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GB/T 29868-2020   Sports protective products—Knitted products general technical requirements (English Version)
Standard No.: GB/T 29868-2020 Status:valid remind me the status change

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Standard No.: GB/T 29868-2020
English Name: Sports protective products—Knitted products general technical requirements
Chinese Name: 运动防护用品 针织类基本技术要求
Chinese Classification: W63    Knit articles
Professional Classification: GB    National Standard
ICS Classification: 59.080.30 59.080.30    Textile fabrics 59.080.30
Issued by: SAMR; SAC
Issued on: 2020-11-19
Implemented on: 2021-6-1
Status: valid
Superseding:GB/T 29868-2013 General technical criterion for knitted sports protection article
Language: English
File Format: PDF
Word Count: 3500 words
Price(USD): 90.0
Delivery: via email in 1 business day
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 replaces GB/T 29868-2013 General technical criterion for knitted sports protection article and the following main changes have been made with respect to GB/T 29868-2013: ——The application scope of this standard is modified (see Clause 1; Clause 1 of Edition 2013); ——The normative references are modified and supplemented (see Clause 2; Clause 2 of Edition 2013); ——Some indexes and specifications are revised, including increasing the color fastness to wet rubbing, changing the name of "metal hazards" to "sharp objects such as metal needles", changing the examination item of tensile elastic recovery rate from "horizontal" to "extended", and adding the conditions for not examining this item (see Table 1 and 3.3; Table 1 and 3.3 of Edition 2013); ——The test method for tensile elastic recovery rate is modified (see 4.9; 4.8 of Edition 2013); This standard was proposed by China National Textile and Apparel Council. This standard is under the jurisdiction of SAC/TC 291 National Technical Committee on Sports Goods of Standardization Administration of China. The previous edition of this standard is as follows: ——GB/T 29868-2013. Sports protective products - Knitted products general technical requirements 1 Scope This standard specifies the basic technical requirements, testing methods and sampling rules of knitted sports protective products. Other requirements for sports protective products shall be executed according to relevant product standards. This standard is applicable to knitted sports protective products which are woven with textile fiber as the main raw material and formed by knitting technology or which are made by combining knitted fabrics with polyurethane foam materials, including ankle protection, leg protection, knee protection, waist protection, wrist protection, arm protection, elbow protection, shoulder pad and headband. This standard is not applicable to the sports protective products for infants of 36 months or below. 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 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 3922 Textiles - Tests for color fastness - Color fastness to perspiration GB/T 5713 Textiles - Tests for color fastness - Color fastness to water GB/T 7573 Textiles - Determination of pH of aqueous extract GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 17592 Textiles - Determination of the banned azo colorants GB/T 17593.1 Textiles - Determination of heavy metals - Part 1: Atomic absorption spectrophotometry GB/T 17593.2 Textiles - Determination of heavy metals - Part 2: Inductively coupled plasma atomic emission spectrometry GB/T 17593.4 Textiles - Determination of heavy metals - Part 4: Arsenic and mercury - Atomic fluorescence spectrophotometry GB 18401 National general safety technical code for textile products GB/T 24121 Textile products - Determination of the remains of broken sewing needle GB/T 24153 Rubber and elastomer materials - Determination of N-nitrosamines GB 31701 Safety technical code for infants and children textile products FZ/T 70006-2004 Stretch and recovery testing method for knits 3 Basic technical requirements 3.1 The basic technical requirements shall be in accordance with those specified in Table 1. Table 1 Basic technical requirements Item Technical requirements Colour fastness to perspiration/grade ≥ Discolouring 3 Staining 3 Colour fastness to water/grade ≥ Discolouring 3 Staining 3 Colour fastness to rubbing/grade ≥ Dry rubbing 3 Wet rubbing 2-3 Formaldehyde content/ (mg/kg) In accordance with those specified in GB 18401 pH value Peculiar smell Decomposable carcinogenic aromatic amine dyes/ (mg/kg) Sharp objects such as metal needles Absent Tensile elastic recovery rate /% ≥ Extended 88 Extractable heavy metal/(mg/kg) ≤ Lead (Pb) 1.0 Cadmium (Cd) 0.1 Arsenic (As) 1.0 N-nitrosamine /(mg/kg) Absent 3.2 The products for children shall meet the requirements of GB 31701. 3.3 The tensile elastic recovery rate is only assessed for cylindrical products containing elastic materials such as spandex and rubber bands, and products fitted with knitted fabric and polyurethane foam are not assessed. 3.4 In the N-nitrosamine item, only rubber bands used in protective gear are tested. See Annex A for the list of N-nitrosamines that cannot be detected, and the limit value is less than or equal to 0.5mg/kg. 4 Inspection methods 4.1 Test for color fastness to perspiration In accordance with GB/T 3922. 4.2 Test for color fastness to water In accordance with GB/T 5713. 4.3 Test for colour fastness to rubbing In accordance with GB/T 3920, the general assessment is longitudinal direction. 4.4 Test for formaldehyde content In accordance with GB/T 2912.1. 4.5 pH value test In accordance with GB/T 7573. 4.6 Peculiar smell test In accordance with GB 18401. 4.7 Test for decomposable carcinogenic aromatic amine dyes In accordance with GB/T 17592. 4.8 Test for sharp objects such as metal needles In accordance with GB/T 24121; test sensitivity (standard iron ball test card): 1.0mm. 4.9 Test for tensile elastic recovery rate In accordance with FZ/T 70006-2004, 8.3.2.2. Only the extension direction of the product is tested, generally the transverse tension. No damage to products, double-layer clamping. The width of the clamp is greater than or equal to 50mm, the constant speed of the holder movement is 300mm/min, the return speed is 300mm/min, the fixed force is 35N, and the number of repeated stretching times is 3. According to the size of the specimen, the distance length of the tester may be 50mm or 100mm. If the height of the product, that is, the width of the clamped specimen, is less than 50mm, test according to the actual size. For products with elastic mouth, the elastic mouth may be clamped; for products without elastic mouth, any part may be clamped. The average of three specimens shall be taken and rounded to an integer according to GB/T 8170.   4.10 Test for extractable heavy metals Tests for extractable heavy metal plumbum (Pb) and cadmium (Cd) shall be carried out according to GB/T 17593.1, and tests for heavy metal arsenic (As) shall be carried out according to GB/T 17593.4. Or the heavy metals such as plumbum (Pb), cadmium (Cd) and arsenic (As) can be measured according to GB/T 17593.2. 4.11 N-nitrosamine test In accordance with GB/T 24153. When using gas chromatography-mass spectrometry (GC-MS) to test the content of N-nitrosamine, there may be false positive result. If yes, it is recommended to use high performance liquid chromatography-mass spectrometer (HPLC-MS/MS) or other suitable methods to confirm the result. 5 Sampling rules Randomly sample according to the delivery batch, and the quantity shall ensure that each test in Clause 4 is done once.
Foreword II 1 Scope 2 Normative references 3 Basic technical requirements 4 Inspection methods 5 Sampling rules Annex A (Normative) List of N-nitrosamines that shall not be detected
Referred in GB/T 29868-2020:
*GB/T 2912.1-2009 Textiles—Determination of formaldehyde—Part 1:Free and hydrolyzed formaldehyde(water extraction method)
*GB/T 3920-2008 Textiles—Tests for colour fastness—Colour fastness to rubbing
*GB/T 3922-2013 Textiles - Testing method for colour fastness to perspiration
*GB/T 5713-2013 Textiles-Tests for colour fastness - Colour fastness to water
*GB/T 7573-2009 Textiles—Determination of pH of aqueous extract
*GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
*GB/T 17592-2011 Textiles―Determination of the banned azo colourants
*GB/T 17593.1-2006 Textiles―Determination of heavy metals―Part 1: Atomic absorption spectrophotometry
*GB/T 17593.2-2007 Textiles—Determination of heavy metals—Part 2:Inductively coupled plasma atomic emission spectrometry
*GB/T 17593.4-2006 Textiles―Determination of heavy metals―Part 4: Arsenic and mercury ―Atomic fluorescence spectrophotometry
*GB 18401-2010 National general safety technical code for textile products
*GB/T 24121-2009 Textile products—Determination of the remains of broken sewing needle
*GB/T 24153-2009 Rubber and elastomer materials—Determination of N-nitrosamines
*GB 31701-2015 Safety Technical Code for Infants and Children Textile Products
*FZ/T 70006-2004 Stretch and recovery testing method for knits
GB/T 29868-2020 is referred in:
*DB13/T 1481-2011
*GB 5599-1985 Railway vehicles; Specification for evaluation the dynamic performance and accreditation test
*DB62/T 2239-2012
*DB11/Z 370-2006
*DB12/ 356-2008
*DB50/ 418-2012
*DB14/T 534-2009
*DB14/T 533-2009
*DB14/T 575-2010
*DB32/T 1553-2009
*GB 6011-1985 Test method for flammability characteristics of fiber-reinforced plastics; Incandescent rod method
*GB/T 5142-1985 Reach and straddle fork lift trucks; Stability tests
*GB/T 3452.3-1988 Fluid power systems-O-Ring-Design criteria for O-Ring housing-Basic calculation
*GB 50389-2006 Code for construction and acceptance of 750kV overhead transmission line
*YY/T 1240-2014 D-Dimer reagent (kit)
Code of China
Standard
GB/T 29868-2020  Sports protective products—Knitted products general technical requirements (English Version)
Standard No.GB/T 29868-2020
Statusvalid
LanguageEnglish
File FormatPDF
Word Count3500 words
Price(USD)90.0
Implemented on2021-6-1
Deliveryvia email in 1 business day
Detail of GB/T 29868-2020
Standard No.
GB/T 29868-2020
English Name
Sports protective products—Knitted products general technical requirements
Chinese Name
运动防护用品 针织类基本技术要求
Chinese Classification
W63
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2020-11-19
Implemented on
2021-6-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 29868-2013 General technical criterion for knitted sports protection article
Language
English
File Format
PDF
Word Count
3500 words
Price(USD)
90.0
Keywords
GB/T 29868-2020, GB 29868-2020, GBT 29868-2020, GB/T29868-2020, GB/T 29868, GB/T29868, GB29868-2020, GB 29868, GB29868, GBT29868-2020, GBT 29868, GBT29868
Introduction of GB/T 29868-2020
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 replaces GB/T 29868-2013 General technical criterion for knitted sports protection article and the following main changes have been made with respect to GB/T 29868-2013: ——The application scope of this standard is modified (see Clause 1; Clause 1 of Edition 2013); ——The normative references are modified and supplemented (see Clause 2; Clause 2 of Edition 2013); ——Some indexes and specifications are revised, including increasing the color fastness to wet rubbing, changing the name of "metal hazards" to "sharp objects such as metal needles", changing the examination item of tensile elastic recovery rate from "horizontal" to "extended", and adding the conditions for not examining this item (see Table 1 and 3.3; Table 1 and 3.3 of Edition 2013); ——The test method for tensile elastic recovery rate is modified (see 4.9; 4.8 of Edition 2013); This standard was proposed by China National Textile and Apparel Council. This standard is under the jurisdiction of SAC/TC 291 National Technical Committee on Sports Goods of Standardization Administration of China. The previous edition of this standard is as follows: ——GB/T 29868-2013. Sports protective products - Knitted products general technical requirements 1 Scope This standard specifies the basic technical requirements, testing methods and sampling rules of knitted sports protective products. Other requirements for sports protective products shall be executed according to relevant product standards. This standard is applicable to knitted sports protective products which are woven with textile fiber as the main raw material and formed by knitting technology or which are made by combining knitted fabrics with polyurethane foam materials, including ankle protection, leg protection, knee protection, waist protection, wrist protection, arm protection, elbow protection, shoulder pad and headband. This standard is not applicable to the sports protective products for infants of 36 months or below. 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 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 3922 Textiles - Tests for color fastness - Color fastness to perspiration GB/T 5713 Textiles - Tests for color fastness - Color fastness to water GB/T 7573 Textiles - Determination of pH of aqueous extract GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 17592 Textiles - Determination of the banned azo colorants GB/T 17593.1 Textiles - Determination of heavy metals - Part 1: Atomic absorption spectrophotometry GB/T 17593.2 Textiles - Determination of heavy metals - Part 2: Inductively coupled plasma atomic emission spectrometry GB/T 17593.4 Textiles - Determination of heavy metals - Part 4: Arsenic and mercury - Atomic fluorescence spectrophotometry GB 18401 National general safety technical code for textile products GB/T 24121 Textile products - Determination of the remains of broken sewing needle GB/T 24153 Rubber and elastomer materials - Determination of N-nitrosamines GB 31701 Safety technical code for infants and children textile products FZ/T 70006-2004 Stretch and recovery testing method for knits 3 Basic technical requirements 3.1 The basic technical requirements shall be in accordance with those specified in Table 1. Table 1 Basic technical requirements Item Technical requirements Colour fastness to perspiration/grade ≥ Discolouring 3 Staining 3 Colour fastness to water/grade ≥ Discolouring 3 Staining 3 Colour fastness to rubbing/grade ≥ Dry rubbing 3 Wet rubbing 2-3 Formaldehyde content/ (mg/kg) In accordance with those specified in GB 18401 pH value Peculiar smell Decomposable carcinogenic aromatic amine dyes/ (mg/kg) Sharp objects such as metal needles Absent Tensile elastic recovery rate /% ≥ Extended 88 Extractable heavy metal/(mg/kg) ≤ Lead (Pb) 1.0 Cadmium (Cd) 0.1 Arsenic (As) 1.0 N-nitrosamine /(mg/kg) Absent 3.2 The products for children shall meet the requirements of GB 31701. 3.3 The tensile elastic recovery rate is only assessed for cylindrical products containing elastic materials such as spandex and rubber bands, and products fitted with knitted fabric and polyurethane foam are not assessed. 3.4 In the N-nitrosamine item, only rubber bands used in protective gear are tested. See Annex A for the list of N-nitrosamines that cannot be detected, and the limit value is less than or equal to 0.5mg/kg. 4 Inspection methods 4.1 Test for color fastness to perspiration In accordance with GB/T 3922. 4.2 Test for color fastness to water In accordance with GB/T 5713. 4.3 Test for colour fastness to rubbing In accordance with GB/T 3920, the general assessment is longitudinal direction. 4.4 Test for formaldehyde content In accordance with GB/T 2912.1. 4.5 pH value test In accordance with GB/T 7573. 4.6 Peculiar smell test In accordance with GB 18401. 4.7 Test for decomposable carcinogenic aromatic amine dyes In accordance with GB/T 17592. 4.8 Test for sharp objects such as metal needles In accordance with GB/T 24121; test sensitivity (standard iron ball test card): 1.0mm. 4.9 Test for tensile elastic recovery rate In accordance with FZ/T 70006-2004, 8.3.2.2. Only the extension direction of the product is tested, generally the transverse tension. No damage to products, double-layer clamping. The width of the clamp is greater than or equal to 50mm, the constant speed of the holder movement is 300mm/min, the return speed is 300mm/min, the fixed force is 35N, and the number of repeated stretching times is 3. According to the size of the specimen, the distance length of the tester may be 50mm or 100mm. If the height of the product, that is, the width of the clamped specimen, is less than 50mm, test according to the actual size. For products with elastic mouth, the elastic mouth may be clamped; for products without elastic mouth, any part may be clamped. The average of three specimens shall be taken and rounded to an integer according to GB/T 8170.   4.10 Test for extractable heavy metals Tests for extractable heavy metal plumbum (Pb) and cadmium (Cd) shall be carried out according to GB/T 17593.1, and tests for heavy metal arsenic (As) shall be carried out according to GB/T 17593.4. Or the heavy metals such as plumbum (Pb), cadmium (Cd) and arsenic (As) can be measured according to GB/T 17593.2. 4.11 N-nitrosamine test In accordance with GB/T 24153. When using gas chromatography-mass spectrometry (GC-MS) to test the content of N-nitrosamine, there may be false positive result. If yes, it is recommended to use high performance liquid chromatography-mass spectrometer (HPLC-MS/MS) or other suitable methods to confirm the result. 5 Sampling rules Randomly sample according to the delivery batch, and the quantity shall ensure that each test in Clause 4 is done once.
Contents of GB/T 29868-2020
Foreword II 1 Scope 2 Normative references 3 Basic technical requirements 4 Inspection methods 5 Sampling rules Annex A (Normative) List of N-nitrosamines that shall not be detected
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Keywords:
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