GB/T 2664-2026 Men's suits and coats English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 2664-2026
Men's suits and coats
男西服、大衣
Issue date: 2026-08-27 Implementation date: 2027-09-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Men’s Suits and Overcoats
1 Scope
This document specifies the requirements, inspection rules, marking, packaging, transportation and storage for men’s suits and overcoats, and describes the corresponding test methods.
This document applies to men’s suits and overcoats manufactured with woven fabrics such as pure wool, wool blends and interweaves, and wool-like fabrics as the main shell fabrics.
This document is not applicable to infant garments for children aged 36 months and below.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute indispensable provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 250 Textiles — Tests for colour fastness — Grey scale for assessing change in colour
GB/T 1335.1 Garment sizing — Men
GB/T 1335.3 Garment sizing — Children
GB/T 3917.2 Textiles — Tear properties of fabrics — Part 2: Determination of tear force of trouser-shaped test specimens (single tear)
GB/T 4802.1-2008 Textiles — Determination of pilling resistance of fabrics — Part 1: Circular locus method
GB/T 4841.3 Standard depth colour cards for dyeing — 2/1, 1/3, 1/6, 1/12, 1/25
GB/T 5296.4 Instructions for use of consumer products — Part 4: Textiles and apparel
GB/T 8629-2017 Textiles — Domestic washing and drying procedures for textile testing
GB/T 8630 Textiles — Determination of dimensional change after washing and drying
GB/T 14304 Specifications for woollen suits
GB/T 14801 Test method for skew and bow of woven and knitted fabrics
GB 18401 National general safety technical code for textile products
GB/T 21294-2024 Test methods for physical and chemical properties of garments
GB/T 21295-2024 Technical requirements for physical and chemical properties of garments
GB/T 23322 Textiles — Determination of surfactants — Alkylphenols and alkylphenol ethoxylates
GB/T 29257 Textiles — Evaluation of wrinkle recovery of fabrics — Appearance method
GB/T 29862 Textiles — Fibre content labelling
GB 31701 Safety technical specification for infant and children’s textile products GB/T 31702 Test method for sharpness of textile articles attachments
GB/T 31907 Garment measurement methods
FZ/T 80002 Marking, packaging, transportation and storage of garments
FZ/T 80004 Rules for factory inspection of finished garments
FZ/T 80007.3-2023 Test method for dry cleaning resistance of garments with bonded interlining
3 Terms and Definitions
No terms and definitions are required to be defined in this document.
4 Requirements
4.1 Instructions for Use
Product instructions for use shall comply with GB/T 5296.4. Products for children over 3 years old up to 14 years old shall also comply with GB 31701.
4.2 Sizing Specifications
4.2.1 Sizing shall be set in accordance with GB/T 1335.1 and GB/T 1335.3. 4.2.2 Specifications for main parts shall be self-designed in accordance with relevant provisions of GB/T 1335.1, GB/T 1335.3 and GB/T 14304.
4.3 Raw Materials
Shell fabrics and lining fabrics shall meet the relevant quality requirements of this document. Auxiliary materials such as lining fabrics and sewing threads shall be compatible with the shell fabric. Buttons, decorative buttons, zippers and other attachments shall have smooth surfaces, free of burrs, defects, flaws and accessible sharp points and edges. Zippers shall mesh properly and slide smoothly.
4.4 Warp and Weft Direction of Fabric
The warp and weft direction of shell fabric shall conform to Table 1. Heavy fulled, napped and directional nap products are exempt from assessment of warp and weft direction, except for special designs.
4.5 Matching of Stripes and Checks
4.5.1 The skewness of stripe and check patterns shall not be greater than 2%, except for special designs. 4.5.2 For shell fabrics with distinct stripes or checks of 1.0 cm width and above, the requirements in Table 2 shall apply, except for special designs. 4.5.3 For products with distinct stripes, checks or regular patterns on shell fabric of width more than 0.5 cm up to 1.0 cm (exclusive), stripes, checks and patterns of pockets and front panels shall match, with a deviation not greater than 0.1 cm. 4.5.4 For raw materials with directional nap or shaded checks, the nap direction of the whole garment shall be consistent.
4.6 Piecing
For overcoats, the front facing is permitted two piecing joints and one splice, which shall avoid the buttonhole position and be placed between the first and second buttons on the front placket. For suits and overcoats, the underarm gusset is permitted two piecing joints and one splice; no piecing is allowed at other positions, except for special designs.
4.7 Colour Difference
4.7.1 The colour difference of shell fabric at sleeve seams and hem seams shall be not less than Grade 4. The colour difference caused by multi-layer fabrics or bonded interlining shall be not less than Grade 4. The colour difference at other surface positions shall be not less than Grade 4–5, except for special designs. 4.7.2 The colour difference of lining fabric shall be not less than Grade 4. 4.7.3 The colour difference of main shell fabric between pieces of suit sets shall be not less than Grade 4, except for special designs.
4.8 Surface Defects
The allowable severity of defects at each part of finished garments shall comply with Table 3. Only one type of defect within the allowable severity is permitted for each part. The division of each part of finished garments is shown in Figure 1, where the waist belt is Part No.3. Defects not listed in this document shall be assessed by reference to similar defects specified in Table 3 according to their form, except for special designs or decorations.
4.9 Sewing Quality
4.9.1 Stitch density shall comply with Table 4, except for special designs. 4.9.2 All parts shall be sewn smoothly, with straight, neat and firm seams and uniform stitches. Wrinkles on main surface parts after sewing shall be assessed in accordance with the reference photos
GB/T 2664-2026 Men's suits and coats English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 2664-2026
Men's suits and coats
男西服、大衣
Issue date: 2026-08-27 Implementation date: 2027-09-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Men’s Suits and Overcoats
1 Scope
This document specifies the requirements, inspection rules, marking, packaging, transportation and storage for men’s suits and overcoats, and describes the corresponding test methods.
This document applies to men’s suits and overcoats manufactured with woven fabrics such as pure wool, wool blends and interweaves, and wool-like fabrics as the main shell fabrics.
This document is not applicable to infant garments for children aged 36 months and below.
2 Normative References
The following documents contain provisions which, through normative reference in this text, constitute indispensable provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 250 Textiles — Tests for colour fastness — Grey scale for assessing change in colour
GB/T 1335.1 Garment sizing — Men
GB/T 1335.3 Garment sizing — Children
GB/T 3917.2 Textiles — Tear properties of fabrics — Part 2: Determination of tear force of trouser-shaped test specimens (single tear)
GB/T 4802.1-2008 Textiles — Determination of pilling resistance of fabrics — Part 1: Circular locus method
GB/T 4841.3 Standard depth colour cards for dyeing — 2/1, 1/3, 1/6, 1/12, 1/25
GB/T 5296.4 Instructions for use of consumer products — Part 4: Textiles and apparel
GB/T 8629-2017 Textiles — Domestic washing and drying procedures for textile testing
GB/T 8630 Textiles — Determination of dimensional change after washing and drying
GB/T 14304 Specifications for woollen suits
GB/T 14801 Test method for skew and bow of woven and knitted fabrics
GB 18401 National general safety technical code for textile products
GB/T 21294-2024 Test methods for physical and chemical properties of garments
GB/T 21295-2024 Technical requirements for physical and chemical properties of garments
GB/T 23322 Textiles — Determination of surfactants — Alkylphenols and alkylphenol ethoxylates
GB/T 29257 Textiles — Evaluation of wrinkle recovery of fabrics — Appearance method
GB/T 29862 Textiles — Fibre content labelling
GB 31701 Safety technical specification for infant and children’s textile products GB/T 31702 Test method for sharpness of textile articles attachments
GB/T 31907 Garment measurement methods
FZ/T 80002 Marking, packaging, transportation and storage of garments
FZ/T 80004 Rules for factory inspection of finished garments
FZ/T 80007.3-2023 Test method for dry cleaning resistance of garments with bonded interlining
3 Terms and Definitions
No terms and definitions are required to be defined in this document.
4 Requirements
4.1 Instructions for Use
Product instructions for use shall comply with GB/T 5296.4. Products for children over 3 years old up to 14 years old shall also comply with GB 31701.
4.2 Sizing Specifications
4.2.1 Sizing shall be set in accordance with GB/T 1335.1 and GB/T 1335.3. 4.2.2 Specifications for main parts shall be self-designed in accordance with relevant provisions of GB/T 1335.1, GB/T 1335.3 and GB/T 14304.
4.3 Raw Materials
Shell fabrics and lining fabrics shall meet the relevant quality requirements of this document. Auxiliary materials such as lining fabrics and sewing threads shall be compatible with the shell fabric. Buttons, decorative buttons, zippers and other attachments shall have smooth surfaces, free of burrs, defects, flaws and accessible sharp points and edges. Zippers shall mesh properly and slide smoothly.
4.4 Warp and Weft Direction of Fabric
The warp and weft direction of shell fabric shall conform to Table 1. Heavy fulled, napped and directional nap products are exempt from assessment of warp and weft direction, except for special designs.
4.5 Matching of Stripes and Checks
4.5.1 The skewness of stripe and check patterns shall not be greater than 2%, except for special designs. 4.5.2 For shell fabrics with distinct stripes or checks of 1.0 cm width and above, the requirements in Table 2 shall apply, except for special designs. 4.5.3 For products with distinct stripes, checks or regular patterns on shell fabric of width more than 0.5 cm up to 1.0 cm (exclusive), stripes, checks and patterns of pockets and front panels shall match, with a deviation not greater than 0.1 cm. 4.5.4 For raw materials with directional nap or shaded checks, the nap direction of the whole garment shall be consistent.
4.6 Piecing
For overcoats, the front facing is permitted two piecing joints and one splice, which shall avoid the buttonhole position and be placed between the first and second buttons on the front placket. For suits and overcoats, the underarm gusset is permitted two piecing joints and one splice; no piecing is allowed at other positions, except for special designs.
4.7 Colour Difference
4.7.1 The colour difference of shell fabric at sleeve seams and hem seams shall be not less than Grade 4. The colour difference caused by multi-layer fabrics or bonded interlining shall be not less than Grade 4. The colour difference at other surface positions shall be not less than Grade 4–5, except for special designs. 4.7.2 The colour difference of lining fabric shall be not less than Grade 4. 4.7.3 The colour difference of main shell fabric between pieces of suit sets shall be not less than Grade 4, except for special designs.
4.8 Surface Defects
The allowable severity of defects at each part of finished garments shall comply with Table 3. Only one type of defect within the allowable severity is permitted for each part. The division of each part of finished garments is shown in Figure 1, where the waist belt is Part No.3. Defects not listed in this document shall be assessed by reference to similar defects specified in Table 3 according to their form, except for special designs or decorations.
4.9 Sewing Quality
4.9.1 Stitch density shall comply with Table 4, except for special designs. 4.9.2 All parts shall be sewn smoothly, with straight, neat and firm seams and uniform stitches. Wrinkles on main surface parts after sewing shall be assessed in accordance with the reference photos
