A PS, ABS, Polycarbonate, PMMA or PVC plastic is made from POLYMER. These polymers are manufactured by major groups such as General Electric, Total, Sabic, Bayer and BASF.
To be able to compare the level of flammability or self-extinguishing capacity between different plastics made from these polymers, it is essential first to standardise the test method in order to then define a result and allow a comparison.
This position was taken by UNDERWRITER LABORATORIES (UL USA) a few years ago. Founded in 1894 by William Henry Merrill, the group is now headed by Jennifer F. Scanlon.
In 1903, UL defined the first standardised test for testing fire doors, called « TIN CLAD FIRE DOORS ».
Today UL is testing for different applications: