BAIJIAN - Third party testing organization
Test items include aerodynamic performance、 flow rate、 ventilation rate、 ventilation efficiency、 noise level、 static pressure test、 bearing temperature rise、 support vibration speed、 service life、 safe operating time、 critical speed、 etc. Applicable scope: centrifugal fans、 axial fans、 diagonal fans、 cross flow fans、 industrial fans、 explosion-proof fans、 small cross flow fans、 marine explosion-proof axial fans、 marine axial fans、 marine explosion-proof centrifugal fans、 marine centrifugal fans、 coal mine axial main fans、 jet fans、 etc. Relevant Testing Standards GB 19761-2020: Energy Efficiency Limits and Energy Efficiency Grades for Ventilators GB/T 1236-2017: Performance Testing of Standardized Air Ducts for Industrial Ventilators GB/T 30257-2013: Energy Measurement and Verification Technical Requirements for Ventilator Systems GB/T 13467-2013: Electrical Energy Balance Testing and Calculation Methods for Ventilator Systems GB/T 28556-2012: Flameproof and Intrinsically Safe Variable Frequency Speed Control Controllers for Coal Mine Ventilators GB/T 26410-2011: Explosion proof Ventilators GB/T 18024.7-2010: Coal Mine Machinery Graphical symbols for mechanical technical documents - Part 7: Graphical symbols for compressors、 ventilators、 and pumps - GB/T 13933-2008 Small cross flow ventilators - GB/T 3235-2008 Basic types of ventilators Dimensional parameters and performance curves GB/T 13470-2008 Fan system economic operation GB/T 11800-2008 Marine explosion-proof axial flow fan GB/T 11864-2008 Marine axial flow fan GB/T 11799-2008 Marine explosion-proof centrifugal fan GB/T 11865-2008 Marine centrifugal fan GB/T 21151-2007 Coal mine axial flow main fan technical conditions GB/T 10178-2006 Industrial fan on-site performance test GB/T 19843-2005 Industrial fan jet fan performance test inspection Precautions for testing reports: 1. The report is invalid without a "research and testing special seal" or official seal、 and the report is invalid without anti-counterfeiting QR code; 2. The copied report is invalid without re stamping the "Research and Testing Special Seal" or official seal; 3. The report is invalid without the signature of the main inspector、 reviewer、 or approver; 4. The report is invalid if altered; 5. If there are any objections to the testing report、 they should be raised within 15 days from the date of receiving the report、 and overdue requests will not be accepted
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 problemsinspection 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