GB ××××× —××××  
ICS 97. 160  
W 09   
 
 
National Standard for the People’s Republic of China  
 
GB ××××× —××××  
 
 
 
Household  textiles - The limit s of water extraction material within  towel s 
 
 
(Draft for approval)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Released on ××/××/××××               Implemented o n ×× /××/××××  
Issued by  
 
General Administration of Quality Supervision,  Inspection and Quarantine of the People’s Republic of China  
Standardization Administration of the People’s Republic of ChinaGB ××××× —××××  
Introduction  
 
This Standard is formulated to eliminate the safety hazards caused by towels when they 
are first used, and safeguard the health of consumers.  
This Standard is proposed by the China National Textile & Apparel Council.  
This Standard is under the jurisdiction of the National Technical Committee on Home 
Textiles of the Standardization Administration of China.  
Drafting organization: Jiangsu Textile Product Quality Supervision, Inspection & Testing 
Centre . 
Drafted by : Li Hui, Shi Qing, Pang Qian . 
This standard is the first release.   GB ××××× —××××  
 
Household textiles - The limits of water extraction material within 
towels  
1. Scope  
This Standard specifies the requirements, sampling, inspection methods, inspection 
rules and mark ing with respect to the aqueous extracts in towels.  
This Standard is applicable to towels for washi ng purposes, such as bath towels, 
facial towels and kerchiefs.  
2. Normative references  
The following standards contain provisions which, through reference in this text, 
constitute provisions of this Standard. For dated reference, subsequent amendments to, or  
revisions of, any of these publications do not apply to this Standard. However, relevant 
parties reaching an agreement in line with this Standard are encouraged to explore the 
possibility of using the latest versions of these documents. For undated refere nces, the 
latest versions of the documents referred to apply to this Standard.  
GB/T 5711 Textiles -Tests for colour  fastness - Colour  fastness to dry cleaning (GB/T 
5711 -1997eqv ISO105/D01 1993)  
GB/T 8629 Textiles - Domestic washing and drying procedures for textile testing (GB/T 
8629 -2001eqv ISO 6330 2000)  
GB/T 18414.1 Textiles -- Determination of the residues of pentachlorophenol --Part 1:  
Gas chromatography/mass spectrog raphy  
3. Terms and Definitions  
The following terms are applicable to this Standard.  
3.1 Extract transparency   
The limpidity of liquid, which is related to the content of suspended substances and 
colloidal particles in the liquid.  
4 Requirement  
4.1 The limits of a queous extracts in towels are provided in Table 1.  
 
 Table 1 Limits of Aqueous Extracts in Towels  
 
Item  Unit Limit  
Pentachlorophenol (CAS 
No.87 -86-5) 
  mg/kg  
 
  
5.0 
 
Colour  stain   Class  3 
Extract  Transparency  mm 
 200  
Note: If a product is marked as “Use after Washing ”, a sample after 
washing shall be used to prepare the extract. The washing method is 
set forth in 6.5.  GB ××××× —××××  
 
5 Sampling  
5.1 Samples shall be drawn rand omly out of the products by both types and colours  
in line with the quantity that meets the requirement for all the tests.  
6 Inspection methods  
6.1 Measurement of pentachlorophenol shall be conducted subject to the standard 
specified under GB/T 18414.1.  
6.2 Prepara tion of extract . 
6.2.1 Tertiary water at a temperature of (20~25)   and a bath ratio of 50:1.  
6.2.2 Press the entire towel in water to get it completely wet, soak it for 5  
minutes, slightly rub the towel in water for 10 times, dry it and get it out 
of the water.  
6.2.3 The extract is used to test the liquid colour  stain and transpa rency.  
6.3 The liquid colour  stain of the extract shall be measured subject to Article 6.5 of 
GB/T 5711.  
6.4 Extract transparency testing . 
6.4.1 A diaphanometer with an ambient light illumination of no less than 
800lx.  
6.4.2 Shake the extract fully, empty it into a clean d iaphanometer with a liquid 
height of no less than 250mm, and leave it still for 1  minute.   
6.4.3 Observe  the double reticle at the bottom of the diaphanometer from the 
nozzle. If it is impossible to observe the reticle clearly, drain the extract 
out of the diaphanometer from the bottom until the double reticle can just 
be seen clearly.   
6.4.4 Observe the scale va lue of the bottom of the liquid service in the cylinder , 
on the cylinder wall . This scale value is just the transparency.   
6.5 The washing method shall observe the standard specified under GB/T 8629, and 
adopt the simulated hand washing without adding deterge nts or conducting the 
drying procedure.  
7 Inspection rules  
If the test results for the samples meet all the requirements as set forth in Table 1, the 
samples shall be deemed to conform to the limits of aqueous extracts, or otherwise fail to 
conform to the l imits.  
8 Marking  
If a product needs washing before use, it shall be marked with “Use after Washing” in an 
obvious position on the product.