ASME A112.18.2 pdf download Plumbing waste fittings
This Standard covers plumbing waste fittings of sizes NPS-2 and smaller.
Plumbing supply fittings are covered by ASME A1 1 2.1 8.1 /CSA B1 25.1 .
Other devices, e.g., temperature-actuated in-line mixing valves and flexible connectors under continuous
pressure, are covered by CSA B1 25.3 or other plumbing product Standards.
This Standard does not apply to pipes and tubes or pipe and tube fittings.
in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements. The purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements.
The values stated in either SI (metric) or yard/pound units are to be regarded as the standard. SI units are the units of record in Canada.
In this Standard, the yard/pound units are shown in parentheses. The values stated in each
measurement system are equivalent in application; however, each system is to be used independently.
Combining values from the two measurement systems can result in non-conformance with this Standard.
All references to gallons are to US gallons.
For information on the conversion criteria used in this Standard, see Annex A.
2 Reference publications
2.1 ASME and CSA publications
This Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto.
ASME International (American Society of Mechanical Engineers)
A1 1 2.1 8.1 -2005/CSA B1 25.1 -05
Plumbing Supply Fittings