| BS ISO 4589-2:2006-06 Ambient-temperature oxygen index test   Plastics-Determination of burning behaviour by oxygen index –Part 2: Ambient-temperature test   BS ISO 4589-2 is similar with GB/T 2406   Test principle ISO 4589-2 method for determining the minimum concentration of oxygen, in admixuture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index values(O.I.) |