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Flame Retardant Rating Criteria Summary:What is Flame Retardant Rating Testing?
2023/11/06
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Flame retardancy rating testing is a test method used to evaluate the flame retardancy of a material under fire conditions. It determines the flame retardancy rating of a material by testing its burning characteristics and flame propagation under specific flame exposure conditions. The following is a summary of some commonly used flame retardant rating standards:
1. American Standard:
- UL 94: This is a flame retardant rating test standard developed by Underwriters Laboratories (UL) in the United States. It is used to evaluate the burning performance of plastic materials and classify the materials into different classifications such as V-0, V-1 and V-2 ratings.
- ASTM E84: This is a standard developed by the American Society for Testing and Materials (ASTM) for evaluating the combustion performance of building materials (e.g., wallboard, flooring, ceilings, etc.). It is based on Flame Spread Index (FSI) and Smoke Developed Index (SDI) for rating.
2. European Standards:
- EN 13501: This is a series of European standards for assessing the flame retardancy of building materials and components. It includes different test methods and classifications such as classes A1, A2, B, C, D, E, F, where class A1 is the highest class and indicates non-combustible materials.
- EN 60695: This is a series of European standards for the testing of flame retardant ratings of materials for electrical and electronic equipment. Among them, EN 60695-11-10 is its core part, providing oxygen index test, vertical burning test and other related test methods.
3. Chinese Standard:
- GB/T 2406: This is a Chinese national standard for evaluating the burning performance of plastic materials and classifying plastics into different flame retardant grades, such as HB, V-2, V-1 and V-0 grades.
- GB 8624: This standard specifies the method of evaluating the burning performance of building materials, and divides building materials into different fire protection grades, such as Grade A, Grade B1, Grade B2, and so on.
It should be noted that the specific fire retardant rating standards vary according to different materials and application areas. In addition, there are other relevant standards set by other countries and regions for reference and compliance by different industries and applications.
The standards listed above are just a few of the common flame retardant ratings, but there are many others to choose from. If you have specific requirements for flame retardancy ratings for a particular material or application, please refer to the appropriate standards document or consult a professional organization for accurate information and guidance.
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