FZ/T 73013-2025 Knitted swimming wear
1 Scope
This document specifies the product classification and sizing, requirements, test, sampling rules, judgment rules, product instruction, packaging, transportation and storage of knitted swimming wear.
This document is applicable to knitted swimming wear mainly made of knitted fabrics. Swimming wear made of other textile materials can be implemented as a reference. It is not applicable to swimming wears with special requirements.
Note: Special requirements refer to competitive swimming wear, etc.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour
GB/T 2910 (all parts) Textiles - Quantitative chemical analysis
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method)
GB/T 3920 Textiles - Tests for colour fastness - Color fastness to rubbing
GB/T 3921-2008 Textiles - Tests for colour fastness - Colour fastness to washing with soap or soap and soda
GB/T 3922 Textiles - Tests for color fastness - Color fastness to perspiration
GB/T 4856 Package of cotton goods and knitwear
GB/T 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel
GB/T 5713 Textiles - Tests for color fastness - Color fastness to water
GB/T 5714 Textiles - Tests for colour fastness - Colour fastness to sea water
GB/T 6411 A series of size of knitted underwear
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 7573 Textiles - Determination of pH of aqueous extract
GB/T 8427-2019 Textiles - Tests for colour fastness - Colour fastness to artificial light: xenon arc fading lamp test
GB/T 8433 Textiles - Tests for colour fastness - Colour fastness to chlorinated water (swimming-pool water)
GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8878 Knitted underwear
GB/T 14801 Test method for skewness and bow in woven and knitted fabrics
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401 National general safety technical code for textile products
GB/T 21655.1-2023 Textiles - Evaluation of absorption and quick-drying - Part 1: Method for combination tests
GB/T 29862 Textiles - Identification of fiber content
GB/T 31127-2014 Textiles - Tests for colour fastness - Colour fastness to transfer in joints
GB 31701 Safety technical code for infants and children textile products
GB/T 38015 Textiles - Quantitative chemical analysis - Mixtures of elastane and certain other fibers
GSB 16-2159 Knitwear standard depth scale (1/12)
GSB 16-2500 Color sample photos of surface defect on knitted fabrics
FZ/T 01026 Textiles - Quantitative chemical analysis - Mulitinary fibre mixtures
FZ/T 01057 (all parts) Test method for identification of textile fibers
FZ/T 01101 Textile test method - Fiber content - Quantitative physical analysis
FZ/T 70006-2022 Stretch and recovery testing method for knitted fabrics
FZ/T 70017-2022 General technical requirements of printing quality for knitted garment
FZ/T 73012 Brassiere
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
fluorescence color
color presented when certain substances are excited and emit visible light after absorbing incident light of specific wavelengths
Note: Under ultraviolet light, it will increase the visual visibility to a certain extent.
4 Product classification and sizing
4.1 Knitted swimming wears are divided into three types: one-piece swimming wears, two-piece swimming wears, and swimming trunks.
4.2 The sizing of one-piece swimming wears shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range and chest circumference range according to the grading values specified in GB/T 6411.
4.3 The sizing of two-piece swimming wears shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range, chest circumference range, and hip circumference range according to the grading values specified in GB/T 6411. For two-piece swimming wears with cups, the upper garment can also be implemented according to FZ/T 73012.
4.4 The sizing of swimming trunks shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range and hip circumference range according to the grading values specified in GB/T 6411.
5 Requirements
5.1 Grading requirements
5.1.1 Products are classified into superior products, first-grade products and acceptable products in terms of the quality grade.
5.1.2 The products are graded by batches in terms of intrinsic quality and by pieces in terms of appearance quality, and shall take the lowest grade in case of a combination of both.
5.1.3 For all intrinsic quality indexes, the worst inspection result is regarded as the grading basis for this batch of products.
5.1.4 Where appearance quality problems of different product grades are found on the same product, the product shall be graded according to the lowest quality grade. For one product, only two limit surface defects of the same grade are allowed to exist; otherwise, it shall be degraded by one grade.
5.2 Inherent quality requirements
5.2.1 See Table 1 for the inherent quality requirements for knitted swimming wear.
5.2.2 The swimming wears for infants and children shall also meet the relevant requirements of GB 31701.
5.2.3 For the grading of colour, dark colour is greater than 1/12 of the standard depth and light colour is less than or equal to 1/12 of the standard depth according to GSB 16-2159.
Contents
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and sizing
5 Requirements
6 Tests
7 Sampling rules
8 Judgment rules
9 Product instructions, packaging, transportation and storage
FZ/T 73013-2025 Knitted swimming wear
1 Scope
This document specifies the product classification and sizing, requirements, test, sampling rules, judgment rules, product instruction, packaging, transportation and storage of knitted swimming wear.
This document is applicable to knitted swimming wear mainly made of knitted fabrics. Swimming wear made of other textile materials can be implemented as a reference. It is not applicable to swimming wears with special requirements.
Note: Special requirements refer to competitive swimming wear, etc.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour
GB/T 2910 (all parts) Textiles - Quantitative chemical analysis
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and hydrolyzed formaldehyde (water extraction method)
GB/T 3920 Textiles - Tests for colour fastness - Color fastness to rubbing
GB/T 3921-2008 Textiles - Tests for colour fastness - Colour fastness to washing with soap or soap and soda
GB/T 3922 Textiles - Tests for color fastness - Color fastness to perspiration
GB/T 4856 Package of cotton goods and knitwear
GB/T 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel
GB/T 5713 Textiles - Tests for color fastness - Color fastness to water
GB/T 5714 Textiles - Tests for colour fastness - Colour fastness to sea water
GB/T 6411 A series of size of knitted underwear
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 7573 Textiles - Determination of pH of aqueous extract
GB/T 8427-2019 Textiles - Tests for colour fastness - Colour fastness to artificial light: xenon arc fading lamp test
GB/T 8433 Textiles - Tests for colour fastness - Colour fastness to chlorinated water (swimming-pool water)
GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8878 Knitted underwear
GB/T 14801 Test method for skewness and bow in woven and knitted fabrics
GB/T 17592 Textiles - Determination of the banned azo colourants
GB 18401 National general safety technical code for textile products
GB/T 21655.1-2023 Textiles - Evaluation of absorption and quick-drying - Part 1: Method for combination tests
GB/T 29862 Textiles - Identification of fiber content
GB/T 31127-2014 Textiles - Tests for colour fastness - Colour fastness to transfer in joints
GB 31701 Safety technical code for infants and children textile products
GB/T 38015 Textiles - Quantitative chemical analysis - Mixtures of elastane and certain other fibers
GSB 16-2159 Knitwear standard depth scale (1/12)
GSB 16-2500 Color sample photos of surface defect on knitted fabrics
FZ/T 01026 Textiles - Quantitative chemical analysis - Mulitinary fibre mixtures
FZ/T 01057 (all parts) Test method for identification of textile fibers
FZ/T 01101 Textile test method - Fiber content - Quantitative physical analysis
FZ/T 70006-2022 Stretch and recovery testing method for knitted fabrics
FZ/T 70017-2022 General technical requirements of printing quality for knitted garment
FZ/T 73012 Brassiere
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
fluorescence color
color presented when certain substances are excited and emit visible light after absorbing incident light of specific wavelengths
Note: Under ultraviolet light, it will increase the visual visibility to a certain extent.
4 Product classification and sizing
4.1 Knitted swimming wears are divided into three types: one-piece swimming wears, two-piece swimming wears, and swimming trunks.
4.2 The sizing of one-piece swimming wears shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range and chest circumference range according to the grading values specified in GB/T 6411.
4.3 The sizing of two-piece swimming wears shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range, chest circumference range, and hip circumference range according to the grading values specified in GB/T 6411. For two-piece swimming wears with cups, the upper garment can also be implemented according to FZ/T 73012.
4.4 The sizing of swimming trunks shall be in accordance with the requirements of GB/T 1335 (all parts) or GB/T 6411. The sizing beyond the standard range may be increased or decreased in sequence according to the grading values and principles specified in the standard. They can also be marked with the suitable height range and hip circumference range according to the grading values specified in GB/T 6411.
5 Requirements
5.1 Grading requirements
5.1.1 Products are classified into superior products, first-grade products and acceptable products in terms of the quality grade.
5.1.2 The products are graded by batches in terms of intrinsic quality and by pieces in terms of appearance quality, and shall take the lowest grade in case of a combination of both.
5.1.3 For all intrinsic quality indexes, the worst inspection result is regarded as the grading basis for this batch of products.
5.1.4 Where appearance quality problems of different product grades are found on the same product, the product shall be graded according to the lowest quality grade. For one product, only two limit surface defects of the same grade are allowed to exist; otherwise, it shall be degraded by one grade.
5.2 Inherent quality requirements
5.2.1 See Table 1 for the inherent quality requirements for knitted swimming wear.
5.2.2 The swimming wears for infants and children shall also meet the relevant requirements of GB 31701.
5.2.3 For the grading of colour, dark colour is greater than 1/12 of the standard depth and light colour is less than or equal to 1/12 of the standard depth according to GSB 16-2159.
Contents of FZ/T 73013-2025
Contents
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and sizing
5 Requirements
6 Tests
7 Sampling rules
8 Judgment rules
9 Product instructions, packaging, transportation and storage
