GB/T 40302-2021 Active
GB/T 40302-2021 Plastics—Determination of burning behaviour of thin flexible vertical specimens in contact with a small-flame ignition source
Abstract
1.1 This document specifies a small-scale screening procedure in the laboratory for comparing the relative combustion performance of vertical soft thin plastic samples exposed to low-energy ignition sources. It is suitable for samples that cannot be tested using Method B of ISO 1210 due to twisting or shrinking during ignition.
1.2 This document specifies a method for measuring the flame and afterglow time of samples.
1.3 The grading described in Appendix A can be used for quality control or pre-selection of product raw materials. The grading determined using this test method is only applicable to the materials used in the measurement of the samples.
Note: The test results are influenced by the material components, such as pigments, fillers, and flame retardant concentrations.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 40302-2021 |
| CCS | Basic standards and general methods for synthetic resins and plastics |
| ICS | Plastic Composite |
| Implement Date | 2022-03-01 |