prEN 532 LIMITED FLAME TEST METHOD
"Clothing for Protection Against Heat and Flame- Method of test for limited flame spread"
Explanation of Test Method:
The test specimen is positioned vertically on the specimen holder. A flame is applied for 10 s at the bottom of the specimen and then removed. A pass or fail is given according to: afterflame, afterflame time, afterglow, afterglow time, flaming debris, molten debris, char length, and any holes produced on the specimen.
afterflame- Persistence of flaming of material under the specified test conditions, after the ignition source has been removed.
afterflame time- The length of time for which a material continues to flame, under the specified test conditions, after the ignition source has been removed.
afterglow- Persistence of glowing combustion of a material under specified test conditions, after flaming has ceased or removal of ignition source.
afterglow time- The time for which a material continues to afterglow after flaming has ceased or the removal of the ignition source.
flaming debris- Material separating from the specimen during the test procedure and falling below the lower edge of the test specimen continuing to flame as it falls.
molten debris- Molten material separating from the specimen during the test procedure and falling below the lower edge of the test specimen without flaming.