The ISO 12992 standard specifies a test method for the combustion performance of Plastic films and sheets under vertical flame propagation conditions. This method determines the flame propagation rate and combustion characteristics of Plastic films or sheets by exposing them to a source of fire under standard conditions. This test is essential for assessing the fire safety of plastic materials, especially in the fields of construction, automotive and electronics. The standard provides specific test equipment requirements, test procedures, data recording and evaluation methods to ensure the accuracy and conformity of test results. Through this standard, manufacturers are able to ensure the safety of their products in the face of a source of fire and meet relevant regulatory and certification requirements.