UL file numbers
The UL file numbers are assigned by the Underwriters Laboratories organization for checking products and are primarily used to find safety-related measures. It is particularly important to document the burning behavior of plastics (yellow card) and to classify them (UL file number).
The most important UL file numbers are:
Mylar A: E93687
Hostaphan WN: E53895
Hostaphan RN: E53895
Nomex Typ 410: E34739
Nomex Typ 411: E34739
Nomex Typ E56: E34739
Makrofol DE: E41613
Ultem WH217: E61257
Norton TH (Taimide): E231847
Noryl EFR 0735: E121652, E207780
(Source: data sheet of the products)
Since Dr. Dietrich Müller GmbH is recognized as a UL recognized repackager, the materials processed by us do not lose their UL approval. This approval is just as important for customers who only need small series as it is for customers who Mass stamping parts need.