Explanation of Fire Indicies

Where we have information about a timber's Fire Indicies, we have published it on the information page for that species.
Please note that these indicies have come from a range of sources and should be used as a guide only.

Fire Index	Description
Ignitability Index: (NZ/AS 1530.3)	As per the New Zealand/Australian Joint Standard NZ/AS 1530.3 A scale of 0-20 of how quickly/easily an item will ignite.
Flame Spread Index: (NZ/AS 1530.3)	As per the New Zealand/Australian Joint Standard NZ/AS 1530.3 A scale of 0-10 of how quickly flame will spread.
Heat Evolved Index: (NZ/AS 1530.3)	As per the New Zealand/Australian Joint Standard NZ/AS 1530.3 A scale of 0-10 of how much heat is given off.
Smoke Developed Index:   (NZ/AS 1530.3)	As per the New Zealand/Australian Joint Standard NZ/AS 1530.3 A scale of 0-10 of how much smoke is given off.
Flame Spread Index: (ASTM E84)	Based on the North American ASTM E84 tunnel test, which is designed to test the flame spread characteristics of flat surface materials. The Reference Standard/Mesurement Scale is such that Asbestos Cemment Board will have a Flame Spread Index of 0, and Red Oak Flooring will have a Flame Spread Index of 100.
Smoke Developed index: (ASTM E84)	Based on the North American ASTM E84 tunnel test, which is designed to test the flame spread characteristics of flat surface materials. The Reference Standard/Mesurement Scale is such that Asbestos Cemment Board will have a Smoke Developed Index of 0, and Red Oak Flooring will have a Smoke Developed Index of 100.