Part 2 describes a procedure in which the textile material is held vertically in a frame. A small flame is used to ignite the specimen and the time is measured for the flame to spread up the specimen past a number of trip threads which record the time in
AS 2755.2:1985 history
0000 AS 2755.2:1985(R2013)
1970AS 2755.2:1985 Textile fabrics - Burning behaviour - Measurement of flame spread properties of vertically oriented specimens