Baijian Testing is mainly engaged in textile, insulation, cosmetics, food, hardware industry related product testing, as well as providing product certification services, but also in the broadening of the scope of the testing industry, the laboratory issued a report can be stamped CNAS/CMA/CAL qualification seal, the report is true and effective.
Testing process
1, sending samples
2, checking requirements
3, targeted quotation
4, both parties determine, sign a contract, start
the experiment5, complete the experiment: the testing cycle (can be expedited) will be changed according to the sample and its testing items / methods, you can consult the engineer
6, issue a test report, and provide post-service.
The scope of this standard specifies the relevant definitions, basic parameters, technical requirements, inspection and testing methods of electrochemical rectifiers. This standard is applicable to high-power power semiconductor diode rectifiers and thyristor rectifiers used as electrolytic DC power sources in the electrochemical industry. For high-power electrical rectifiers with similar load characteristics such as graphitization and silicon carbide, this standard can be used as a reference. The references in the following standards constitute the references in this standard. At the time of international publication, all versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB 2536-90 Transformer Oil GB/T 2900.32-95 Electrical Terminology Electrical Semiconductor Devices GB/T 2900.33-93 Electrical Terminology, Power Electronics Technology (cqv IEC 50-551:1982) GB 3047.1-82 Panel GB/T 3859.1-93 Semiconductor Converters, Basic Dimensions Series for Flocking and Frames, Regulations on Basic Requirements (eqv IEC 146-1-1:1991) GB/T 3859.2-93 Application Guidelines for Semiconductor Converters GB 10236-88 Guidelines for Interconnection, Coherence, and Protection Methods between Semiconductor Power Converters and the Power Grid (neq ANSI/IEEE519: 1981) GB/T14549-93 Electric Energy Quality - Harmonics in Public Power Grids JB1505-75- Method for Model Selection of Semi conductive Power Converters JB 4276-86 Packaging Technology for Power Converters
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 problems100% inspection 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 ChinaBaijian is a comprehensive testing service platform, bringing together many CNAS, CMA, CAL and other qualification testing institutions all over the country.