing staining grade of fur and artificial wool shall not be less than Grade 3. The wet rubbing staining grade of other materials shall not be less than Grade 2-3.

5.3.8 Heel bond strength An assembled heel with a heel height greater than 30 mm shall be tested for the heel bond strength. It shall not be less than 700 N.

5.3.9.1 Women's shoes and children's shoes with a heel height greater than

20.0 mm and a heel mouth greater than

8.0 mm, and men's shoes with a heel height greater than

25.0 mm and a heel mouth greater than

10.0 mm shall be fitted with shanks and other rigid support materials.

5.3.9.2 The length lower limit, longitudinal rigidity, hardness, and bending performance of shanks shall meet the requirements of GB/T 28011.

5.3.9.3 Shoes with an injection molding insole are not tested for shanks. The longitudinal rigidity of the insole shall meet the requirements of QB/T 4862.

5.3.10 Uppers material low-temperature flexing resistance The uppers material low-temperature flexing resistance of the shoes worn in low temperature environment (such as winter shoes, etc.) shall meet the requirements of QB/T 2224.

5.3.11 Sole flexing resistance at low-temperature The sole flexing resistance at low-temperature of the shoes worn in low temperature environment (such as winter shoes, etc.) shall meet the requirements of QB/T 4886.

5.4 Limited material requirements

5.4.1 Content of decomposable harmful aromatic amine dyes The content of decomposable harmful aromatic amine dyes shall meet the requirements of Table 1. See Appendix A for a list of harmful aromatic amine dyes which shall not be decomposed from the dye under reducing conditions.

6.6 Outsole and outer insole adhesion It shall be inspected according to

GB/T 21396. The number of samples is 1 pair. 1 sample is taken from each sole. The test result takes the low value of the test results of 2 shoes.

6.7 Color fastness to rubbing of linings and insocks According to Method A of QB/T 2882-2007, wet rubbing is carried out 50 times for inspection. The fur or artificial wool shall be inspected according to QB/T 2790. The grey scale shall meet the requirements of

GB/T 251. TAKE the same material from linings and insocks as the sample. If there is no lining, the contact surface of the upper and the foot is taken as a sample for inspection. If the sample area does not meet the sampling requirements, the same batch of materials may be used for inspection.

6.8 Heel bond strength The heel bond strength shall be inspected according to GB/T 11413.

6.9 Shank The shank shall be inspected according to the method specified in GB/T 28011.

6.10 Uppers material low-temperature flexing resistance The materials in the same batch as the uppers shall be inspected according to QB/T 2224.

6.11 Sole flexing resistance at low-temperature Sole flexing resistance at low-temperature shall be inspected according to QB/T 4886.

6.12 Content of decomposable harmful aromatic amine dyes

6.12.1 Different materials shall be tested separately. If the upper and the lining cannot be separated, they shall be tested together; and the test method shall be the same as that for the lining.

6.12.2 Textiles shall be tested according to

GB/T 17592. Leather and fur shall be tested according to

GB/T 19942, where 4-aminoazobenzene shall be tested according to GB/T 33392.

6.13 Free or partially hydrolyzable formaldehyde content

6.13.1 Different materials shall be tested separately. If the upper and the lining It shall be able to ensure that the edges of the sample cropped are neat. B.2 Sampling and environmental conditioning B.2.1 There shall be no less than one pair of whole shoes for each set of samples. B.2.2 The upper of the whole shoe is cropped transversely into the sample strip with a width of (25.0±0.5)mm. The sole is kept in its original shape. The upper band is cut open from the middle. If the width of the upper band is less than

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