GB/T 22756-2008Leather sandals (English PDF)

Foreword

This standard is formulated based on the previous industry standard QB/T 2307-199 "Leather

Sandals". Compared with QB/T 2307- 1997, the main changes are as follows.

- The application scope was specified;

- The recommended thickness value of main position was deleted;

- The appearance quality was changed into sensory quality. And some inspection items

were added, deleted and modified;

- The index of physical and mechanical properties was adjusted;

- The color fastness to rubbing of lining and insole was added;

- Quantity limitation of limited substance was added;

- Prohibitive provisions about defects which might affect wearing were added into the

technical requirements.

Appendix A of this standard is normative, and Appendix B is informative.

This standard was proposed by China National Light Industry Council.

This standard shall be under the jurisdiction of National Technical Committee on Shoes of

Standardization Administration Leather Shoes Technical Committee (SAC/TC 305/SC 1).

Drafting organizations of this standard. China Leather and Footwear Industry Research

Institute, New Belle Footwear (Shenzhen) Co., Ltd., Fulin Shoes Industrial Co., Ltd., Foshan

Saturday Shoes Co., Ltd, and QingDao Hengda Co., Ltd.

Chief drafting staffs of this standard. Qi Xiaoxia, Zhang Weijuan, Song Xiaowu, Lin Heshi,

Li, Shan Cunli, and Gao Shanfang.

Since the implementation date of this standard, the previous light industry standard QB/T

2307-1997 "Leather Sandals" shall be abolished.

Leather Sandals

1 Scope

This standard specifies the technical requirements, test methods, inspection rules, packing,

transportation and storage of leather sandals which are made of natural leather, artificial

leather, synthetic leather, textiles or multiple materials upper; and which are manufactured by

processes of gluing, sewing, mould pressing, vulcanizing, injection molding and grouting etc.

This standard is applicable to the leather sandals for general wearing.

For sandals with uppers made of textiles or other materials and sandals manufactured by

equivalent process, it may also take this standard as reference.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute

provisions of this standard. For dated reference, subsequent amendments to (excluding

content of correction), or revisions of, any of these publications do not apply. However, all

parties coming to an agreement according to this standard are encouraged to study whether

the latest edition of these documents is applicable. For undated references, the latest edition of

the normative document is applicable to this standard.

GB/T 230.1 Metallic Rockwell Hardness Test-Part 1.Test method (A, B, C, D, E, F, G, H,

K, N, T) (GB/T 230.1-2004, ISO 6508-1.1999, MOD)

GB/T 532 Rubber, Vulcanized or Thermoplastic-determination of Adhesion to Textile

Fabric (GB/T 532-2008, ISO 36.2005, IDT)

GB/T 2912.1 Textiles--Determination of Formaldehyde--Part 1.Free and Hydrolyzed

Formaldehyde (Water Extraction Method)

GB/T 3293 Chinese Shoe Sizing and Last Systems

GB/T 3293.1 Shoe Sizes (GB/T 3293.1-1998, idt ISO 9407.1991)

GB/T 3903.1 General Test Method for Footwear-Test Method of Flexing Resistance

GB/T 3903.1 General Test Method for Footwear-Test Method of Abrasion Resistance

GB/T 3903.3 General Test Method for Footwear-Test Method of Peeling Strength

GB/T 3903.4 General Test Method for Footwear-Test Method of Hardness

GB/T 3903.5 General Test Method for Footwear-Test Method of Appearance

GB/T 11413 Test Method for Bond Strength of Leather Shoe Heels

GB/T 17592 Textiles-Determination of the Banned Azo Colourants

GB/T 19941 Leather and Fur-Chemical Tests-Determination of Formaldehyde Content

(GB/T 19941-2005, ISO/TS 17226.2003, MOD)

GB/T 19942 Leather and Fur-Chemical Tests-Determination of Banned Azo Colourants

(GB/T 19942-2005, ISO/TS 17234.2003, MOD)

QB/T 1472 Flexing Index of Shoes Fibreboard

QB/T 1813 Test Methods for Longitudinal Rigidity of Leather Shoes Shanks (QB/T

1813-2000, eqv BS 5131/4.18.1995)

QB/T 1917 Shanks for Leather Footwear

QB/T 2673 Leather Shoes -- Rules for Determination of the Suitability

QB/T 2882-2007 Footwear-Test Methods for Uppers Linings and Insocks-colour

Fastness to Rubbing

3 Product Classification

According to wearing objects, it can be classified into male and female sandals.

According to style, it can be classified into belt loop style, close toe & close back style,

hollow, front-hollow, and back-hollow style, etc.

According to the upper materials, it can be classified into natural leather (top layer leather and

split leather), artificial leather, synthetic leather, textiles, and multiple materials sandals.

4 Technical Requirements

8 Upper size

The front upper (upper band) length

tolerance of the same pair of shoes is

1.5mm while the back upper height (upper

band length) tolerance is 2.0mm.

The front upper (upper band) length tolerance of the

same pair of shoes is 1.5mm while the back upper

height (upper band length) tolerance is 2.5mm.

9 Folding edge along the mouth Basically regular, uniform and smooth, without exposed notch and gape

10 Outsole thickness

The thickness of forefoot action position shall not be less than 3.0mm when the figure has been

deducted while the heel action position shall not be less than 5.0mm

11 Accessory

Assembled firmly and basically symmetric. Uniform in color and lustre and without obvious sensory

defects. The surfaces of metal pieces shall be smooth and without sharp edge and sharp tip. Zippers

shall be smooth and both ends of the zipper shall free from rags

Note 1.if the outsole length tolerance of shoes of same pair exceeds 4.0mm and width tolerance exceeds 3.0mm, the shoes

belong to serious defects.

Note 2.if the toe upper (upper band) length tolerance of shoes of same pair exceeds 4mm while the back counter height (upper

band length) tolerance exceeds 4mm, it belongs to serious defects.