CCC: GB Standard for Illumination of Rear Registration Plates Updated
2. November 2015The Chinese Administration SAC (Standardization Administration of the Peoples Republic of China) issued on October 9, 2015 a new GB Standard (GB stands for Guobiao, or “National Standard”) for photometric characteristics of devices for the illumination of rear registration plates of motor vehicles and their trailers.
The new GB Standard GB 18408-2015 replaces the old one (GB 18408-2001).
These are the modifications:
The ECE regulation R37 for automotive filament lamps was added as normative reference to the World Forum for Harmonization of Vehicle Regulation.
Illuminant modules which were tested under the voltage of 13.5V and 28.0V so far, have to be tested also under the voltage of 6.75V. Furthermore, the brightness of any measuring point should be less than 2.5cd/m2 by these modifications. However, in the old standard the brightness of any measuring point should be no less than 2.5cd/m2. The brightness test should be conducted with a DC regulated power supply. The luminance meter used for the test should be the one of Class 1 according to the National Metrological Verification Regulation of the People´s Republic of China.
The luminance test shall be conducted vertical to the colorless diffuse reflectance surface. The deviation of each direction shall be less than 5°. The photometric characteristic test can be conducted with a voltage of 6.75V, 13.5V or 28.0V. In the old version 6.75 V was not allowed.
This new GB Standard will become effective on July 1st, 2016. It is still not determined until which date all existing certificates need to be updated.
You can find new information about this GB Standard in our News section on our website.
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