This standard specifies a test method for evaluating the flame resistance of pressure-sensitive adhesive tapes under laboratory conditions. The method employs a hanging technique, where a specific flame is applied to the specimen, and its combustion behavior is observed to assess the flame-retardant properties of the adhesive tape. The standard covers test equipment, specimen preparation, detailed operational procedures, and the classification of test results. Conducting this test typically requires specialized vertical burning test apparatus or similar equipment to precisely apply the flame under controlled conditions and observe key indicators such as the burning length and after-flame time of the specimen.