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GB/T 21295-2014 English PDF (GB/T21295-2014)

GB/T 21295-2014 English PDF (GB/T21295-2014)

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GB/T 21295-2014: Requirements of physical and chemical performance of garments
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GB/T 21295-2014
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 61.020
Y 75
Replacing GB/T 21295-2007
Requirements of physical and
chemical performance of garments
ISSUED ON. SEPTEMBER 03, 2014
IMPLEMENTED ON. AUGUST 01, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the PRC.
Table of contents
Foreword ... 3 
Introduction ... 5 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 6 
4 Requirements ... 9 
5 Test method ... 17 
Appendix A (Normative) List of specific flame retardant substance ... 18 
Appendix B (Normative) List of specific substances for phthalates ... 19 
Appendix C (Normative) List of specific substances for alkylphenol (AP) and
alkylphenol ethoxylate (APEO) ... 20 
Foreword
This standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This standard replaces GB/T 21295-2007 “Requirements of physical and
chemical performance of garments”.
The main technical differences between this standard and GB/T 21295-2007
are as follows.
- ADD the introduction;
- ADD the normative references (SEE Chapter 2; Chapter 2 of the 2007
version);
- ADD and MODIFY the terms and definitions (SEE Chapter 3; Chapter 3 of
the 2007 version);
- ADD such color fastness requirements as heat press resistance (wet press
discoloration, staining), splicing dyeing degree (staining), dye migration
performance, phenol yellowing, and so on (SEE 4.3; 4.1 of 2007 version);
- ADD the requirements for flame retardant finishing agents, phthalates, total
lead content, alkylphenol (AP) and alkylphenol ethoxylates (APEO) (SEE
4.5, 4.6, 4.7, 4.8) ;
- MODIFY the size change rate requirements; ADD the appearance
requirements of the finished product after washing (SEE 4.10);
- CHANGE the “stich slipping” into “seam performance” and ADD the
corresponding requirements (SEE 4.11.2); ADD the wear resistance
requirements (SEE 4.11.5); MODIFY the of the pilling requirements (SEE
4.11.6); 4.6 of the 2007 version);
- DELETE the specific indicators on the thermal insulation rate and air
permeability (4.13 and 4.14 of 2007 version);
- ADD the requirements for the hydrostatic pressure, solar ultraviolet
radiation protective properties, snagging, moisture absorption quick-drying
performance, oil repellency, and soil release; (SEE 4.12.3, 4.12.4, 4.12.5,
4.12.6, 4.12.7, 4.12.8);
- ADD the detection method of technical requirements (SEE Chapter 5);
Introduction
GB/T 21295-2007 “Requirements of physical and chemical performance of
garments”, from the date of implementation, plays an important role on the
guidance for China's garment industry. To better adapt to the development of
the standardization development demands of China’s garment industry, it is
necessary to revise GB/T 21295.
The revision is based on the principles of providing industrial guidance and
leading the industrial development. As a basic standard for China’s garment
industry, GB/T 21295 can be used as the basis for enterprise reference, in
order to guide the product quality control and improvement of China’s garment
industry. Each production enterprise shall, based on this standard, select and
appropriately improve each technical indicator, AND strictly control its product
quality, in order to provide the safe garment products which satisfy the
consumers, thus promoting the stable and healthy development of China's
garment industry. In addition, since the development of new garment products
has become the creative activity of the development of China's garment
industry, in order to ensure the development of new products meets the market
demand, this standard can be used as an important reference basis for the
technical requirements in the product development process.
Requirements of physical and
chemical performance of garments
1 Scope
This standard specifies the requirements of physical and chemical
performance of garment products.
This standard applies to the garment products which are produced using the
textile fabrics as the main raw materials.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 3291.2 Textiles - Terms of textiles material properties and test - Part 2.
Fabric
GB/T 4841.3 Color cards of standard depths for dyeing with dyestuffs 2/1,
1/3, 1/6, 1/12, 1/25
GB/T 14644-1993 Fabrics - Burning behavior - The 45° test determination of
flame spread rate
GB/T 15557 Standard terminology relating to apparel
GB 18401 national textile products basic safety technical specifications
GB/T 21294-2014 National general safety technical code for textile products
GB/T 29862 Textiles - Identification of fiber content
3 Terms and definitions
The terms and definitions as specified in GB/T 3291.2 and GB/T 15557 AND
the following terms and definitions apply to this document.
3.1
It refers to the ability of the textiles to resist liquid water penetration, which is
expressed the hydrostatic pressure undertaken by the textiles.
Note. The hydrostatic pressure can be quantified into a pressure obtained at
the time when 3 water penetration points occur on one side of the textiles if
applying a continuously rising water pressure to the other side under the
specified test conditions.
3.7
Solar ultraviolet radiation protective properties
It refers to the ability of the textiles to protect from solar ultraviolet radiation.
Note. Solar ultraviolet radiation protective properties can be quantified as
using the UV to radiate the textiles, collecting the total spectral transmission
ray, determining the total spectral transmittance, AND calculating the UV
protection factor (UPF) value of the textile.
3.8
Snagging
It refers to the ability of the textile to resist its fiber or yarn from being hooked
out or hooked off.
3.9
Water absorption rate
It refers to the percentage of moisture absorbed by the textiles to the original
mass of the textiles when the textile is completely wetted in the water and
removed until there is no dripping water.
3.10
Drip diffusion time
It refers to the time required, after dripping the water droplet on the textile,
from the time the water droplet contacts the textile to the time when it is
completely diffused and penetrated into the textile.
3.11
Evaporation rate
The watermarking grade of the finished products having water repellency shall
be not less than 4.
4.12.3 Hydrostatic pressure
The hydrostatic pressure of the finished products having the rainproof
requirements shall be not less than 13 kPa; AND hydrostatic pressure of the
finished products having the stormproof requirements shall be not less than 35
kPa
4.12.4 Solar ultraviolet radiation protective properties
The requirements for UV-resistant finished products. UPF > 40 AND T (UVA) AV
< 5%.
4.12.5 Snagging
The snagging of the finished product with snagging requirements shall be not
less than grade 3 - 4.
4.12.6 Moisture absorption quick-drying performance
4.12.6.1 The moisture absorption quick-drying performance of the finished
products having the moisture absorption quick-drying requirements shall follow
the provisions of Table 18, AND the finished products for which each indicator
before and after washing reaches to the technical requirements may be clearly
indicated as the moisture absorption quick-drying products.
4.12.6.2 For the moisture absorption finished product, only the 3 indicators
related to moisture absorption are assessed; AND as for the quick-drying
finished products, only the 2 indicators related to quick-drying are assessed.
Table 18
Item Technical requirements
Moisture absorption
Water absorption rate / % ≥ 100
Drip diffusion time / s ≤ 5
Wicking height / mm ≥ 90
Quick-drying Evaporation rate / (g/h) ≥ 0.18 Water vapour transmission rate / [g/(m2•24h)] ≥ 8000
Note. The wicking height assessment is conducted longitudinally or crosswise, whichever is larger.
4.12.7 Oil repellency
The oil repellency grade of the finished products having the oil repellency
requirements shall be not less than 4.
4.12.8 Soil release
GB/T 21295-2014
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 61.020
Y 75
Replacing GB/T 21295-2007
Requirements of physical and
chemical performance of garments
ISSUED ON. SEPTEMBER 03, 2014
IMPLEMENTED ON. AUGUST 01, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the PRC.
Table of contents
Foreword ... 3 
Introduction ... 5 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 6 
4 Requirements ... 9 
5 Test method ... 17 
Appendix A (Normative) List of specific flame retardant substance ... 18 
Appendix B (Normative) List of specific substances for phthalates ... 19 
Appendix C (Normative) List of specific substances for alkylphenol (AP) and
alkylphenol ethoxylate (APEO) ... 20 
Foreword
This standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This standard replaces GB/T 21295-2007 “Requirements of physical and
chemical performance of garments”.
The main technical differences between this standard and GB/T 21295-2007
are as follows.
- ADD the introduction;
- ADD the normative references (SEE Chapter 2; Chapter 2 of the 2007
version);
- ADD and MODIFY the terms and definitions (SEE Chapter 3; Chapter 3 of
the 2007 version);
- ADD such color fastness requirements as heat press resistance (wet press
discoloration, staining), splicing dyeing degree (staining), dye migration
performance, phenol yellowing, and so on (SEE 4.3; 4.1 of 2007 version);
- ADD the requirements for flame retardant finishing agents, phthalates, total
lead content, alkylphenol (AP) and alkylphenol ethoxylates (APEO) (SEE
4.5, 4.6, 4.7, 4.8) ;
- MODIFY the size change rate requirements; ADD the appearance
requirements of the finished product after washing (SEE 4.10);
- CHANGE the “stich slipping” into “seam performance” and ADD the
corresponding requirements (SEE 4.11.2); ADD the wear resistance
requirements (SEE 4.11.5); MODIFY the of the pilling requirements (SEE
4.11.6); 4.6 of the 2007 version);
- DELETE the specific indicators on the thermal insulation rate and air
permeability (4.13 and 4.14 of 2007 version);
- ADD the requirements for the hydrostatic pressure, solar ultraviolet
radiation protective properties, snagging, moisture absorption quick-drying
performance, oil repellency, and soil release; (SEE 4.12.3, 4.12.4, 4.12.5,
4.12.6, 4.12.7, 4.12.8);
- ADD the detection method of technical requirements (SEE Chapter 5);
Introduction
GB/T 21295-2007 “Requirements of physical and chemical performance of
garments”, from the date of implementation, plays an important role on the
guidance for China's garment industry. To better adapt to the development of
the standardization development demands of China’s garment industry, it is
necessary to revise GB/T 21295.
The revision is based on the principles of providing industrial guidance and
leading the industrial development. As a basic standard for China’s garment
industry, GB/T 21295 can be used as the basis for enterprise reference, in
order to guide the product quality control and improvement of China’s garment
industry. Each production enterprise shall, based on this standard, select and
appropriately improve each technical indicator, AND strictly control its product
quality, in order to provide the safe garment products which satisfy the
consumers, thus promoting the stable and healthy development of China's
garment industry. In addition, since the development of new garment products
has become the creative activity of the development of China's garment
industry, in order to ensure the development of new products meets the market
demand, this standard can be used as an important reference basis for the
technical requirements in the product development process.
Requirements of physical and
chemical performance of garments
1 Scope
This standard specifies the requirements of physical and chemical
performance of garment products.
This standard applies to the garment products which are produced using the
textile fabrics as the main raw materials.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 3291.2 Textiles - Terms of textiles material properties and test - Part 2.
Fabric
GB/T 4841.3 Color cards of standard depths for dyeing with dyestuffs 2/1,
1/3, 1/6, 1/12, 1/25
GB/T 14644-1993 Fabrics - Burning behavior - The 45° test determination of
flame spread rate
GB/T 15557 Standard terminology relating to apparel
GB 18401 national textile products basic safety technical specifications
GB/T 21294-2014 National general safety technical code for textile products
GB/T 29862 Textiles - Identification of fiber content
3 Terms and definitions
The terms and definitions as specified in GB/T 3291.2 and GB/T 15557 AND
the following terms and definitions apply to this document.
3.1
It refers to the ability of the textiles to resist liquid water penetration, which is
expressed the hydrostatic pressure undertaken by the textiles.
Note. The hydrostatic pressure can be quantified into a pressure obtained at
the time when 3 water pene...
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