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Testing Center:86-0454-8326353      Fax:86-0454-8311260                            Office:86-0454-8326345      Fax:86-0454-8326360                             Editorial Office:86-0454-8326352    Fax:6-0454-8326352  
E-Mail:
jczx@jexm.net                                                                                         Address: No. 3 Anqing Street, Jiamusi City, Heilongjiang Province
 

Copyright©JIAMUSI EXPLOSION-PROOF ELECTRIC MACHINE INSTITUTE               黑ICP备13001165号              Web Designed by:www.300.cn  Haerbin

Classification summary:
办事大厅
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Data download
Datadownloadsarebeingsortedout.
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Common problem
Answer: The contact number of the testing center is 0377-63258564, the fax is 0377-63208175, and the mailbox is cqst@cn-ex.com. If you encounter technical problems, you can directly contact the central management office to arrange the project engineer's reply.
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Foreign certification process
1. When applying for the certificate of certification of foreign explosion-proof certification institutions, the client shall submit a power of attorney or sign a technical contract to CQST;
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Change Procedure for Certificate Expiration
1. The name/address of the holder of explosion-proof certificate has changed:

1. Copies of the business license of the original holder's unit, with the original official seal affixed;
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Procedures for review and review of certificates due
1.Themanufacturershallprovideanofficialletterontheapplicationforperiodicreviewandre-examinationofthe"explosion-proofcertificate"threemonthsbeforetheexpirationoftheexpirydateoftheexplosion-proofcertificate.Theletterindicatestheoriginalproductname,model,specifications,numberoftheexplosion-proofcertificate,thedateofobtainingevidenceandthepartofthemodificationofthepresentproduct. 2.CQSTreviewswhethertheoriginalproductdrawingsandtechnicaldocumentshavechanged.Thealterationpartshallbere-examinedandputonrecord(twocopiesofthealterationpartofdrawingsandtechnicaldocumentsshallbesubmittedforexamination). 3.Reviewingandcorrectingthelegacyproblemsintheoriginalproductdrawingsandtechnicaldocumentsandtheproblemsarisingfromtherevisionofthestandards. 4.Themanufacturershallprovidetheexistingproductionprototypeforthere-inspectionofexplosion-proofperformance.Theprototypeshallmeettherequirementsoftheexistingproductdrawingsandtechnicaldocuments,andpaythere-inspectionandinspectionfees. 5.Accordingtotherequirementsofthemanufacturer,aseriesofproductscanbedeliveredtothefactoryforservice. 6.Afterreexaminationandreexamination,theexplosion-proofcertificateshallberenewed.Theperiodofvalidityofthereexaminationcertificateisfiveyearsfromtheexpirationdateoftheoriginalcertificate.Ifthetimeofreexaminationisdelayed,theperiodofvalidityofthereexaminationcertificatewillbeshortenedaccordingly.Iftheexpirationdateexceedsoneyear,acompletesetofexplosion-proofinspectionshallbecarriedoutaccordingtothenewlydeliveredproducts.
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Guidelines for Product Delivery and Inspection
1. The person coming for inspection shall go through the inspection formalities at the Management Office of the Quality Inspection Center with the letter of attorney of the unit, business license or certificate of metrology certification (photocopy). Letters sent for inspection shall be filled in the product inspection contract (signed and sealed) and sent together with relevant product technical information.
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Examination of Explosion-proof Qualification Certificate
Written inspection contract (inspection contract download) (in triplicate), drawings related to explosion protection (in duplicate), product enterprise standards/technical conditions (in duplicate), product use instructions (in duplicate), product ex-factory test report (in original), product quality assurance document (if any, in duplicate), business license (in duplicate), product samples (e.g. For n-type or pouring-seal type, 3-5 samples are required, and the parts before pouring-seal type are provided; for transparent parts, 3 pieces of glass are required; for commissioning surface resistance test, samples (> 150 x 60 x 3 mm) are required; and special disassembly and assembly tools are required.
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