ASTM D635
Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position


ASTM D635 establishes the testing methodology for evaluating the flammability of plastic materials by measuring their burn rate under controlled laboratory conditions. The standard applies to solid polymeric materials, including elastomers and composites, which are exposed to a standardized reference flame in either vertical or horizontal orientation. By quantifying flame propagation speed across the specimen surface, this test classifies materials according to their fire behavior and ignitability performance, providing essential data for regulatory compliance and industrial safety assessments.


ASTM D635 standard webpage
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