ISO 12992:2017 PDF

Overview

ISO 12992:2017 - Plastics - Vertical flame spread determination for film and sheet - specifies a laboratory test method to measure vertical flame-spread behaviour of plastics in the form of film and sheet (≤ 3 mm thickness) when exposed to a small igniting flame. The method is intended for pre‑selection, quality control and comparative testing of flexible plastic films and sheets under controlled conditions, and clarifies limits on the interpretation of results for real fire hazards.

Key topics and technical requirements

• Scope: Vertically oriented specimens of plastics (film/sheet) up to 3 mm thick subjected to a small flame source.
• Test principle: Apply a defined flame for a specified time, record flame‑spread time and calculate flame-spread rate; observe flaming droplets, afterglow and extinguishing behaviour.
• Apparatus essentials:
  • Laboratory fume hood/chamber with minimum internal volume (~0.5 m3), dark interior and light level