FZ/T 73049-2024 English PDFUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. FZ/T 73049-2024: (Knitted masks) Status: Valid FZ/T 73049: Historical versions
Basic dataStandard ID: FZ/T 73049-2024 (FZ/T73049-2024)Description (Translated English): (Knitted masks) Sector / Industry: Spinning & Textile Industry Standard (Recommended) Classification of Chinese Standard: W63 Classification of International Standard: 59.080.30 Word Count Estimation: 11,120 Date of Issue: 2024-07-05 Date of Implementation: 2026-07-01 Older Standard (superseded by this standard): FZ/T 73049-2014 Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China Summary: This standard specifies the specifications, requirements, tests, sampling rules, judgment rules, product instructions, packaging, transportation and storage of knitted masks. FZ/T 73049-2014: Knitted Mask---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Knitted mask ICS 59.080.30 W63 People's Republic of China Textile Industry Standard Knitted mask 2014-10-14 release 2015-04-01 Implementation Published by the Ministry of Industry and Information Technology of the People's Republic of China ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Textiles (SAC/TC209/SC6). This standard was drafted. Langsha Knitting Co., Ltd., Chongqing Fiber Fabric Inspection Bureau, China Knitting Industry Association. The main drafters of this standard. Liu Ailian, He Yong, Li Hong, Gao Wanqing. Knitted mask1 ScopeThis standard specifies the specifications, requirements, tests, judgment rules, product instructions, packaging, transportation and storage of knitted masks. This standard applies to the identification of the quality of masks made of knitted fabrics as the main material. This standard does not apply to medical masks and labor protection masks. This standard does not apply to infants and young children aged 36 months and under apparel.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 2910 (all parts) Quantitative chemical analysis of textiles GB/T 2912.1 Determination of formaldehyde in textiles-Part 1. Free and hydrolyzed formaldehyde (water extraction method) GB/T 3920 Textile color fastness test GB/T 3921-2008 Textiles color fastness test soaping fastness GB/T 3922 Test method for color fastness to sweat of textiles GB/T 4856 Needle cotton packing GB 5296.4 Instructions for the use of consumer goods-Part 4. Textiles and clothing GB/T 5453 Determination of air permeability of textile fabrics GB/T 5713 Textile color fastness test GB/T 7573 Determination of pH value of textile water extract GB 9994 Textile moisture regain GB/T 17592 Determination of banned azo dyes in textiles GB 18401 National Safety Technical Specification for Textile Products GB/T 18886 Color fastness test of textiles GB/T 29862 Textile fiber content identification FZ/T 01026 Four-component fiber mixture for quantitative chemical analysis of textiles FZ/T 01057 (all parts) Textile fiber identification test method FZ/T 01095 Test method for fiber content of textile spandex products GSB16-2500 Color samples of surface defects on knitted fabrics3 SpecificationsThe main specifications of knitted masks are expressed as. length × width, where both length and width are expressed in centimeters.4 Requirements4.1 Requirements Requirements are divided into intrinsic quality and appearance quality. Intrinsic quality includes pH value, formaldehyde content, odor, decomposable carcinogenic aromatic amine dye, fiber Dimensional content, color fastness to soaping, color fastness to water, color fastness to saliva, color fastness to friction, color fastness to sweat, and air permeability; etc. Observed quality includes indicators such as surface defects and sewing regulations. 4.2 Grading regulations 4.2.1 The quality level is divided into qualified products only. 4.2.2 The internal quality is judged by criticism, and the external quality is judged by piece. Both must meet the required requirements. 4.3 Inherent quality requirements See Table 1 for intrinsic quality requirements. Table 1 Inherent quality requirements Project Qualified Products pH value Formaldehyde content/(mg/kg) Peculiar smell Decomposable carcinogenic aromatic amine dyes/(mg/kg) Implemented according to GB 18401A Fiber content /% according to GB/T 29862 Color fastness to soaping/grade ≥ Discoloration 4 Stain 4 Water fastness/grade ≥ Discoloration 4 Stain 4 Saliva color fastness/grade ≥ Discoloration 4 Stain 4 Color fastness to rubbing/grade ≥ Ganma 4 Wet Mount 3-4 Color fastness to perspiration/grade ≥ Discoloration 4 Stain 4 Air permeability/(mm/s) ≥ 250 4.4 Appearance quality requirements 4.4.1 Surface defect requirements See Table 2 for surface defects. Table 2 Surface defect requirements Serial Number Defect Name Qualified Product1 Jump stitches are not allowed2 Holes, scars, missing needles, and oil are not allowed 3 Color flowers, stains, stains, and minor scratches are allowed 4 flower needles allow 3 small flower needles Note 1. The degree of surface defects shall be implemented in accordance with GSB16-2500 "Color Samples of Surface Defects of Knitted Fabrics". Note 2. Defect degree description. --- Minor. The defect is not obvious visually and can only be seen by careful identification. --- Obvious. Does not affect the overall effect, but can feel the existence of defects. 4.4.2 Sewing regulations 4.4.2.1 The stitches in all parts are suitable for tightness, to ensure that the thread does not come off or break after stretching, and no seams are allowed to leak. 4.4.2.2 The straps are sewn securely and the length is appropriate.5 Test5.1 Inner quality inspection 5.1.1 Test preparation and test conditions The samples taken must not have defects that affect the test. 5.1.2 Test method 5.1.2.1 pH test Implemented according to GB/T 7573. 5.1.2.2 Formaldehyde content test Implemented according to GB/T 2912.1. 5.1.2.3 Odor test Implemented according to GB 18401. 5.1.2.4 Decomposable carcinogenic aromatic amine dye test Implemented according to GB/T 17592. 5.1.2.5 Fiber content test Executed according to GB/T 2910, FZ/T 01026, FZ/T 01057, FZ/T 01095, combined with the calculated regain, the calculated regain The rate is implemented in accordance with the provisions of GB 9994. 5.1.2.6 Color fastness test to soaping It is implemented according to the method A (1) of GB/T 3921-2008. 5.1.2.7 Water fastness test Implemented according to GB/T 5713. 5.1.2.8 Saliva color fastness test Executed in accordance with GB/T 18886, testing only the skin-facing surface. 5.1.2.9 Color fastness to rubbing test Implemented in accordance with GB/T 3920, only straight. 5.1.2.10 Color fastness to sweat Implemented in accordance with GB/T 3922. 5.1.2.11 Air permeability test According to GB/T 5453, the pressure drop on both sides of the sample is 100Pa, the test area is 20cm2, the test surface is skin-closed, and the test area Is the central area of the mask. Test 3 pieces, one test per mask, and use the arithmetic mean of the test results of 3 masks as the final test result. 5.2 Appearance quality inspection 5.2.1 Light inspection is generally used. A 40W white light fluorescent lamp is used. A lampshade is added on the top. The vertical distance between the lampshade and the center of the inspection table is 80cm ± 5cm. 5.2.2 If natural light is used indoors, the incident direction of the light source is north to the left (or right) upper corner, and the product cannot be directly exposed to sunlight. 5.2.3 During the inspection, the product should be evenly spread on the inspection table, and the table should be covered with a layer of white cloth. The inspector's sight should be squarely facing the surface of the product. The distance between the light and the product is 35cm or more. 5.2.4 Measurement locations and regulations 5.2.4.1 Measurement site The measurement site is shown in Figure 1. Explanation. 1 --- mask length; 2 --- Mask is wide. Figure 1 Schematic diagram of the mask measurement site 5.2.4.2 Measurement requirements for various parts See Table 3 for the measurement requirements of each part. Table 3 Measurement requirements for each part Serial number part measurement method 1 The length of the mask is 1/2 of the left and right sides of the mask. 2 Mask width is measured vertically at 1/2 of the top and bottom of the mask6 Decision rules6.1 Sampling 6.1.1 Appearance quality Randomly sample 1% ~ 3% according to batch variety and color, not less than 20 pieces. If the batch is less than 20 pieces, all inspections will be conducted. 6.1.2 The inherent quality is to randomly sample 10 pieces according to the batch type and color, and the number of samples can be increased when insufficient. 6.2 Intrinsic quality According to the requirements of 4.3, if there is a non-compliance, the batch of products is judged to be unqualified. Among them, if the color fastness items do not match, press the color type The batch of products is judged to be unqualified. 6.3 Appearance quality The appearance quality is calculated according to the variety, color, and size. If the non-conformity rate is 5% or less, the batch of products is judged Pass; if the rate of non-conforming products is more than 5%, the batch of products is judged to be unqualified. 6.4 Retest 6.4.1 When either party disagrees with the results of the inspection, it may request re-inspection. 6.4.2 The re-inspection results shall be implemented in accordance with the provisions of 6.2 and 6.3. 7 Product instructions, packaging, transportation and storage 7.1 Product use instructions shall be implemented in accordance with GB 5296.4. Do not use durable labels. 7.2 Product packaging is in accordance with GB/T 4856. 7.3 The product transportation shall be moisture-proof, fire-proof and pollution-proof. 7.4 The product should be placed in a cool, ventilated, dry and clean warehouse, and protected from moth and mildew. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of FZ/T 73049-2024_English be delivered?Answer: Upon your order, we will start to translate FZ/T 73049-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of FZ/T 73049-2024_English with my colleagues?Answer: Yes. The purchased PDF of FZ/T 73049-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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