BS EN ISO 4589-1:2017

This standard BS EN ISO 4589-1:2017 Plastics. Determination of burning behaviour by oxygen index is classified in these ICS categories:

• 13.220.40 Ignitability and burning behaviour of materials and products
• 83.080.01 Plastics in general

This document specifies the general requirements for the oxygen index (OI) test which are further described in ISO 4589‑2 and ISO 4589‑3 as follows:

• ISO 4589‑2 describes a method for determining the minimum volume fraction of oxygen in a mixture of oxygen and nitrogen introduced at 23 °C ± 2 °C that will just support combustion of a material under specified test conditions;

• ISO 4589‑3 describes methods of carrying out the same determination over a range of temperatures typically between 25 °C and 150 °C (although temperatures up to 400 °C can be used).