1.1 Scope This standard includes general requirements for photometric testing of most types of lamps. This standard specifies the standard conditions for photometric testing and recommends testing procedures to ensure sufficient accuracy and reproducibility of the determined photometric characteristics of lamps and their presentation reports. These regulations provide a basis for unified national standards and provide guidance for the testing of photometric laboratories and the expression of lamp performance data. For lamps with actual test conditions different from the standard test conditions, the standard provides measurement requirements for correction factors. For laboratory personnel and engineers, a detailed description of photometric measurement methods is the most important, and it is equally important for data users. The appropriate interpretation of data usually relies on a thorough understanding of the measurement process involved, and this standard also provides users with an understanding of photometric measurement procedures and expressed data. When there is a need for special recommendations related to measurement and data expression requirements for special types of lighting fixtures designed for extremely professional facilities, such general standards cannot cover their characteristics and should be met with many supplementary standards. These supplementary standards will be referenced in appropriate chapters of this standard and special requirements and measurement conditions will be defined when necessary. For lamps without specific standard coverage, the most suitable standard and the requirements of this general standard can be used to guide the actual measurement procedure. 1.2 Photometric characteristics Photometric characteristics can be divided into measured characteristics, which are directly measured using experimental equipment, and derived characteristics, which are calculated from measurement data. The derived characteristics are closer to the relevant lighting applications. This standard mainly involves the measured photometric characteristics
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