GB/T 22756-2017 in English

《GB/T 22756-2017皮凉鞋》由TC305（全国制鞋标准化技术委员会）归口，主管部门为中国轻工业联合会。

ChinaStandards.net is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 22756-2008 Leather Sandals with the following major changes:

——In Scope, long sandal is added while limitation for leather sandals (including long sandals) for infants and children is given;

——Chapter 3 "Terms and Definitions" is added;

——In Chapter 4, classification by manufacturing process is added (see 4.4);

——In General Requirements, after-sale quality judgment is added (see 5.1);

——In 5.2, content of sensory quality is modified;

——The requirements concerning odor are added (see 5.3) and the odor test method is added in Test Methods (see 6.2);

——In 5.4.1, requirement for flexing resistance index of finished shoes and test exemption conditions are modified;

——In 5.4.3, requirement for peeling strength index and test exemption conditions are modified;

——Requirement for abrasion resistance property of heel (see 5.4.11) and corresponding test method (see 6.13) are added;

——In 5.4.5, the requirements for formed sole heel hardness index are modified; in 6.7, the test method for formed sole heel hardness is modified;

——In 5.4.8, shank property requirements and test exemption conditions are modified;

——In 5.4.10, indexes of color fastness to rubbing of lining and insock are modified;

——In 6.6, test method for pullout strength of upper strap is modified;

——In 6.8, test method for adhesive strength between outsole and outside midsole is modified;

——In Chapter 7, test items and result judgment are modified;

——In Chapter 8, the test rules, marking and packaging, transportation and storage are modified to subject to QB/T 1187;

——In Annex A, contents of after-sale quality judgment are modified;

——In Annex B, list of harmful aromatic amines is modified.

Attention shall be drawn to the possibility that some contents of this document may be the subject of patent rights. The issuing authority of this document shall not be responsible for identifying such parents.

The standard was proposed by China National Light Industry Council.

This standard is under the jurisdiction of National Technical Committee on Shoes of Standardization Administration Leather Shoes Technical Subcommittee (SAC/TC 305/SC1).

The previous edition replaced by this standard is:

——GB/T 22756-2008.

Leather Sandals

1 Scope

This standard specifies the technical requirements, test methods, test rules, packing, transportation and storage of leather sandals with upper made from natural leather, artificial leather, synthetic leather, textiles or multiple materials, manufactured by processes of gluing, sewing, mould pressing, vulcanizing, injection molding, grouting, etc.

This standard is applicable to leather sandals (including long sandals) for adults, and not applicable to leather sandals (including long sandals) for infants and children. Sandals with upper made from other materials and manufactured by the equivalent processes may also refer to the provisions of this standard.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 2703 Footwear—Vocabulary
GB/T 2912.1-2009 Textiles—Determination of Formaldehyde—Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)
GB/T 3293 Chinese Last Systems
GB/T 3293.1 Shoes Sizes
GB/T 3903.1-2008 Footwear—General Test Methods—Flexing Resistance
GB/T 3903.2-2008 Footwear—General Test Methods—Abrasion Resistance
GB/T 3903.3-2011 Footwear—General Test Methods—Peeling Strength
GB/T 3903.4-2008 Footwear—General Test Methods—Hardness
GB/T 3903.5-2011 Footwear—General Test Methods—Appearance Quality
GB/T 11413-2015 Test Method for Bond Strength of Leather Shoe Heels
GB/T 17592-2011 Textiles—Determination of the Banned Azo Colorants
GB/T 19941-2005 Leather and Fur—Chemical Tests—Determination of Formaldehyde Content
GB/T 19942-2005 Leather and Fur—Chemical Tests—Determination of Banned Azo Colorants
GB/T 20991-2007 Personal Protective Equipment—Test Methods for Footwear
GB/T 21396-2008 Footwear—Test Methods for Whole Shoe—Upper Sole Adhesion
GB/T 26703-2011 Determination of Abrasion Resistance for Top Piece of Leather Shoes—Rotation Cylindrical Drum Method
GB/T 28011 Shanks for Footwear
QB/T 1187 Footwear—Principle of Inspection and Marking, Package, Transportation, Storage
QB/T 1472-2013 Flexing Index of Fiberous Board for Footwear
QB/T 2673 Footwear—Specification of Marking
QB/T 2882-2007 Footwear—Test Methods for Uppers, Linings and Insocks—Color Fastness to Rubbing
QB/T 4862-2015 Midsoles for Footwear

3 Terms and Definitions

For the purposes of this document, the terms and definitions defined in GB/T 2703 as well as the following ones apply.

3.1
primary site
generally, it refers to outer side of upper, forepart, counter-heel and toe-puff.

3.2
secondary site
generally, it refers to inner side and backside of upper.

4 Product Classification

4.1 By wearer

The products are classified into two categories by wearer:

a) Leather sandals (boots) for men;

b) Leather sandals (boots) for women.

4.2 By style

The products are classified into six categories by style:

a) Belt loop leather sandals (boots);

b) Close toe & close back leather sandals (boots);

c) Hollow leather sandals (boots);

d) Front-hollow leather sandals (boots);

e) Back-hollow leather sandals (boots);

f) Others.
4.3 Classification by upper material

The products are classified into four categories by upper material:

a) Leather sandals (boots) with natural leather (top layer leather, split leather) upper;

b) Leather sandals (boots) with artificial leather/synthetic leather upper;

c) Leather sandals (boots) with textile upper;

d) Leather sandals (boots) with upper made of multiple materials.

4.4 Classification by manufacturing process

The products are classified into seven categories by manufacturing process:

a) Bonded leather sandals (boots);

b) Sewed leather sandals (boots);

c) Mould pressing leather sandals (boots);

d) Vulcanized leather sandals (boots);

e) Injection molding leather sandals (boots);

f) Grouted leather sandals (boots);

g) Leather sandals (boots) made with other processes.

5 Requirements

5.1 General Requirements

5.1.1 The shoe size shall meet the requirements of GB/T 3293.1.

5.1.2 The last size shall meet the requirements of GB/T 3293.

5.1.3 The product marking shall meet the requirements of QB/T 2673.

5.1.4 The shoe materials shall meet the requirements of corresponding product standards.

5.1.5 See Annex A for after-sale quality judgment.
5.1.6 Defects which affect wearing shall be avoided.

5.2 Sensory quality

See Table 1 for sensory quality requirements. Items 1~5 and severe defects in Note 1 are the primary ones, Items 6~10 are secondary ones.

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Product Classification
5 Requirements
6 Test Methods
7 Test Items and Result Judgment
8 Test Rules, Marking, Packaging, Transportation and Storage
Annex A (Informative) After-sale Quality Judgment for Leather Sandals
Annex B (Normative) List of Harmful Aromatic Amines