Our Test Protocols

We Test Building Materials Rigourously for High Accuracy and Optimum Results

ISO 9705 - Internal Room Corner Testing

(Part of Testing for Material Group Numbers)

Ignis Labs has two methods for determining the Group Number of a material as outlined in AS 5637. The first is the predictive testing method which in accordance with AS/NZS 3837, ISO 5660 is carried out using cone calorimeter and the other is the Room Testing method which is done as per AS ISO 9705.


Materials not suitable for predictive testing using a cone calorimeter are to be tested within a room with using a gas burner located in the corner. This is the ISO 9705 test. The room is 2.4m wide x 2.4m high and 3.6m deep. The material is to be installed on three sides of the room and also on the ceiling. A sand box burner is placed in the corner of the room and gas supplied to generate 100kW for ten minutes and then increased to 300kW for a further ten minutes.



The group number is established when the room fire reaches an intensity of 1MW in one of the following stages:

  • 00 - 02 min :: Group 4

  • 02 - 10 min :: Group 3

  • 11 - 20 min :: Group 2

  • Does not reach 1MW :: Group 1


The samples installed in the room are to be supplied with an installation design along with jointing and fixing systems for inclusion in the test report.