GB/T 8948-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8948-2025	RFQ	ASK	3 days	Polyvinyl chloride leatherette
GB/T 8948-2008	190	Add to Cart	Auto, < 3 mins	Polyvinyl chloride artificial leather	Valid
GB/T 8948-1994	399	Add to Cart	3 days	Polyvinyl chloride artificial leather	Obsolete
GB 8948-1988	RFQ	ASK	3 days	Polyvinylchloride coated fabrics	Obsolete

Basic data

Standard ID: GB/T 8948-2025 (GB/T8948-2025)
Description (Translated English): Polyvinyl chloride leatherette
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y47
Classification of International Standard: 59.080.40
Date of Issue: 2025-10-31
Date of Implementation: 2026-05-01
Older Standard (superseded by this standard): GB/T 8948-2008

GB/T 8948-2008: Polyvinyl chloride artificial leather

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Polyvinyl chloride artificial leather ICS 59.080.40 Y47 National Standards of People's Republic of China GB/T 8948-2008 Replacing GB/T 8948-1994 PVC artificial leather Published on.2008-08-19 2009-05-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Released by the Standardization Administration of China PVC artificial leather

1 Scope

This standard specifies the product classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of polyvinyl chloride artificial leather. This standard applies to the use of plain weave or twill fabric as the base, adding plasticizers and other additives to the polyvinyl chloride resin after calendering or coating Polyvinyl chloride artificial leather made by covering and other methods. This standard does not apply to knitted cloth-based polyvinyl chloride artificial leather.

2 Normative references

The clauses in the following documents become clauses of this standard through reference in this standard. For dated references, all subsequent Amendments (excluding errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is the latest version of these files available. For undated references, the latest edition applies to this standard. GB/T 250-2008 Textile color fastness test gray sample card for evaluating discoloration GB/T 1040.3-2006 Determination of Tensile Properties of Plastics Part 3.Test Conditions for Films and Sheets GB/T 1539-2007 Determination of bursting strength of cardboard GB/T 2828.1-2003 Counting Sampling Inspection Procedures Part 1.Lot-by-Lot Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL) GB/T 2918-1998 Standard Environment for Conditioning and Testing of Plastic Samples GB/T 3920-2008 Textiles Color Fastness Test Color Fastness to Rubbing GB 7565-1987 Textile color fastness test cotton and viscose fiber standard backing fabric specifications GB/T 8808-1988 Soft composite plastic material peeling test method HG/T 2-162-1965 Test method for low temperature elongation of plastic films QB/T 2714-2005 Determination of fold fastness to leather physical and mechanical tests QB/T 2727-2005 Color fastness test of leather Color fastness to light. Xenon arc

3 Classification

3.1 See Table 1 for the classification of products according to the cloth-based textile method. 3.2 According to whether the coating is foamed, it is divided into foamed leather and non-foamed leather.

4 Requirements

4.1 Specifications 4.1.1 The width and limit deviation shall comply with the provisions in Table 2. GB/T 8948-2008 5.7 Tensile load and elongation at break According to the provisions of GB/T 1040.3-2006.Type 2 specimens were used, the distance between the marking lines of the specimens was 100 mm, and the tensile speed was 200mm/min. 5.8 Tear load Cut 75mm parallel to the length at the centerline of the width of the sample, and clamp the cut ends in opposite directions to meet the requirements of 5.7 On the fixed tensile testing machine fixture, test at a speed of.200mm/min, record the maximum tearing load of the sample, and test results in the warp and weft directions. The arithmetic mean of 3 samples is expressed, accurate to 0.1N. 5.9 Peel load According to the provisions of GB/T 8088-1988. 5.10 Surface color fastness According to the provisions of GB/T 3920-2008, the standard lining fabric for friction shall comply with the provisions of GB/T 7565-1987. The test results shall be evaluated according to the provisions of GB/T 250-2008. 5.11 Cold resistance According to HG/T 2-162-1965 regulations, the test temperature is (-10 ± 1) ℃. Take the worst test data as the test result. 5.12 Aging 5.12.1 Instruments Heat aging test chamber. with rotating sample holder and blower device. 5.12.2 Test procedure Hang the sample in a heat aging test box with a temperature of (100 ± 2) °C, and take it out after the sample holder is rotated and kept for 24 hours under the condition of blowing air. out, cooled at room temperature for more than 0.5 h, and then cut a sample with a length of 60 mm and a width of 20 mm from each sample. (-5 ± 1) ℃ cryogenic liquid for 5min, according to the provisions of HG/T 2-162-1965 test. Take the worst test data as the test result. 5.13 Bursting strength 5.13.1 Test equipment The Müllen burst strength testing machine shall comply with the provisions of GB/T 1539-2007. 5.13.2 Test procedure With the coating side of the sample facing down, clamp it with a ring clamp, and slowly pressurize until the sample is burst. Bursting strength when the sample is burst The pressure is expressed, and the test result is the arithmetic mean of three samples, accurate to 0.1MPa. 5.14 Folding fastness According to the provisions of QB/T 2714-2005. 5.15 Low temperature folding fastness 5.15.1 Test equipment The low-temperature folding fastness testing machine shall meet the requirements of QB/T 2714-2005. 5.15.2 Test procedure Take the center line of the sample length as the criterion, fold the coating inwards, put one end of the folded sample into the upper clamp of the instrument, and connect the top end with the screw. touch, the crease line is flush with the bottom edge of the clip. Then fold the other end of the sample inward and insert it into the lower clip. Then adjust the temperature inside the box to (-10±2)℃, when the counter reaches 30,000 times, stop the test. Observe the change of the folded part and take the worst test data as the test. test results. 5.16 Resistance to rubbing 5.16.1 Test equipment Scott-type rubbing tester. GB/T 8948-2008 5.16.2 Test procedure The two sample cloth surfaces in the same direction are overlapped with each other, and then loaded into the rubbing test machine fixture with a fixture interval of 30mm. shrink gradually The distance between the small clamps is to make the cloth surfaces of the two samples touch lightly and then apply a load, and the distance is reduced until the load is 9.8N. at a frequency of 120 times/min, with a stroke of 50mm, reciprocate 1,000 times to observe whether the surface of the artificial leather has cracks, damage or separation of the cloth base and the coating etc. phenomenon. If there is one sample with the above phenomenon, the rub resistance of the sample is judged to be unqualified. 5.17 Lightfastness According to the provisions of QB/T 2727-2005.The exposure method adopts method 3, and the most serious discoloration degree among the three samples is taken as the The final discoloration grade is recorded. 5.18 Vulcanizability Immerse the sample in a saturated aqueous solution of hydrogen sulfide flowing with hydrogen sulfide gas for 5min, then take out the sample and rinse it with water immediately. Clean, according to the provisions of GB/T 250-2008 to determine the discoloration grade of the sample. 5.19 Adhesion 5.19.1 Instruments Constant temperature oven with blower. 5.19.2 Test procedure The polyvinyl chloride coating surfaces of the two samples are attached to each other, and two pieces of smooth glass with a length and width of about 60mm are used to make them meet the surface of the sample. Align the widths, then sandwich the specimen between 2 pieces of glass. Then use a weight with a length of 60mm and a width of 60mm on the bottom surface and a load of 30N to press it on the glass plate. placed together in a constant temperature oven at (70 ± 2) °C, taken out after 24 h, removed heavy objects, and cooled at room temperature for 1 h. Then slowly put 2 pieces The sample was peeled off, and the film surface was observed for any abnormality such as damage.

6 Inspection rules

6.1 Inspection classification and items 6.1.1 Factory inspection The factory inspection items are the items in 4.1, 4.2, and 4.3.1 in the requirements. 6.1.2 Type inspection Type inspection should be carried out in one of the following situations. a) When the type identification of new products or the transfer of old products to production; b) After the formal production, if there is a big change in the structure, material and process, which may affect the performance of the product; c) When the normal production is more than three months; d) When the production is stopped for more than three months for some reason, when the production is resumed; e) When there is a big difference between the factory inspection results and the last type inspection; f) When the national quality supervision and inspection agency puts forward the requirements for type inspection. The items of type inspection are all the items specified in this standard. 6.2 Factory inspection 6.2.1 Batching and sampling 6.2.1.1 Group batch Artificial leather shall be checked and accepted in batches. Products of the same cloth base, same color, same pattern and same specification are one batch, and the quantity of each batch shall not exceed 15000m. 6.2.1.2 Sampling The inspection of specifications and appearance adopts the general inspection level II specified in GB/T 2828.1-2003, and the receiving quality limit AQL is 6.5 For the sub-sampling plan, see Table 9 for batch size, sample and judgment array. GB/T 8948-2008 Physical and mechanical properties are randomly selected from each delivery batch for inspection. 6.2.2 Judgment rules 6.2.2.1 Determination of qualified items The determination of the size and appearance of the sample unit shall be carried out in accordance with the provisions of 4.1 and 4.2 respectively. If the test results of the sample unit meet the requirements of Table 9 If it is determined, it will be judged that the specifications and appearance are qualified. If there are unqualified items in the physical and mechanical properties inspection results, double sampling shall be carried out in the original batch, and the unqualified items shall be re-inspected. If all are qualified, the physical and mechanical properties are judged to be qualified. 6.2.2.2 Determination of qualified batches If the inspection results are all qualified, the batch of products will be judged as qualified. If there are unqualified items, the batch of products will be judged as unqualified. 6.3 Type inspection 6.3.1 Sampling One roll is randomly selected from the products that have passed the factory inspection for the inspection of appearance and specifications, and 1m is taken for the inspection of physical and mechanical properties. 6.3.2 Judgment rules Specifications and appearance shall be carried out in accordance with the provisions of 4.1 and 4.2.If it is not qualified, 3 volumes should be re-selected from the original product for re-inspection, and the re-inspection results If all are qualified, it is judged that the specifications and appearance are qualified. If any of the physical and mechanical properties test results are unqualified, the original product shall be re-sampled twice, and the unqualified items shall be re-inspected. If the re-inspection results are all qualified, the physical and mechanical properties are judged to be qualified. If the inspection results are all qualified, the type inspection is judged to be qualified. 7 Marking, packaging, transportation and storage 7.1 Signs Each volume of product should be accompanied by a certificate of conformity and have the following marks. a) the name and address of the manufacturer; GB/T 8948-2008 b) product name; c) product category; d) product specifications (thickness, width, length, color, pattern, etc.); e) production date and production batch number; f) trademarks; g) The product standard number implemented; h) Inspector code. 7.2 Packaging The product should be coated inward, rolled into a neat round roll with a roll core, and packaged with plastic film or paper. It can also be negotiated by both parties. 7.3 Transportation When the product is transported, it should prevent collision or contact with sharp objects. It should be lightly loaded and unloaded, and should not be under heavy pressure. Do not expose to the sun and rain, and keep the packaging intact. 7.4 Storage The products should be stored in a clean, dry, ventilated warehouse with suitable temperature, avoid sunlight exposure, not less than 1m from the heat source, and stack reasonably. The shelf life of the product is 18 months from the date of production. GB/T 8948-2008 ......

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