National standard of the People’s Republic of China
Photometric characteristics of rear fog lamp
for motor vehicles and their trailers
GB 11554-1998
Substitution of GB/T 11554-89
1 Scope
The standard specifies the specification 、the test methods and the test rules of rear fog lamp for
motor vehicles .
This standard applies to the rear fog lamps used on the motor vehicles and their trailers of
Category M,N and O.
2 Normative reference
The following standards contain provisions which ,through reference in this text ,constitute
provisions of this standard. At the time of publication ,the editions indicated were valid. All
standards are subject to revision, and parties to agreement based on this standard are encouraged
to investigate the possibility of applying the most recent editions of the standards indicated
below.
GB 4785-1998 Prescription for installation of the external lighting and light-signalling
devices for motor vehicles and their trailers
GB/T 3978-1994 Standard illuminants and illuminating—viewing conditions
IEC Publication 61-2 Lamp cap and lamp seat as well as the gauge for control of their
exchangeability and stability
GB 4599-1994 Photometric characteristics of headlamps for motor vehicles
3 Definitions
For the purpose of this standard:
Rear fog lamp: a lamp used in the state of fog 、snow、r
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