scope:

Preface

This is the fifth edition of the CSA B137 Series of Standards, Thermoplastic pressure piping compendium. It supersedes the previous editions published in 2009, 2005, 2002, and 1999. It consists of the following Standards:

(a) the ninth edition of CSA B137.0, Definitions, general requirements, and methods of testing for thermoplastic pressure piping, which supersedes editions published in 2009, 2005, 2002, 1999, 1993, 1986, 1981, and 1973;

(b) the ninth edition of CSA B137.1, Polyethylene (PE) pipe, tubing, and fittings for cold-water pressure services, which supersedes editions published in 2009, 2005, 2002, 1999, 1995, 1989, 1983, and 1970;

(c) the seventh edition of CSA B137.2, Polyvinylchloride (PVC) injection-moulded gasketed fittings for pressure applications, which supersedes editions published in 2009, 2005, 2002, 1999, 1993, and 1989;

(d) the eleventh edition of CSA B137.3, Rigid polyvinylchloride (PVC) pipe and fittings for pressure applications, which supersedes editions published in 2009, 2005, 2002, 1999, 1993, 1990, 1986, 1981, 1972, and 1970;

(e) the second edition of CSA B137.3.1, Molecularly oriented polyvinylchloride (PVCO) pipe for pressure applications, which supersedes the edition published in 2009;

(f) the ninth edition of CSA B137.4, Polyethylene (PE) piping systems for gas services, which supersedes editions published in 2009, 2005, 2002, 1999, 1992, 1986, 1977, and 1971;

(g) the sixth edition of CSA B137.4.1, Electrofusion-type polyethylene (PE) fittings for gas services, which supersedes editions published in 2009, 2005, 2002, 1999, and 1989;

(h) the eighth edition of CSA B137.5, Crosslinked polyethylene (PEX) tubing systems for pressure applications, which supersedes editions published in 2009, 2005, 2002, 1999, 1997, 1996, and 1989;

(i) the eighth edition of CSA B137.6, Chlorinated polyvinylchloride (CPVC) pipe, tubing, and fittings for hotand cold-water distribution systems, which supersedes editions published in 2009, 2005, 2002, 1999, 1996, 1983, and 1971;

(j) the eighth edition of CSA B137.8, Polybutylene (PB) piping systems for pressure applications, which supersedes editions published in 2009, 2005, 2002, 1999, 1992, 1986, and 1977;

(k) the seventh edition of CSA B137.9, Polyethylene/aluminum/polyethylene (PE-AL-PE) composite pressure-pipe systems, which supersedes editions published in 2009, 2005, 2002, 1999, 1998, and 1991;

(l) the seventh edition of CSA B137.10, Crosslinked polyethylene/aluminum/crosslinked polyethylene (PEX-AL-PEX) composite pressure-pipe systems, which supersedes editions published in 2009, 2005, 2002, 1999, 1998, and 1991;

(m) the sixth edition of CSA B137.11, Polypropylene (PP-R) pipe and fittings for pressure applications, which supersedes editions published in 2009, 2005, 2002, 1999, and 1993; and

(n) the sixth edition of CSA B137.12, Polyamide-11 (PA-11) piping systems for gas services, which supersedes editions published in 2009, 2005, 2002, 1999, and 1996 under the title Polyamide (PA) piping systems for gas services.

CSA B137.0 provides requirements and test methods that are common to some or all of the Standards of the CSA B137 Series. Wherever possible, individual Standards make reference to the relevant clauses in CSA B137.0.

These Standards are considered suitable for use for conformity assessment within the stated scopes of the Standards. These Standards were prepared by the Technical Committee on Plastic Pressure Piping, under the jurisdiction of the Strategic Steering Committee on Water Management Products, Materials, and Systems, and have been formally approved by the Technical Committee. These Standards will be submitted to the Standards Council of Canada for approval as National Standards of Canada.

Notes:

(1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.

(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

(3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization - Code of good practice for standardization as "substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity". It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

(4) To submit a request for interpretation of this Standard, please send the following information to inquiries@csagroup.org and include "Request for interpretation" in the subject line:

(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

(b) provide an explanation of circumstances surrounding the actual field condition; and

(c) where possible, phrase the request in such a way that a specific "yes" or "no" answer will address the issue. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.

(5) This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiries@csagroup.org and include "Proposal for change" in the subject line:

(a) Standard designation (number);

(b) relevant clause, table, and/or figure number;

(c) wording of the proposed change; and

(d) rationale for the change.