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CSA B45.8:23/IAPMO Z403-2023


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CSA B45.8:23/IAPMO Z403-2023 Terrazzo, concrete, composite stone, and natural stone plumbing fixtures

standard by CSA Group, 08/01/2023

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This is the third edition of CSA B45.8/IAPMO Z403, Terrazzo, concrete, composite stone, and natural stone plumbing fixtures. It supersedes the previous edition, published in 2018. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was prepared by the IAPMO Plumbing Standards Committee and CSA Technical Committee on Plumbing Fixtures (B45). The CSA Technical Committee operates under the jurisdiction of the CSA Strategic Steering Committee on Construction and Civil Infrastructure. This Standard has been formally approved by the IAPMO Standards Committee and the CSA Technical Committee in accordance with the ANSI Essential Requirements: Due process requirements for American National Standards, IAPMO Policies and Procedures for Consensus Development of American National Standards, SCC Requirements and Guidance ‐ Accreditation of Standards Development Organizations, and IAPMO Policies and Procedures for Development of National Standards of Canada. This Standard was approved as an American National Standard on April 27, 2023. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.


1.1 This Standard covers terrazzo, concrete, composite stone, and natural stone plumbing fixtures and specifies requirements for materials, construction, performance, testing, and markings of these fixtures.

1.2 This Standard covers the following plumbing fixtures: a) bathtubs and combination tub/showers; b) lavatories; c) shower bases and shower stalls; and d) sinks: i) bar sinks; ii) kitchen sinks; iii) laundry sinks; iv) service sinks; and v) wash fountains.

1.3 In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy 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. Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

1.4 SI units are the units of record in Canada. In this Standard, the inch/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 U.S. gallons. For information on the conversion criteria used in this Standard, see Annex A.