GB 21259-2007 Headlamps equipped with gas-discharge light sources for motor vehicle (Text of document is in English) - Beijing translation compay

Contents
Foreword
1 Scope
2 Normative References
3 Terms and definitions
4 Different types of the headlamps
5 Technical requirements
6 Test methods
7 Inspection rules
Annex A (Normative) Measuring screen
Annex B (Normative) The stability test for the light distribution characteristics of the headlamp
Annex C (Normative) The requirements of headlamp with a plastic lens - lens or material sample
and the complete headlamp test
Annex D (Normative) Test sequence
Annex E (Normative) Reference center
Annex F (Normative) Voltage mark
Annex G (Informative) Example of the lighting methods of the stability tests for the light
distribution characteristics