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Misuse of SLG certificates / test marks

Please find below information about cases of misuse of SLG test marks and forged SLG certificates.

Download list as PDF

Company Product Types Misuse Publication
Ningbo Tongrun Lighting Co. Ltd. Gartenleuchten /Outdoor fixed luminaires verschiedene /several Fälschung eines Konformitätszertifikates /Falsification of conformity certificate 2012-10
Hellweg Einkaufsgesellschaft m.b.H. Ortsfeste Leuchte / Fixed luminaire Lilia 2tlg. Art.-Nr. 560550 Unrechtmäßige Anbringung des GS-Zeichens auf einer Verpackung / Illegal GS marking on packaging 2013-06
nicht zu ermitteln / not to detect Steckdosenleisten / Socket outlets Zhongya ZY-10 Unrechtmäßige Anbringung des GS-Zeichens / Illegal GS marking 2013-08
Fenet Oy Leuchte mit Lichterkette / Luminaire with ligthing chain 76124/NL-201-10L Unrechtmäßige Anbringung des GS-Zeichens / Illegal GS marking 2014-03
Dan Yang Ming An Electrical Appliance Co., Ltd. Elektronischer Transformator MAID-0360700 Unrechtmäßige Anbringung des GS-Zeichens / Illegal GS marking 2015-03
Yongjia Jialong Electric Co.Ltd Gummi-Befestigungsbänder / Elastic strap 2pc 150cm - 4006150 Unrechtmäßige Anbringung des GS-Zeichens / Illegal GS marking 2016-03

Misuse of certificates / test marks: How to identify forged documents

Please note the following points when scrutinising documents:

  • Verify that the issuing body exists in case the body is unknown to you.
  • Check the expertise of the issuing body, i.e. by checking their accreditation documents.
  • Is the information given consistent?
  • Is the certificate signed?
  • On the certificate, is a reference document mentioned, such as a test report? - If so, request the test report and check the test details.
  • Check the validity of the certificate!

Furthermore, reputable certification bodies offer their customers to check the validity of a certificate. Look  for online databases or contact forms on their website or contact them by email, fax or post. You should receive a prompt response, normally within 24 hours.


Olaf Schiller

+49 3722 7323-790