Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This part is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces FZ/T 73013-2010 Knitted Swimming Suits; the following technical changes have been made with respect to FZ/T 73013-2010 (the previous edition):
——The application scope is modified (see Chapter 1; Chapter 1 of Edition 2010);
——The "Normative References" is modified (see Chapter 2; Chapter 2 of Edition 2010);
——The assessment standard for fiber content is changed from FZ/T 01053 to GB/T 29862 (see 4.2.1; 4.2.1 of Edition 2010);
——The assessment index of color fastness to light is modified, and fluorescence colors are added, which is not assessed for high-grade products, Level 3 of first-grade products and acceptable products (see 4.2.1);
——The relevant requirement that infants and children swimming suits meet the relevant requirements of GB 31701 is added (see 4.2.4);
——The requirement that lining meet those specified in GB 18401 is added (see 4.2.5);
——The description of defect spot degree is added (see 4.3.1);
——The measurement diagram is modified (see 5.2.2; 4.3.3 of Edition 2010);
——The stitch density requirements are deleted (4.3.6 of Edition 2010);
——Annex A is deleted, and the test of colour transfer degree in seams shall comply with Method A in GB/T 31127-2014 (see 5.1.2.15; Annex A of Edition 2010).
This standard was proposed by China National Textile and Apparel Council.
This standard is under the jurisdiction of SAC/TC 209/SC 6 Technical Subcommittee on Knitwear of the National Technical Committee on Textiles of the Standardization Administration of China.
The previous editions of this standard replaced by this standard are as follows:
——FZ/T 73013-1998, FZ/T 73013-2004 and FZ/T 73013-2010.
Knitted Swimming Suits
1 Scope
This standard specifies the product classification and model, requirements, test methods, judgement rules as well as product instruction, packaging, transport and storage of knitted swimming suits.
This standard is applicable to appraise the quality of knitted swimming suits produced with knitted fabric as the main fabric; it may apply by reference for swimming suits made of other textile fabrics.
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 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 - Colour 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 Colour Fastness - Colour Fastness to Perspiration
GB/T 4856 Package of Cotton Goods and Knitwear
GB/T 5713 Textiles - Tests for Colour Fastness - Colour Fastness to Water
GB/T 5714 Textiles - Tests for Colour Fastness - Colour Fastness to Sea Water
GB/T 5296.4 Instructions for Use of Products of Consumer Interest - Part 4: Textiles and Apparel
GB/T 6529 Textiles - Standard Atmospheres for Conditioning and Testing
GB/T 7573 Textiles - Determination of pH of Aqueous Extract
GB/T 8427-2008 Textiles - Tests for Colour Fastness - Color 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 8878 Knitted Cotton 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 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 29862 Textiles - Identification of Fiber Content
FZ/T 01057 (all parts) Test Method for Identification of Textile Fibers
FZ/T 01095 Textile - Test Method of Elastane Fibre Content
FZ/T 70006 Stretch and Recovery Testing Method for Knits
FZ/T 73012 Brassiere
GSB 16-2159 Knitwear Standard Depth Scale (1/12)
GSB 16-2500 Sample Photos of Surface Defects of Knitted Fabric
3 Product Classification and Size
3.1 Knitted swimming suits are classified into three types, i.e. one-piece swimming suits, two-piece swimming suits and swimming trunks.
3.2 The size of one-piece swimming suit: suitable net height and net bust shall be marked in centimeters.
3.3 As for two-piece swimming suits, suitable net height, net bust and net hip girth shall be marked in centimeters, among which, the upper wear with cups shall be marked in accordance with FZ/T 73012.
3.4 As for swimming trunks, suitable net height and net hip girth shall be marked in centimeters.
4 Requirements
The requirements are divided into inherent quality requirements and appearance quality requirements. The inherent quality covers indexes such as fiber content, formaldehyde content, pH value, peculiar smell, decomposable carcinogenic aromatic amine dyes, elastic elongation, elastic recovery percentage of elongation for resistance to chlorinated water (swimming-pool water), color fastness to soaping, color fastness to perspiration, color fastness to water, color fastness to seawater, color fastness to rubbing, color fastness to chlorinated water (swimming-pool water), color fastness to light and color fastness to patchwork; the appearance quality covers indexes such as surface defect spot, deviation of specification and dimension, dimensional difference at symmetric parts and sewing requirements.
4.1 Grading requirements
4.1.1 Quality grade is classified into high-grade products, first-grade products and acceptable products.
4.1.2 Quality grading: the inherent quality is graded by batch (delivery batch) while the appearance quality is graded by piece, the overall quality shall be graded by taking into all of them and the minimum grade prevail.
4.1.3 The inherent quality index with the worst test result is used as the grading basis for this batch of products.
4.1.4 The appearance quality is graded according to surface defect spot, deviation of specification and dimension, dimensional difference in itself and sewing requirements. Where appearance defects of different grades are found on the same product, the product shall be graded according to the defect spot of the minimum grade.
4.1.5 For one product, only two limit surface defect spots of the same grade are allowed; otherwise, it shall be reduced by one grade.
4.2 Inherent quality requirements
4.2.1 For inherent quality requirements, see Table 1.
Table 1 Inherent Quality Requirements
Item High-grade product First-grade product Accepted product
Fiber content/% In accordance with the requirements of GB/T 29862
Formaldehyde content /(mg/kg) In accordance with the requirements of GB 18401.
pH value
Peculiar smell
Decomposable carcinogenic aromatic amine dyes /(mg/kg)
Elastic elongation/%≥ Longitudinal 120 100 80
Horizontal 100 80 70
Elastic recovery percentage of elongation for resistance to chlorinated water (swimming-pool water)/%≥ Longitudinal 70 65 60
Horizontal 70 65 60
Color fastness/grade≥ Color fastness to soaping Discoloration 4 3
Staining 3-4 3 (dark color 2-3)
Color fastness/grade ≥ Color fastness to perspiration Discoloration 4 3 (swimming suits for infants and children: 3-4)
Staining 3-4 3 (swimming suits for infants and children: 3-4)
Color fastness to water Discoloration 3-4 3 (swimming suits for infants and children: 3-4)
Staining 3-4 3 (infants and children: 3-4)
Color fastness to seawater Discoloration 4 3-4 3
Staining 3 3
Color fastness to rubbing Dry rubbing 4 3 (swimming suits for infants and children: 4)
Wet rubbing 4 3 (dark color 2-3)
Color fastness to chlorinated water (swimming-pool water) Discoloration 4 3 2-3
Color fastness to light Discoloration 4 3
Fluorescence color 3 Not assessed
Color fastness to patchwork Staining 3-4 3 2-3
The color code grading shall be in accordance with GSB 16-2159, with those darker than 1/12 standard depth defined as dark and those lighter than or equal to 1/12 standard depth defined as light.
4.2.2 Assessment on color fastness to patchwork is only applicable to products with deep color spliced with light color and is not applicable to light-colored decorative strip and Pilcot edge.
4.2.3 Assessment on longitudinal elastic elongation and elastic recovery percentage of elongation to chlorinated water (swimming-pool water) is not applicable to two-piece swimming suits.
4.2.4 Infant and children's swimming suits shall be in accordance with the relevant requirements of GB 31701.
4.2.5 The lining shall be in accordance with those specified in GB 18401.
4.3 Appearance quality requirements
4.3.1 Requirements for appearance quality grading
See Table 2 for grading requirements of surface defect spots.
Foreword i
1 Scope
2 Normative References
3 Product Classification and Size
4 Requirements
5 Test
6 Judgment Rules
7 Product Instruction, Packaging, Transport and Storage
