ISO 9773:2024Published

Plastics — Determination of burning behaviour of thin flexible vertical specimens in contact with a small flame ignition source

Plastiques — Détermination du comportement au feu d'éprouvettes minces verticales souples au contact d'une petite flamme comme source d'allumage

Abstract / scope

This document specifies a small-scale laboratory screening procedure for comparing the relative burning behaviour of vertically oriented thin and relatively flexible plastics specimens exposed to a low-energy-level flame ignition source.

NOTE  These specimens cannot be tested using method B of IEC 60695-11-10:2013 since they distort or shrink away from the applied flame source without igniting.

This test method determines the afterflame and afterglow times of specimens.

The classification system described in Annex A is intended for quality control and the preselection of component materials for products. The classification established by this method of test is applicable only to the material used for the specimens.

NOTE  Test results are influenced by material components, e.g. pigments, fillers, concentrations of fire retardants.

Life cycle

Replaces

ISO 9773:1998WithdrawnPlastics — Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition sourceInternational Standard · Published 26 Feb 1998 · ISO/TC 61/SC 4ISO 9773:1998/Amd 1:2003WithdrawnPlastics — Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition source — Amendment 1: SpecimensInternational Standard · Published 13 Oct 2003 · ISO/TC 61/SC 4