1 Scope
This standard specifies the photometric characteristics, test methods and inspection rules of motor vehicle front fog lamps equipped with filament lamps.
This standard is applicable to various front fog lamps for motor vehicles of Categories M and N.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties who enter into agreement according to this standard are encouraged to study whether the latest editions of these documents apply. For undated references, the latest edition applies to this standard.
GB 4599-2007 Motor Vehicle Headlamps Equipped with Filament Lamps
GB 4785 Prescription for Installation of the External Lighting and Light-signaling Devices for Motor Vehicles and Their Trailers
GB 15766.1 Filament Lamps for Road Vehicles - Dimensional, Electrical and Luminous Requirements (GB 15766.1-2000, idt IEC 60809: 1995)
ECE R37 Uniform Provisions Concerning the Approval of Filament Lamps for Use in Approved Lamp Units of Power-driven Vehicles and of Their Trailers
3 Terminologies and Definitions
For the purposes of this standard, the terminologies and definitions specified in GB 4599, GB 4785 and GB 15766.1 apply.
Foreword i
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Different Types of Front Fog Lamps
5 Technical Requirements
6 Test Methods
7 Inspection Rules
Appendix A (Normative) Stability Test of Photometric Characteristics of Front Fog Lamps
Appendix B (Normative) Requirements of Plastic Lens Front Fog Lamp - Lens or Materials Specimen and Complete Lamp Test
Appendix C (Normative) Test Sequence
