GB/T 33734-2017Woven bedding for infants (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This Standard specifies the terms and definitions, requirements, test methods, inspection rules, and symbol, package, transport and storage of woven bedding for infants.

This Standard is applicable to the bedding for infants made of textile woven fabrics as the main material.

2 Normative references

The following documents are essential to the application of this document. For dated references, only the editions with the dates indicated are applicable to this document. For undated references, only the latest editions (including all the amendments) are applicable to this document.

GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing change in colour

GB/T 251 Textiles - Tests for colour fastness - Grey scale for assessing staining

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 - Testing method for colour fastness to perspiration

GB/T 3923.1 Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method

GB/T 4802.2 Textiles - Determination of fabric propensity to surface fuzzing and to pilling - Part 2: Modified Martindale method

GB/T 4841.3 Colour cards of standard depths for dyeing with dyestuffs 2/1, 1/3, 1/6, 1/12, 1/25

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 6504-2008 Testing method for oil content of man-made fibres

GB/T 6977 Test method for ethanol extractives, ash, vegetable matter, total ali-insoluble impurities in scoured wool

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 color fastness - Color fastness to artificial light: Xenon arc fading lamp test

GB/T 8628 Textiles - Preparation, marking and measuring of fabric specimens and garments in tests for determination of dimensional change

GB/T 8629 Textiles - Domestic washing and drying procedures for textile testing

GB/T 8630 Textiles - Determination of dimensional change in washing and drying

GB/T 14644 Textiles - Burning behavior - 45° test determination of flame spread rate

GB/T 14801 Test method for skewness and bow in woven and knitted fabrics

GB/T 17592 Textiles - Determination of the banned azo colourants

GB/T 17685 Down and feather

GB 18401 National general safety technical code for textile products

GB/T 18886 Textiles - Tests for fastness - Colour fastness to saliva

GB/T 20388 Textiles - Determination of the phthalate content

GB/T 24121 Textile products - Determination of the remains of broken sewing needle

5 Test methods

5.7 The detection of fiber content shall be carried out according to FZ/T 01057 (all parts) and GB/T 2910 (all parts). The filler sampling shall be carried out according to the provisions of Annex B.

5.8 The detection of fabric breaking strength shall be carried out according to GB/T 3923.1.

5.9 The detection of fabric propensity to pilling shall be carried out according to GB/T 4802.2. The sample fabric shall be used as the abrasive. The number of rubbings is 2,000. The rating may be carried out according to GSB 16-3223.

5.10 The detection for the dimensional change rate in washing of fabrics shall be carried out according to GB/T 8628, GB/T 8629 and GB/T 8630. SELECT 5A procedures (for the fabrics with a fur or silk content of greater than or equal to 50%, 7A procedures shall be selected) for washing and the drying method A in GB/T 8629-2001.

5.11 The detection for the colour fastness to washing with soap or soap and soda shall be carried out according to GB/T 3921-2008. The test condition A (1) shall be adopted.

5.12 The detection for the colour fastness to light shall be carried out according to the method 3 in GB/T 8427-2008.

5.13 The detection for the colour fastness to water shall be carried out according to GB/T 5713.

5.14 The detection for the colour fastness to perspiration shall be carried out according to GB/T 3922.

5.15 The detection for the colour fastness to rubbing shall be carried out according to GB/T 3920.

5.16 The detection for the colour fastness to saliva shall be carried out according to GB/T 18886.

5.17 The detection of the formaldehyde content shall be carried out according to GB/T 2912.1.

5.18 The detection of the pH value shall be carried out according to GB/T 7573.

5.19 The detection of peculiar smell shall be carried out according to GB 18401.

5.20 The detection of the decomposable carcinogenic aromatic amine dye shall be carried out according to GB/T 17592.

5.21 The detection of the total lead and total cadmium in heavy metals shall be carried out according to GB/T 30157.

5.22 The detection of the phthalate content shall be carried out according to GB/T 20388.

5.23 The detection of the burning behavior shall be carried out according to GB/T 14644.

5.24 The detection of the sharp objects shall be carried out according to GB/T 24121. The sensitivity shall be 1.0mm.

5.25 The detection for the tensile strength of attached components shall be carried out according to GB 31701.

5.26 The detection for the sharpness of the sharp tips and edges of attached components shall be carried out according to GB/T 31702.

5.27 Detection for the length of cords and drawstrings as well as the loop circumference. SMOOTH out the cords and drawstrings as well as the loop. USE a steel ruler to measure the length or circumference, under the action of a force of 22N. Accurate to 1mm.

5.28 Determination for the fixed positions of cribs. USE a steel tape to measure along the circumference. Accurate to 1mm.

5.29 In the case that the linings or fillers are from the same batch in the auxiliary products, the intrinsic quality items can be tested on one piece only.

5.30 When different linings or fillers are applied to different positions of the same product, the intrinsic quality items shall be tested on each position, respectively.

6 Inspection rules

6.1 Samples shall be randomly selected from qualified batches of products tested by the factory. The sampling schemes for intrinsic quality are shown in Table 5. The sampling schemes for appearance quality and process quality are shown in Table 6.

6.2 When the sample size n is greater than the lot size N, full inspection shall be carried out. The acceptance number Ac is 0. […]