ASTM D56 Flash Point Test

ASTM D56 Flash Point Test Methods determine the lowest temperature at which a solvent will produce a flammable mixture near its surface. The product flash point is required to determine chemical classification for shipping and labeling (both business labels and retail chemical product labels).

ASTM D56 is a testing standard for products such as certain cleaning chemicals, consumer chemicals such as hand sanitizers or surface cleaners containing alcohol, or workplace chemicals such as lubricants or solvents. Often these products contain one or more chemicals that are flammable, and testing will determine whether the overall mixture is flammable. This test is designed for substances and mixtures with an expected flash point of less than 93.3°C.

The ASTM D56 test method covers the determination of the flash point of a low viscosity liquid using the Label Closed Cup Tester. 50 mL of liquid sample is placed in the tester cup using graduated cylinder Both cylinder and sample are pre-cooled, it should be ensured that the sample temperature is 27 ± 5°C or less at the start of the test, whichever is the lowest, is 10°C below the expected flash point, The sample is heated at a slow constant rate. The ignition source is applied at regular intervals, and the flash point is the lowest temperature at which application of the ignition source causes the vapor above the sample to ignite. The sample is considered glowing when a large flame appears and instantly spreads itself over the entire surface of the test sample. The observed flash point will be corrected for barometric pressure.

EUROLAB, together with its state-of-the-art accredited laboratories and expert team, helps you get precise and fast results within the scope of ASTM D56 test.