ANSI IAPMO Z 124.4 -2006

This standard covers physical requirements and test methods for performance, and dimensions, in addition to general requirements of materials, workmanship and finish of plastic water closets bowls, tanks, tank covers or combinations of same. The materials and equipment which are listed to conduct the tests in this standard are provided for reference in determining compliance with this voluntary standard. Materials and equipment of similar design, composition, and specification shall also be permitted to conduct these tests.