This standard specifies the technical requirements, test methods, and inspection rules for the photometric performance of front position lamps, rear position lamps, clearance lamps, and brake lamps for automobiles and trailers. This standard applies to front position lights, rear position lights, clearance lights, and brake lights used in M, N, and O category vehicles and trailers. In this standard, the various signal lights mentioned above are also referred to as devices. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB 4599 Automotive Filament Bulb Headlamps GB 4785 Installation Regulations for External Lighting and Light Signaling Devices of Motor Vehicles and Trailers GB/T 15766.1 Dimensions of Bulbs for Road Motor Vehicles Uniform provisions concerning the approval of filament lamps for use in approved lamp units on power driven vehicles and of their trailers (ECE R37) [Uniform provisions concerning the approval of light emitting diode (LED) light sources for usc in approved units on power driven vehicles and their trailers]
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China