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GB/T 1865-2009 English PDF (GBT1865-2009)

GB/T 1865-2009 English PDF (GBT1865-2009)

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GB/T 1865-2009: Paints and varnishes -- Artificial weathering and exposure to artificial radiation -- Exposure to filtered xenon-arc radiation
GB/T 1865-2009
Paints and varnishes.Artificial weathering and exposure to artificial radiation.Exposure to filtered xenon-arc radiation
ICS 87.0040
G50
National Standards of People's Republic of China
GB/T 1865-2009/ISO 11341.2004
Replace GB/T 1865-1997
Paints and varnishes
Artificial weathering and artificial radiation exposure
Filtered xenon arc radiation
(ISO 11341.2004, IDT)
2009-06-02 released
2010-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Issued by China National Standardization Management Committee
Contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Principle 2
5 Supplementary information required 2
6 Instruments and equipment 2
7 Sampling 5
8 Preparation of test plates 5
9 Step 6
10 Evaluation of aging results 7
11 Test Report 7
Appendix A (Normative Appendix) Information to be added 9
Appendix B (informative appendix) Sunlight spectral irradiance and window glass light transmittance 10
Reference 12
GB/T 1865-2009/ISO 11341.2004
Foreword
This standard is equivalent to adopting the international standard ISO 11341.2004 "paints and varnishes --- artificial weathering and artificial radiation exposure (filtered
Xenon arc radiation)" (English version).
This standard is equivalent to the translation of ISO 11341.2004.
For ease of use, the editorial changes of this standard are as follows.
---Replace "this international standard" with "this standard";
--- Delete the preface of international standards;
---For other international standards cited in ISO 11341.2004, some of them are equivalently adopted as our national standards, and our national standards replace the corresponding ones.
The international standards of my country have not been directly adopted as the standards of our country.
---Because most of the evaluation of domestic paint aging results is based on GB/T 1766, so in Chapter 10, it is added
Note 2.
This standard replaces GB/T 1865-1997 "Artificial weathering of artificial paint and varnish and artificial radiation exposure (filtered xenon arc radiation)".
The main technical differences between this standard and the previous version of GB/T 1865-1997 are.
--- The previous version is equivalent to ISO 11341..1994, this revision is equivalent to adopt ISO 11341..2004
---The previous version only specified that the average irradiance of the sample plane between 290nm and 800nm is 550W/m2; the Chinese side of this standard
Law 1 stipulates that the average irradiance between the wavelengths of 300nm and 400nm is 60W/m2, and the irradiance at 340nm is
0.51W/m2; Method 2 stipulates that the average irradiance between 300nm and 400nm wavelength is 50W/m2,420nm
The irradiance is 1.1W/m2;
--- This standard adds a high irradiance test. Method 1 The average irradiance between 300nm and 400nm wavelength can be
60W/m2~180 W/m2, the irradiance at 340nm can be 0.51W/m2~1.5W/m2; Method 2 is
The average irradiance between the wavelengths from 300nm to 400nm can be 50W/m2~162W/m2, the average irradiance at 420nm
The degree can be 1.1W/m2~3.6W/m2;
---This standard increases the air temperature in the cabinet to (38±3)℃;
---The previous version stipulates that the relative humidity during artificial weathering is 60% to 80%, and this standard specifies the relative humidity during artificial weathering
Humidity is 40% to 60%.
Appendix A of this standard is a normative appendix.
Appendix B of this standard is an informative appendix.
This standard was proposed by China Petroleum and Chemical Industry Association.
This standard is under the jurisdiction of the National Coatings and Pigments Standardization Technical Committee.
This standard was drafted by. CNOOC Changzhou Coating Chemical Research Institute, Asia Pacific Rus Material Testing Technology Co., Ltd., Kunming Shiming Technology
Development Co., Ltd., Chery Automobile Co., Ltd.
The main drafters of this standard. Ji Xiaopei, Zhang Ping, Cheng Ge, Du Changsen, Chen Zheng.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 1865-1980, GB/T 1865-1997.
GB/T 1865-2009/ISO 11341.2004
Paints and varnishes
Artificial weathering and artificial radiation exposure
Filtered xenon arc radiation
1 Scope
This standard specifies the artificial weathering test procedure for the paint and varnish exposed to the xenon lamp device and water and water vapor. Aging results
The coating can be evaluated individually by comparing the parameters selected before, during and after aging.
This standard describes some of the most important parameters and details the conditions of use of the exposure device.
2 Normative references
The clauses in the following documents become the clauses of this standard through the quotation of this standard. For dated references, all subsequent documents
The amendments (not including errata content) or revisions are not applicable to this standard, however, all parties to agreements based on this standard are encouraged to study
Is the latest version of these files available? For the cited documents without date, the latest version applies to this standard.
GB/T 3186 Sampling of raw materials for paints, varnishes and paints and varnishes (GB/T 3186-2006, ISO 15528..2000, IDT)
GB/T 9271 standard test board for color paint and varnish (GB/T 9271-2008, ISO 1514.2004, MOD)
GB/T 9278 Condition adjustment and test temperature and humidity of paint samples (GB/T 9278-2008, ISO 3270.1984, Paintsand
varnishestheirdatasystems-Temperturesandimmediatesfordimentioning, IDT)
GB/T 133452.2 Determination of paint film thickness of paints and varnishes (GB/T 13452.2-2008, ISO 2808.2007, IDT)
GB/T 2077 Inspection and preparation of paint and varnish samples (GB/T 2077-2006, ISO 1513.1992, IDT)
CIE Publication No. 85.1989 Sunlight Irradiance
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
The performance of the coating changes during the artificial weathering or artificial radiation exposure.
Note. One measure of aging is expressed in terms of exposure radiant energy H at a wavelength range below 400 nm or at a specified wavelength such as 340 nm. After artificial climate
The aging condition of aging or artificial radiation exposed coatings depends on the type of coating, the exposure conditions of the coating, and the selection used to monitor the aging process
Performance and the extent of this performance change.
3.2
A measure of the exposed radiation energy of the test board can be calculated by the following formula.
In the formula.
E---irradiance, the unit is watts per square meter (W/m2);
Note 1.H is expressed in joules per square meter (J/m2).
GB/T 1865-2009/ISO 11341.2004
3.3
Given a certain degree of aging, the degree of change in certain selected properties of the tested coating.
Note. The aging index is specified or agreed.
4 Principle
The xenon arc light filtered by the filter is used to artificially weather the coating or artificially expose the radiation. The purpose is to make the coating
After being exposed to a certain amount of radiant energy, the selected properties can be changed to a certain degree, or the coating can be aged to a certain degree.
Exposure to radiant energy. The performance selected for monitoring should be an important performance of the coating in practical applications. The performance of the exposed coating can be
Comparison of the performance of the unexposed c...
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