The fire behavior of PA6 and flame-retarded PA6 for flaming
conditions was characterized according to ISO5660 using an FTT standard cone calorimeter (FTT Company, UK) in external heat fluxes of 50 kw/[m.sup.2] with specimens of 100 x 100 x 4 [mm.sup.3].
The period between flame applications is to be 30 seconds, regardless of whether flaming
of the specimen ceases of its own accord within 30 seconds of the previous application.
A burner is placed beneath the sample for 10 seconds and the duration of flaming