The vertical and horizontal flame tests are two common test methods used to evaluate the combustion properties of materials. These tests are commonly used to measure the ability of a material to respond to a fire or other thermal event to determine its safety and suitability.
The vertical flame test is a test method that measures the burning properties of a material in the vertical direction. In the test, the sample is suspended from a vertical fixture and then a certain source of ignition is lit at the bottom of the sample. During the test, parameters such as the burning speed, flame height and duration of the material are recorded, and the material is evaluated according to the specifications specified in the standard.
Horizontal flame test is a test method that measures the burning performance of a material in the horizontal direction. In the test, the sample is placed on a horizontal fixture and then ignited by placing the fire source close to the side of the material. During the test, parameters such as the burning rate, flame height and duration of the material are recorded and the material is evaluated according to the specifications specified in the standard.
These test methods are commonly used to evaluate the combustion performance of materials such as construction materials, electrical equipment, furniture, clothing and automotive interiors. In many countries and regions, these test methods have been incorporated into relevant standards and regulations to ensure the safety and suitability of materials. When performing the vertical and horizontal flame test, the test procedures and parameters specified in the standards need to be followed to ensure the accuracy and reliability of the test results.