Brochure/Catalogue

Tested down to the details
Flammability test
The ammability characteristics of plastic are tested here
and categorised in the following classes according to UL 94
:
Surface analysis
Scanning electron microscopy provides a high-resolution
view of the surface that also has a high depth of eld.
When used together with electron probe microanalysis
(or EDX: energy dispersive x-ray analysis), a qualitative and
quantitative analysis of the chemical composition of the
surface is possible. This delivers a spatial resolution in the
micron range.
The following aspects can be examined when inspecting
enclosures:
• Inspection of welded-on, electro-polished components
• Corrosion analysis (for example, the brass earthing stud)
• Analysis of the pores on the silicone seal
• Chemical analysis of the surface of the enclosure
Flammability ratings Position
Test piecer
Criteria Enclosure Image
HB horizontal • Burn rate
< 76 mm/min;
thickness of test piece < 3 mm
• Burn rate
< 38 mm/min;
thickness of test piece > 3 mm
TBF (Grey lid)
 
0DUNLQJ FD

V-0 vertical • Self-extinguishing within 10 s
• No drippage permitted
Klippon
®
POK
7HVWSLHFH



V-1 vertical • Self-extinguishing within 30 s
• No aming drippage permitted
V-2 vertical • Self-extinguishing within 30 s
• Flaming drippage permitted
TBF (transparent lid),
MPC, FPC
5VB horizontal • Self-extinguishing within 60 seconds,
after ve times exposing to a 500 W ame
for ve seconds each
• Test piece may burn through (burn hole)
7HVWSODWH
5VA horizontal • Similar to 5VB but test piece may not
burn through (no burn hole)
312454030000