Standard Test Method for Determination of Time to Burn-Through Using the Intermediate Scale Calorimeter (ICAL) Radiant Panel

Importancia y uso:

5.1 This test method is used primarily to determine the time to burn-through and the time to ignition of materials, products, and assemblies.

5.2 Representative joints and other characteristics of an assembly shall be included in a specimen when these details are part of normal design.

5.3 This test method is applicable to end-use products not having an ideally planar external surface. The heat flux shall be adjusted to be that which is desired at the average distance of the surface from the radiant panel.

5.4 In this procedure, the specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in this procedure.

5.5 Representative materials and thicknesses shall be included in a specimen when these details are part of normal design.

5.6 This method can also be used for research and development of various material types to be included in larger-scale fire test assemblies (for example, Test Methods E119).

5.7 Test Limitations: 

5.7.1 The test results have limited validity if: (a) the specimen melts sufficiently to overflow the drip tray, or (b) explosive spalling occurs.

5.7.2 Report observations of specimens that sag, deform, or delaminate.

Subcomité:

E05.21

Referida por:

E0176-24, D8391-22E01

Volúmen:

04.07

Número ICS:

13.220.40 (Ignitability and burning behaviour of materials and products)

Palabras clave:

burn-through; effective specific heat; effective thermal conductivity; emissivity; ICAL; ignitability; intermediate scale calorimeter; surface temperature; sustained ignition;