ASTM International

Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-shaped Airflow Stabilizer, at 750°C
 N E2652

Annotation

This fire-test-response test method covers the determination under specified laboratory conditions of combustion characteristics of building materials.

Limitations of this fire-test response test method are shown below.

This test method does not apply to laminated or coated materials.

This test method is not suitable or satisfactory for materials that soften, flow, melt, intumesce or otherwise separate from the meeasuring thermocouple.

This test method does not provide a measure of an intrinsic property.

This test method does not provide a quantitative measure of heat generation or combustibility; it simply serves as a test method with selected (end point) measures of combustibility.

This test method does not measure the self-heating tendencies of materials.

In this test method materials are not being tested in the nature and form used in building aplications. The test specimen consists of a small, specified volume that is either (1) cut from a thick sheet; (2) assembled from multiple thicknesses of thin sheets; or (3) placed in a container if composed of grarnular powder or loose fiber materials.

Results from this test method apply to the specific test apparatus and test conditions and are likely to vary when changes are made to one or more of the following: (1) the size, shape, and arrangement of the specimen; (2) the distribution of organice content; (3) the exposure temperature; (4) the air supply; (5) the location of thermocouples.