Work Item
ASTM WK91303
Revision of E3367-23 Standard Test Method for Determining the Combustion Behavior of Layered Assemblies using a Cone Calorimeter
Rationale
Recent tests conducted at UDRI and NIST identified a limitation in the current testing setup. Thin samples that emit significant combustible volatiles (such as smoldering materials) from the bottom can experience ignition when these pyrolyzates reach the top of the specimen. This ignition can lead to a flame traveling back down to the bottom of the specimen, potentially causing ignition there, which might be mistaken for burn-through.
To mitigate this issue, modifications are being made to the sample holder to incorporate a flame stopper. Simultaneously, slight adjustments are being implemented to streamline manufacturing processes without compromising critical parameters that influence the test's fire performance.
Additionally, it is proposed to incorporate a video camera to record tests. This addition will help in observing and verifying that the aforementioned phenomenon does not occur during testing.
Work Item Status
Date Initiated: 06-20-2024
Technical Contact: Mauro Zammarano
Item: 000
Ballot:
Status: