Prolonged burning: refers to the phenomenon that the material continues to burn after leaving the fire source.
Smoldering: refers to the phenomenon that the material burns slowly without flame after leaving the fire source.
Melt drop: refers to the phenomenon that the material melts or drips during the ignition process.
Arc: It is a kind of gas discharge phenomenon, the instantaneous spark produced by the current passing through some insulating medium.
1. Meet EN533 index 3: Perform horizontal combustion according to EN532. After the test sample is ignited, the flame cannot burn and spread to the bottom and top of the sample or the vertical edge of the fabric; there should be no burning debris (melt droplets) from Falling from the cloth; after removing the flame to stop burning, smoldering should not extend from the carbonized area on the fabric to the undamaged area on the fabric; no holes are generated; the flame extension time of any one of the six test samples shall not exceed 2 second.
A. Wash 12 times at 75℃ (in accordance with the industrial washing method of EN ISO 10528); it can also be washed 5 times according to customer requirements before testing.
This method is suitable for chemical fiber, pure cotton and its blended fabrics.