Detail of FZ/T 73062-2019

Introduction of FZ/T 73062-2019

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 standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China National Textile and Apparel Council. This standard is under the jurisdiction of SAC/TC 209/SC 69 Technical Subcommittee on Knitwear of the National Technical Committee on Textiles of the Standardization Administration of China. Knitted beachwear 1 Scope This standard specifies the terms and definitions, product size designation, requirements, tests, judgment rules, product instructions, packaging, transport and storage of knitted beachwear. This standard is applicable to identifying the quality of knitted beachwear mainly made of knitted fabric. This standard may also serve as a reference for other clothing products. This standard is not applicable to the garment for infants of 36 months or below. 2 Normative references The following referenced documents are indispensable for the purpose of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour GB/T 1335 (all parts) Standard sizing systems for garments 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 5296.4 Instructions for use of products of consumer interest - Part 4: Textiles and apparel 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 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 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 8427-2008 Textiles - Tests for colour fastness - Colour fastness to artificial light: Xenon arc fading lamp test GB/T 8629-2017 Textiles - Domestic washing and drying procedures for textile testing GB/T 8878 Knitted cotton underwear GB/T 9994 Conventional moisture regains of textile materials GB/T 14576 Textiles - Testing method for complex colour fastness to light-perspiration GB/T 17592 Textiles - Determination of the banned azo colourants GB 18401 National general safety technical code for textile products GB/T 19976-2005 Textiles - Determination of bursting strength - Steel ball method 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 FZ/T 01026 Textiles - Quantitative chemical analysis - Multinary fibre mixtures FZ/T 01057 (all parts) Test method for identification of textile fibers FZ/T 01095 Textile - Test method of elastane fibre content FZ/T 01101 Textile test method - Fiber content - Quantitative physical analysis GSB 16-2159 Knitwear standard depth scale (1/12) GSB 16-2500 Colour sample photos of surface defect on knitted fabrics 3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 beachwear an outer garment for outdoor wear, including beach skirts, beach trousers, beach outer garment, etc. 3.2 children’s wear the garment for children of 3 to 14 years old 4 Product size designation The size designation shall be carried out according to the requirements of GB/T 6411 or GB/T 1335 (all parts). For products with special style, specifications and dimensions of main parts shall be marked in centimeters according to design requirements, such as: length × width, like beach shawl, etc. 5 Requirements 5.1 Requirements content The requirements involve inherent quality and appearance quality. Inherent quality includes indexes for bursting strength, fiber content, formaldehyde content, pH value, peculiar smell, decomposable carcinogenic aromatic amine dyestuff, dimensional stability to washing, colour fastness to soaping, water, perspiration, sea water, rubbing and light, as well as colour fastness to light of textiles wetted with artificial perspiration, colour fastness to transfer in joints, and appearance quality after washing; the appearance quality includes indexes for surface defect, specification and dimension deviation, dimensional difference in symmetrical positions, and sewing requirements. 5.2 Grading requirements 5.2.1 The products are classified into superior products, first-grade products and acceptable products in terms of the quality grade. 5.2.2 The products are graded by batches in terms of inherent quality and by pieces in terms of appearance quality, and shall take the lowest grade in case of a combination of both. 5.2.3 For all inherent quality indexes, the worst test result is regarded as the grading basis for this batch of products. 5.2.4 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, no more than two limit surface defects of the same grade are allowed to exist; otherwise, this product shall be degraded by one grade. 5.3 Requirements for inherent quality 5.3.1 See Table 1 for the requirements for inherent quality Table 1 Requirements for inherent quality Project Superior product First-grade product Acceptable product Bursting strength / N ≥ 250 Fiber content / % The test shall be carried out according to the requirements of GB/T 29862 Formaldehyde content / (mg/kg) The test shall be carried out according to the requirements of GB 18401 pH value Peculiar smell Decomposable carcinogenic aromatic amine dyestuff/ (mg/kg) Dimensional stability to washing /% Longitudinal ≥ -5.0 -7.0 Horizontal ≥ -5.0 -8.0 Colour fastness to soaping/grade ≥ Discoloration 4 3-4 3 Staining 3-4 3-4 3 Colour fastness to water/grade ≥ Discoloration 4 3-4 3 Staining 3-4 3 3 Colour fastness to perspiration/grade ≥ Discoloration 4 3-4 3 Staining 3-4 3 3 Colour fastness to sea water/grade ≥ Discoloration 4 3-4 3 Staining 3 Colour fastness to rubbing/grade ≥ Dry rubbing 4 3-4 3 Wet rubbing 3 3 (dark 2-3) 2-3 (dark 2) Children’s products 2-3 Colour fastness to light/grade ≥ Dark colour 4-5 4 3 Light colour 4 3 3 Colour fastness to light of textiles wetted with artificial perspiration (alkaline)/grade ≥ 4-5 3-4 3-4 Colour fastness to transfer in joints/grade ≥ Staining 4-5 4 4 Appearance quality after washing Free from holes, shedding of button and adorned fittings, and obvious change in colour after washing. Note: For 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. 5.3.2 Elastic fabrics refers to fabric containing elastic fiber or rib fabric. 5.3.3 Elastic fabrics and products with hollowed-out, rib and burnt-out structures are not assessed for the bursting strength. 5.3.4 Elastic fabrics are not assessed for the horizontal dimensional stability to washing, shorts and short skirts are not assessed for the dimensional stability to washing, and wrinkled products are not assessed for the dimensional stability to washing in wrinkling direction. 5.3.5 The natural-colour and bleached products are not assessed for the colour fastness to soaping, water, perspiration, sea water, and rubbing.

Contents of FZ/T 73062-2019

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Product size designation 5 Requirements 6 Test 7 Judgment rules 8 Product instruction, packaging, transport and storage