2 Reference Standard
The following criteria include the provisions of GB1865 by reference in GB 1865. GB1
When published, the version shown is valid. All standards will be revised, and all parties using GB1865 should explore the possibility of using the latest version of the following standards.
GB / T1765-79 (89) Determination of paint film preparation method of moisture resistance, salt fog, weather resistance (artificial acceleration)
GB3186-82 (89) Sampling of coating products
GB6682-92 Analysis laboratory water specifications and test methodsGB / T9271-88 color paint And varnish standard test plates (EGV ISO1514: 1984)
452.2-92 Determination of color paint and varnish film thickness [EGV ISO2808: 1974)
GB1865 uses the following definition
3.1 aging: Coating is exposed to artificial climate aging or artificial radiation until the changes in various performance during certain aging indicators.Note: A measure of aging is less than 400 two wavelengths or exposure radiation in the specified wavelength, such as 340-. After the artificial climate aging or manual radiation, the aging condition of the coating depends on the type of coating, the conditions of coating exposure, the degree of coating performance items selected by the aging process and the level of performance.
3.2 Exposure radiation energy H: Test plate has been used as a measure of exposed radiation energy, which can be calculated by formula (1):
h EDT (1)
T-exposure n (s);
H-exposed radiation energy (J / M2).
If the irradiance E is constant throughout the exposure time, radiation exposure h can be easily obtained by the product of E and T
3.3 aging indicators: A given degree aging, stipulates or agreed to the degree of change in the test coating in some selected performance.
QSQSQ-lab xenon lamp aging test chamber for GB / T 1865-2009 Cycle A method 1 test method
Q-SUN xenon lamp aging test chamber for GB/ T 1865-2009 Cycle A method of test
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