It's all about the duration of burning.

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.

RaGZ.


On 7 April 2014 12:06, Tuyen Tran <[log in to unmask]> wrote:

> Hoping someone can help to explain on Flammable Rating: what is different
> between UL 94V-1 and UL 94V-0
>
> Thanks you
>
> Tuyen Tran (Ms.)
> QAE-Sparton VN
>
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