ASME A112

The ASME A112 standards create a comprehensive series comprised of over forty plumbing standards which provide expectations for performance and tests for a wide range of plumbing products and assemblies. Some of these products include:

  • Bathtubs
  • Bidets
  • Drinking fountains
  • Lavatories
  • Shower bases
  • Sinks
  • Urinals
  • Water closets
  • Flexible water connectors
  • Plastic, stainless steel, and cast-iron waste fittings

While the standards are specific to a product type or assembly, many of these standards have overlapping performance and durability testing requirements. ASME A112.19.1/CSA B45.2 (Enamelled Cast Iron and Enamelled Steel Plumbing Fixtures), ASME A112.19.2/CSA B45.1 (Ceramic Plumbing Fixtures), and ASME A112.19.3/CSA B45.4 (Stainless Steel Plumbing Fixtures) have several overlapping test methods such as the field-installed tiling-flange seal test, the overflow test for lavatories and sinks, and the warpage test. These standards provide requirements for product design, material durability, and overall structural performance.