This test method covers the determination of the energy required to rupture standard tension-impact specimens of plastic or electrical insulating materials. Materials that can be tested by this test method are those too flexible or too thin to be tested in accordance with Test Methods D 256, as well as more rigid materials.

The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

Note 1 : A complete metric companion to Test Method D 1822 has been developed : D 1822 M.