QC/T 15-1992 PDF EnglishUS$150.00 · In stock · Download in 9 seconds
QC/T 15-1992: General test method for automobile plastic products Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
QC/T 15-1992: General test method for automobile plastic products---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT15-1992QC AUTOMOTIVE INDUSTRY STANDARD T 05 General test methods for automotive plastic products Issued on. MAY 21, 1992 Implemented on. JUNE 1, 1993 Issued by. China Automotive Industry Corporation Table of Contents1 Subject contents and application scope... 3 2 Normative references... 3 3 Test items... 3 4 General test conditions... 4 5 Test methods... 5 6 Evaluation items... 24 7 Test report... 26 Additional explanations... 26 General test methods for automotive plastic products1 Subject contents and application scopeThis Standard specifies the general test methods for automobile plastic molding products (hereinafter referred as products). This Standard is applicable to automobile plastic products but not to foaming products, seats, electroplated products and coating products.2 Normative referencesGB 209 Sodium hydroxide for industrial use GB 252 General diesel fuels GB 435 Gasoline engine oil GB 484 Vehicle used gasoline GB 534 Industrial sulfuric acid GB 2918 Plastics – Standard atmospheres for conditioning and testing GB 5671 Lithium base grease for general purpose automobile JB 3979 Test methods for automobile steering-wheel QC/T 17 General rules for automative part weathering test SY 4005 No.4604 synthetic brake oil3 Test itemsTest items include the 11 items as follows.4 General test conditions4.1 Standard environment conditions The standard environment conditions are prescribed in GB 2918. 4.2 Specimen The product which has been assembled and available for use can be used in a test as the specimen. 4.3 Pre-treatment of specimen The specimen, randomly selected from the products which have been placed for at least 24h since manufacturing, cannot undergo a test until being placed in the environmental conditions as stipulated in 4.1 for no less than 4h or in other conditions agreed by supplier and buyer if required.5 Test methods5.1 Temperature resistance test Temperature resistance test is to examine the actual properties of products in high temperature, low temperature, and high-low temperature alternating conditions. 5.1.2 Classification of applicable conditions The following 10 applicable conditions which are classified according to the place of the product mounted in a vehicle and the corresponding temperature conditions are described in Table 3. 5.1.4 Test methods One of test methods is selected by supplier and buyer upon agreement based on the heat transfer conditions that the specimen undergoes. 5.1.4.1 Regular heat resistance test 5.1.4.2 Extreme heat resistance test If the specimen is found no abnormality at the temperature as stipulated in Table 4 or the surface temperature of which is that as stipulated in Table 5, continue to increase the temperature of constant temperature chamber where the specimen is placed, 10°C or 5°C for each time, 5.1.4.3 Cold resistant test Regulate the temperature of low temperature chamber reaching that as stipulated in Table 4, and then put the specimen in the low temperature chamber for at least 4h. Take the specimen out from the constant low temperature chamber, and examine it according to the test items as stipulated in article 6. 5.2 Weathering test Weathering test shall be carried out in accordance with QC/T 17. 5.3 Water resisting test Water resisting test is to examine the variation of product in water absorption when directly contacting water during use. 5.5 Chemical medium resistance test Chemical medium resistance test is to examine the variation of product if submerged or contacting the commonly used fuel, oil, lubricating oil, drugs or solvents (or chemical media referred as follows). 5.5.3.3 Dropping test 5.6.4.2 Vibration endurance test Vibration endurance test shall be carried out according to 6 grades, as stipulated in Table 13, based on the category of vehicle and the actual place where the product is installed; that is, grades 2, 3, 4, 7, 9 and 11.The applicable classification shall be in accordance with Table 13 and test time in accordance with Table 14. 5.7 Tests of Impact resistance 5.7.1 Classification of tests The tests are classified into following three kinds based on impact methods. 5.7.3 Tests methods 5.7.3.1 Falling-weight impact tests Tests devices. including and supporting mechanism of heavy bobs and specimens, control mechanism for controlling heavy bobs’ free-fall, heavy bobs and staff-gauges. The heavy bob’s head is spherical; its radius is 25 mm; 5.8 Abrasion resistance tests 5.8.1 Classification tests According to the surface shape and the property of abrasion of products, the tests may be classified into 3 forms. 5.10 Rigidity test Rigidity tests are used to evaluate rigidity and assembly rigidity of products. 5.10.1 Test devices Teat devices are as shown in Figure 5, including micrometer and push-pull pressure gauge, which can obtain deflection curve line of load (as shown in Figure 6). The diameter of fixation clamps and specimen width shall be in accordance with provisions in Table 20.6 Evaluation itemsCheck shall be conducted in accordance with evaluation items and test items specified in Table 22 according to separate needs after test is conducted in accordance methods specified in article 5.7 Test reportTest report shall include following items. 7.1 Report contents 7.2 Sub-items’ test report contents ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of QC/T 15-1992 be delivered?Answer: The full copy PDF of English version of QC/T 15-1992 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of QC/T 15-1992_English with my colleagues?Answer: Yes. 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