Update #2 was published as notification that this is now a National Standard of Canada.
Preface
This is the tenth edition of CSA B70, Cast iron soil pipe, fittings, and means of joining. It supersedes the previous editions published in 2002, 1997, 1991, 1986, 1978, 1974, 1971, 1963, and 1941.
This edition includes the following significant changes:
(a) addition of a requirement to screen for radioactivity;
(b) deletion of the joint tightness test for hub and spigot joints; and
(c) revised marking requirements for elastomeric gaskets, backwater valves, and pipe.
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.
This Standard was prepared by the Technical Committee on Cast Iron Soil Pipe, under the jurisdiction of the Strategic Steering Committee on Plumbing Products and Materials, and has been formally approved by the Technical Committee. It will be submitted to the Standards Council of Canada for approval as a National Standard of Canada.
Scope
1.1
This Standard covers cast iron soil pipe, fittings, and means of joining for installation in gravity-flow plumbing systems inside and outside of buildings, above and below grade.
Note: Pipe and fittings that comply with this Standard are not universally compatible with pipe and fittings manufactured in accordance with ASTM A 74 and ASTM A 888.
1.2
In CSA Standards, 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; may is used to express an option or that which is permissible within the limits of the standard; and can is used to express possibility or capability. 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 (non-mandatory) to define their application.
1.3
The values given in SI (metric) units are the standard. The values given in parentheses are for information only. All references to gallons are to US gallons.
