UL94 V-0

[lingmoor]

Hi

Has anyone come across Lexan F2000 polycarbonate sheeting that the company say can be compared with Class 0 SSOF?

The  specifications are UL94 V-0 (see below)

The blurb states that this  is an aircraft grade product and...
 
UL 94, the Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing is a plastics flammability standard released by Underwriters Laboratories of the USA.[1]

The standard classifies plastics according to how they burn in various orientations and thicknesses. From lowest (least flame-retardant) to highest (most flame-retardant), the classifications are:

   
   HB: slow burning on a horizontal specimen; burning rate < 76 mm/min for thickness < 3 mm and burning stops before 100 mm
   V-2 burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
   V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
   V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
   5VB: burning stops within 60 seconds on a vertical specimen; no drips allowed; plaque specimens may develop a hole.

Thanks

[Fishy]

Only just spotted this...

There will be no correspondance between UL 94 results and either the National classes (Classes 4 to 1 and '0') or the Euroclasses.  It's a completely different type of test - small-scale and used for small electrical components rather than wall & ceiling linings.

[wee brian]

Agreed, sounds highly suspicious.

If they are really pushy get a fire lab to do a 476 part 7 indicative test.

couple of hundred quid will give you an idea if its class 1