Samson 611 Mounting And Operating Instructions page 51

Physikalisch-Technische Bundesanstalt
Braunschweig und Berlin
(12) The marking of the equipment shall include the following:
Zertifizierungsstelle Explosionsschutz
By order
(Signature)
Dr.-Ing. U. Klausmeyer
Oberregierungsrat
The results laid down in this test report refer exclusively to the test object and the technical documentation submitted. Test reports without signature
and seal are invalid. This test report may be reproduced unaltered only. Extracts or amendments shall require the prior approval of the Physikalisch-
Physikalisch-Technische Bundesanstalt – Bundesallee 100 - D 38116 Braunschweig
Ptb.EC-6116-2.doc
II 2G EEx d IIC T6
(Seal)
Technische Bundesanstalt.
Braunschweig, 30.04.1998