Work Item
ASTM WK94941
New Test Method for Horizontal and Vertical Exterior Vents Exposed to Flame
1. Scope
1.1. This fire-test-response standard assesses the ability of vents to limit passage of hot gases, radiation, and flames during a prescribed fire test exposure in either a horizontal or vertical orientation. The flame exposure provides sudden and continual direct flame exposure to vent samples. 1.2. Vent samples intended to be installed on the top side of the roof surface are not covered in this standard. 1.3. Results generated by this test method provide the vent’s fire-test response characteristic when exposed to sudden direct flame impingement 1.4. This test method does not provide quantitative information about the test assembly related to the leakage of smoke, or gases, or both. 1.5. This test method does not apply to a test assembly having other components than those tested. 1.6. The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered requirements of this standard. 1.7. Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems has the potential to result in non-conformance with the standard. 1.8. Unless otherwise specified, the tolerance for dimensions in figures and text in this document shall be ± 13 mm (0.5 in.). 1.9. This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.10. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.11. Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.Keywords
exterior vent samples; consistent and continual flames to direct flame exposureRationale
This test method provides a method to expose exterior vent samples to consistent and continual flames to direct flame exposure. There is currently a standard that exposes non-mechanical dampers to direct flames (E2912),
Work Item Status
Date Initiated: 05-13-2025
Technical Contact: Brent Pickett
Item: 003
Ballot: E05.14 (25-03)
Status: In Balloting