Flame retardant grade
Classification:
flame retardant fabric
Flame retardant grade, that is, the property of a substance or the material after treatment that can significantly delay the spread of flames, and is classified based on this property.
Related levels:
1. HB: Flame retardant grade of UL94 standard midsole. Required for 3 to 13
mm thick For samples with a burning speed of less than 40 mm permin; for samples less than 3 mm thick
product, the burning speed is less than 70 mm per minute; or it goes out in front of the 100 mm mark .
2. V-2: Test the sample twice for 10 secondsBurningAfter the test, the flame went out within 60 seconds. There may be burning objects falling.
3. V-1: After two 10-second combustion tests on the sample, the flame went out within 60 seconds. No burning objects can fall.
4. V-0: After two 10-second combustion tests on the sample, the flame went out within 30 seconds. No burning objects can fall
AA
Disclaimer:
Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.
AA
