GB/T 41003.2-2021General technical specification for plastic foam mats—Part 2: Indoor polyvinyl chloride foam mats (English PDF)

6.1 Specimen extraction

From each batch of products, cut 0.5 m longitudinally as samples for physical and chemical performance testing. The quantity should meet the requirements for all physical and chemical performance tests in Chapter 5. Prepare the test specimens by removing 50 mm of width from each end of the sample.

6.2 Specimen condition adjustment and test environment

Unless otherwise specified, the specimens shall be conditioned in accordance with GB/T 2918 under a standard environment of (23±2)°C and (50±10)% relative humidity for a period of not less than 4 h. The test shall be conducted under this environment.

6.3 Tensile load and elongation at break

Conduct the test in accordance with GB/T 3923.1.

6.4 Abrasion resistance

Conduct the test in accordance with 5.10 of QB/T 5115-2017.

6.5 Slip resistance

Conduct the test in accordance with 5.11 of QB/T 5115-2017.

6.6 Color fastness to rubbing

Test according to GB/T 3920, rubbing 10 times back and forth. The worst result among the three specimens is deemed the test result.

6.7 Migratable elements

Test according to GB/T 26193. Sample preparation shall be in accordance with 8.2 of GB 6675.4-2014.

6.8 Decomposable aromatic amine dyes

Test according to GB/T 17592.

6.9 Total polycyclic aromatic hydrocarbons (PAHs)

Test according to GB/T 28189.

6.10 Volatile organic compounds

Test according to QB/T 5354.

6.11 Formamide content

Test according to GB/T 34842.

6.12 Vinyl chloride monomer

Test according to 5.3 of GB 18586-2001.

7.1 Exit-factory inspection

The items are items numbered 1, 2, and 10 in Table 2.

7.2 Type inspection

The items are all those specified in Table 2.

Type inspection should be conducted in any of the following circumstances.

a) During the trial design inspection period for new products or when transferring old products to a new factory for production;

b) After mass production, if there are significant changes in materials or processes that may affect product quality and performance;

c) During formal production, periodic inspection (every six months) should be conducted regularly or after a certain amount of production has been accumulated;

d) When resuming production after a product suspension of more than 6 months;

e) When the results of the current exit-factory inspection differ significantly from those of the previous type inspection.

7.3 Sampling

Each batch of products must be of the same category, color, material, and specifications, and the quantity must not exceed 10000 pieces. Samples must be randomly selected from each batch. The total sample volume must be no less than 0.25 m². The dimensions of each individual sample must be no less than 100 mm × 100 mm. […]