CAN ULC-S127-14 PDF Download

The CAN ULC-S127-14 standard underwent minor changes, primarily updating the existing reference standards and removing the defined term "Smoke Developed Value (SDV)," which was not referenced in the standard.

This method of testing flammability characteristics is specifically applicable to certain low-density insulating materials that do not melt or drip when exposed to fire. The purpose of this test is to determine the comparative burning characteristics of the material under test by subjecting it to a test fire in a corner wall configuration.

This standard is used to establish the Flame Spread Classification for foamed plastics that require the use of the rate formula FSV = 92.5 d/t, but where the parameters "d" and "t" are difficult to define. The focus of the test is to assess the material's performance during the exposure period, rather than determining its suitability for use after the test.