QC/T 17-1992 PDF English
US$210.00 · In stock · Download in 9 secondsQC/T 17-1992: General Rules of Atmospheric Exposure Test for Auto Parts Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| QC/T 17-1992 | English | 210 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
General Rules of Atmospheric Exposure Test for Auto Parts
| |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: QC/T 17-1992
QC/T 17-1992: General Rules of Atmospheric Exposure Test for Auto Parts---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/QCT17-1992
QC
AUTOMOTIVE INDUSTRY STANDARD
General rules for
automotive part weathering test
Issued on. MAY 21, 1992
Implemented on. JUNE 1, 1993
Issued by. China Automotive Industry Corporation
Table of Contents
1 Subject content and application scope... 3
2 Normative references... 3
3 Terms... 4
4 Test type and code name... 5
5 Service conditions and code... 6
6 Importance and classification of parts... 6
7 Specimens... 7
8 Test methods... 9
9 Evaluation methods... 19
10 Evaluation of test result... 21
11 Recording items... 22
Additional explanation... 31
General rules for automotive part weathering test
1 Subject content and application scope
This Standard specifies contents, methods, conditions and devices of automotive
parts’ weathering test.
This Standard applies to automobile parts and automotive metal parts that are made
up of plastics, rubber, artificial leather fiber.
This Standard does not apply to parts such as electric wire, tire, anti-vibration rubber,
air spring.
2 Normative references
GB 250 Gray scale for assessing change in colour
GB 2410 Transparent plastics - Transmissivity and haze test
GB 2918 Standard atmospheres for conditioning and testing of plastic specimens
GB 2941 Rubber - Standard temperatures, humidity and times for the conditioning
environmental and testing of test pieces
GB 3511 Rubber vulcanized - The test method of resistance to natural weathering
GB 3681 Methods of exposure to natural weathering of coating
GB 9754 Paints and varnishes - Determination of specular gloss of non-metallic
paint films at 20°, 60°and 85°
GB 9277.2 Evaluation of degradation of paint coatings - Part 2.Designation of
degree of blistering
GB 9277.3 Evaluation of degradation of paint coatings - Part 3.Designation of
degree of rusting
3 Terms
3.1 Weather resistance. refers to anti-weathering ability of specimen under natural
climate conditions such as sunlight, ozone, rain and snow, humidity and temperature.
3.2 Light resistance. refers to that surface of specimen resists degradation.
3.3 Degradation. means the phenomenon that when specimen is exposed in natural
or artificial environment, its performance becomes worse as time goes by.
3.4 Exposure side. refers to the surface that specimen directly touches with sunlight,
ozone, rain and snow.
3.5 Effective side. refers to the surface that has working function.
a. Directly visible surface under service conditions.
b. Surface of parts that is directly influenced by changes of surface condition.
3.6 Standard specimen. refers to the specimen, used for regular observation and
comparison, that is stored in specified conditions.
3.7 Color-fading. refers to changes of specimen test that is caused by changes of color,
brightness and other degradations.
3.8 Contact-pollution. refers to changes caused by different materials’ interaction.
4 Test type and code name
Test types shall be divided into outdoor and indoor test; it is divided into seven types
according to test conditions and types of testing machine (as shown in Table 1).
5 Service conditions and code
Consider comprehensively according to environment and using sites of parts.
6 Importance and classification of parts
Classification shall be conducted according to degree of importance of part design, as
shown in Table 3
7 Specimens
7.1 Specimen shall be parts. If there are requirements in test, specimen used for
coating, as specified in Table 4, shall be adopted.
7.2 When performance of test material changes, specimen shall be chosen according to
different performances tested. P
8 Test methods
8.1 Outdoor test
8.1.1 Environment and exposure test site of outdoor test shall be in accordance with
relevant provisions of GB 3681, GB 3511 and GB 1767.
8.1.2 Exposure time
8.1.3 Observation and test of specimen
Item of observation and test of specimen is shown in Table 7, time of it is shown in Table
8.However, after suppliers and buyers negotiate, partial items of observation and test can
be omitted.
8.1.4 Management of specimen. dirt of specimen shall be cleaned every month (but
attention shall be paid to exposed surface) and cleaning shall be done (fiber and rubber
products shall not washed by water) in WON and WOL. Lining of exposed surface of optical
products (such as car light glass) shall be covered to avoid attaching dirt (other than
specimen a)
8.2 Outdoor weather resistance test
8.2.1 Exposure device shall be in accordance with provisions of article 4 in GB 3511 or
article 4 in GB 3681 or article 3 in GB 1767.
8.3 Outdoor light resistance test
8.3.1 Exposure devices shall be in accordance with provisions of article 8.2.1 and have
good ventilation. The specimen above shall be covered by glass pane to avoid being
influenced by wind and rain. The distance from specimen surface to glass pane (polished
glass with thickness of 3mm) shall not be less than 5cm and glass pane shall be cleaned.
8.3.2 Exposure method shall be in accordance with provisions of article 8.2.2.But when
specimen a is adopted, it shall be close to frame.
8.4 Outdoor shielding test
8.5 Indoor intensified test
8.5.1 Temperature of test room shall be 20±5°C.
8.5.2 Specimen. specimen shall be chosen according to purpose of test.
8.5.3 Test device
9 Evaluation methods
9.1 Evaluation of specimen shall be conducted after and before test, within specified time.
Inspection of specimen after and before shall avoid the top and edge part of specimen.
9.2 Specimen shall be cleaned according to test purpose; if necessary, conduct in
accordance with provisions in GB 2918 and GB 2941.WON, WOL and WAN test shall be
conducted after stain on effective surface is cleaned.
9.5 Shape and size evaluation of specimen after test
a. Changes of shape shall be visually inspected;
b. Changes of size shall be measured according to relevant measurement equipment.
Change rate shall be calculated according to the following formula.
9.6 Color-fading evaluation. Compare standard piece with specimen; inspect changes of
the latter; its color-fading degree shall be decided according to provisions of GB 250.
9.9 Blistering evaluation shall be in accordance with provisions of GB 9277.2.
9.10 Rustiness evaluation shall be in accordance with provisions of GB 9277.3.
9.11 Flaking evaluation shall be in accordance with provisions of GB 9277.5.
9.12 Rubber cracking evaluation. Cracking after rubber test shall be inspected according
to method described in b of article 9.3.Rubber cracking shall be evaluated according to
level evaluation given in Table 2 of Appendix B Rubber Weathering Test Appearance
Inspection Method in GB 3511.Evaluation of coating cracking shall be in accordance with
provisions of GB 9277.4.
QC/T 17-92
QC
AUTOMOTIVE INDUSTRY STANDARD
General rules for
automotive part weathering test
Issued on. MAY 21, 1992
Implemented on. JUNE 1, 1993
Issued by. China Automotive Industry Corporation
Table of Contents
1 Subject content and application scope... 3
2 Normative references... 3
3 Terms... 4
4 Test type and code name... 5
5 Service conditions and code... 6
6 Importance and classification of parts... 6
7 Specimens... 7
8 Test methods... 9
9 Evaluation methods... 19
10 Evaluation of test result... 21
11 Recording items... 22
Additional explanation... 31
General rules for automotive part weathering test
1 Subject content and application scope
This Standard specifies contents, methods, conditions and devices of automotive
parts’ weathering test.
This Standard applies to automobile parts and automotive metal parts that are made
up of plastics, rubber, artificial leather fiber.
This Standard does not apply to parts such as electric wire, tire, anti-vibration rubber,
air spring.
2 Normative references
GB 250 Gray scale for assessing change in colour
GB 2410 Transparent plastics - Transmissivity and haze test
GB 2918 Standard atmospheres for conditioning and testing of plastic specimens
GB 2941 Rubber - Standard temperatures, humidity and times for the conditioning
environmental and testing of test pieces
GB 3511 Rubber vulcanized - The test method of resistance to natural weathering
GB 3681 Methods of exposure to natural weathering of coating
GB 9754 Paints and varnishes - Determination of specular gloss of non-metallic
paint films at 20°, 60°and 85°
GB 9277.2 Evaluation of degradation of paint coatings - Part 2.Designation of
degree of blistering
GB 9277.3 Evaluation of degradation of paint coatings - Part 3.Designation of
degree of rusting
3 Terms
3.1 Weather resistance. refers to anti-weathering ability of specimen under natural
climate conditions such as sunlight, ozone, rain and snow, humidity and temperature.
3.2 Light resistance. refers to that surface of specimen resists degradation.
3.3 Degradation. means the phenomenon that when specimen is exposed in natural
or artificial environment, its performance becomes worse as time goes by.
3.4 Exposure side. refers to the surface that specimen directly touches with sunlight,
ozone, rain and snow.
3.5 Effective side. refers to the surface that has working function.
a. Directly visible surface under service conditions.
b. Surface of parts that is directly influenced by changes of surface condition.
3.6 Standard specimen. refers to the specimen, used for regular observation and
comparison, that is stored in specified conditions.
3.7 Color-fading. refers to changes of specimen test that is caused by changes of color,
brightness and other degradations.
3.8 Contact-pollution. refers to changes caused by different materials’ interaction.
4 Test type and code name
Test types shall be divided into outdoor and indoor test; it is divided into seven types
according to test conditions and types of testing machine (as shown in Table 1).
5 Service conditions and code
Consider comprehensively according to environment and using sites of parts.
6 Importance and classification of parts
Classification shall be conducted according to degree of importance of part design, as
shown in Table 3
7 Specimens
7.1 Specimen shall be parts. If there are requirements in test, specimen used for
coating, as specified in Table 4, shall be adopted.
7.2 When performance of test material changes, specimen shall be chosen according to
different performances tested. P
8 Test methods
8.1 Outdoor test
8.1.1 Environment and exposure test site of outdoor test shall be in accordance with
relevant provisions of GB 3681, GB 3511 and GB 1767.
8.1.2 Exposure time
8.1.3 Observation and test of specimen
Item of observation and test of specimen is shown in Table 7, time of it is shown in Table
8.However, after suppliers and buyers negotiate, partial items of observation and test can
be omitted.
8.1.4 Management of specimen. dirt of specimen shall be cleaned every month (but
attention shall be paid to exposed surface) and cleaning shall be done (fiber and rubber
products shall not washed by water) in WON and WOL. Lining of exposed surface of optical
products (such as car light glass) shall be covered to avoid attaching dirt (other than
specimen a)
8.2 Outdoor weather resistance test
8.2.1 Exposure device shall be in accordance with provisions of article 4 in GB 3511 or
article 4 in GB 3681 or article 3 in GB 1767.
8.3 Outdoor light resistance test
8.3.1 Exposure devices shall be in accordance with provisions of article 8.2.1 and have
good ventilation. The specimen above shall be covered by glass pane to avoid being
influenced by wind and rain. The distance from specimen surface to glass pane (polished
glass with thickness of 3mm) shall not be less than 5cm and glass pane shall be cleaned.
8.3.2 Exposure method shall be in accordance with provisions of article 8.2.2.But when
specimen a is adopted, it shall be close to frame.
8.4 Outdoor shielding test
8.5 Indoor intensified test
8.5.1 Temperature of test room shall be 20±5°C.
8.5.2 Specimen. specimen shall be chosen according to purpose of test.
8.5.3 Test device
9 Evaluation methods
9.1 Evaluation of specimen shall be conducted after and before test, within specified time.
Inspection of specimen after and before shall avoid the top and edge part of specimen.
9.2 Specimen shall be cleaned according to test purpose; if necessary, conduct in
accordance with provisions in GB 2918 and GB 2941.WON, WOL and WAN test shall be
conducted after stain on effective surface is cleaned.
9.5 Shape and size evaluation of specimen after test
a. Changes of shape shall be visually inspected;
b. Changes of size shall be measured according to relevant measurement equipment.
Change rate shall be calculated according to the following formula.
9.6 Color-fading evaluation. Compare standard piece with specimen; inspect changes of
the latter; its color-fading degree shall be decided according to provisions of GB 250.
9.9 Blistering evaluation shall be in accordance with provisions of GB 9277.2.
9.10 Rustiness evaluation shall be in accordance with provisions of GB 9277.3.
9.11 Flaking evaluation shall be in accordance with provisions of GB 9277.5.
9.12 Rubber cracking evaluation. Cracking after rubber test shall be inspected according
to method described in b of article 9.3.Rubber cracking shall be evaluated according to
level evaluation given in Table 2 of Appendix B Rubber Weathering Test Appearance
Inspection Method in GB 3511.Evaluation of coating cracking shall be in accordance with
provisions of GB 9277.4.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of QC/T 17-1992 be delivered?Answer: The full copy PDF of English version of QC/T 17-1992 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 17-1992_English with my colleagues?Answer: Yes. The purchased PDF of QC/T 17-1992_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- QC/T 17-1992 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of QC/T 17-1992?A step-by-step guide to download PDF of QC/T 17-1992_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "QC/T 17-1992".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|