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    • FLUID SYSTEMS AND COMPONENTS FOR GENERAL USE
    • Pipeline components and pipelines
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    • CSA/ANSI LC 1:19/CSA 6.26:19

    Codes & Standards - Subscribe

    CSA/ANSI LC 1:19/CSA 6.26:19

    Fuel gas piping systems using corrugated stainless steel tubing
    SKU: 2700744 Published by CSA Group Publication Year 2019

    Product Details

    • Preface/Scope
    • Items Included

    Preface


    This is the sixth edition of CSA/ANSI LC 1 • CSA 6.26, Fuel gas piping systems using corrugated stainless steel tubing. It supersedes the previous editions published in 2018, 2016, 2014, 2005, and 1997.


    The sixth edition of this Standard has been updated to reflect current industry practice, and address CSA Group’s guide on drafting Standards. Major changes to this edition include the following:


    a) Addition of requirement for CSST installers to be qualified to the manufacturer’s training program.


    b) Addition of requirement for each factory coil of CSST to bear a marking stating that the CSST must be installed by a manufacturer’s qualified installer.


    c) Administrative provisions for markings were modified.


    d) Addition of Annex B for installer training.


    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.


    This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard.


    Scope


    1.1

    This Standard applies to fuel gas piping systems using corrugated stainless steel tubing (CSST), intended for installation in residential, commercial, or industrial buildings, and including the following components as a minimum:


    a) corrugated stainless steel tubing (CSST);


    b) fittings for connection to the CSST; and


    c) striker plates (see Clause 3) to protect the installed CSST from puncture threats.


    Other components of piping systems covered by this Standard include gas manifolds, gas pressure regulators, manual gas valves, quick-disconnect devices, and gas convenience outlets (see Clauses 4.3, 4.4, and 4.5).


    Note: If such additional components are required to complete the piping system installation, they are either provided as part of the piping system or specified in the manufacturer’s installation instructions [see Clause 4.7 n)].


    1.2

    This Standard also applies to corrugated stainless steel piping systems in which portions of the piping are exposed to the outdoors, as required, to make connections to outdoor gas meters or to outdoor gas appliances, which are attached to, mounted on, or located in close proximity to the building structure.


    1.3

    This Standard does not apply to CSST, whether coated or uncoated, intended for direct burial underground. Tubing is installed underground only when encased inside either an approved conduit or as part of an approved engineered system and in accordance with local codes and the manufacturer’s instructions.


    1.4

    This Standard includes criteria to establish the suitability of concealed mechanical tube fittings for use with concealed gas piping (see Clause 3).


    1.5

    This Standard also applies to corrugated stainless steel piping systems that are used in conjunction with other approved fuel gas piping materials.


    1.6

    This Standard applies to piping systems rated at


    a) 5 psi (34.5 kPa) and intended for exposure to maximum actual operating pressures (see Clause 3) not exceeding 6.5 psi (44.8 kPa); or


    b) 25 psi (172.5 kPa) and intended for exposure to maximum actual operating pressures not exceeding 30 psi (207 kPa).


    Note: The manufacturer has the option to certify its system to either pressure rating.


    1.7

    This Standard applies to piping systems not exceeding a size of 2 in (50.8 mm), based on the nominal inside diameter of the tubing.


    1.8

    This Standard does not apply to gas connectors for appliances. These connectors are covered by ANSI Z21.24 • CSA 6.10 and ANSI Z21.69 • CSA 6.16.


    1.9

    This Standard does not apply to piping systems intended for use with propane in the liquid state.


    1.10

    All references to psi throughout this Standard are to be considered gauge pressure unless otherwise specified.


    1.11

    If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.


    Note: This Standard contains SI (metric) units corresponding to the yard/pound quantities, the purpose being to allow this Standard to be used in SI (metric) units. IEEE/ASTM SI 10, American National Standard for Metric Practice, or ISO 80000-1, Quantities and units — Part 1: General, is used as a guide in making metric conversion from yard/pound quantities. If a value for a measurement and a corresponding value in other units are both specified as a quoted marking requirement, the first stated unit, or both, are to be provided. Given corresponding values might be approximate.


    1.12

    In this Standard, shall Is used to express a requirement, i.e., a provision that the user shall 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 (non-mandatory) to define their application.

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    CSA/ANSI LC 1:19/CSA 6.26:19

    Fuel gas piping systems using corrugated stainless steel tubing

    Active
    English

    ANSI LC 1-2018/CSA 6.26-2018

    Fuel gas piping systems using corrugated stainless steel tubing

    Withdrawn
    English

    ANSI LC 1-2016/CSA 6.26-2016

    Fuel gas piping systems using corrugated stainless steel tubing

    Withdrawn
    English

    ANSI LC 1-2014/CSA 6.26-2014

    Fuel gas piping systems using corrugated stainless steel tubing

    Withdrawn
    English

    ANSI LC 1b-2011/CSA 6.26b-2011 (R2011)

    Addenda 2 to ANSI LC 1-2005/CSA 6.26-2005, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English

    ANSI LC 1a-2009/CSA 6.26a-2009 (R2011)

    Addenda 1 to ANSI LC 1-2005/CSA 6.26-2005, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English

    ANSI LC 1-2005/CSA 6.26-2005 (R2011)

    Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English

    ANSI/IAS LC 1b-2001/CSA 6.26b-2001

    Addenda 2 to ANSI/IAS LC 1-1997/CSA 6.26-M97, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English

    ANSI/IAS LC 1a-1999/CSA 6.26a-M99

    Addenda 1 to ANSI/IAS LC 1-1997/CSA 6.26-M97, Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English

    ANSI/IAS LC 1-1997/CSA 6.26-M97 (R2001)

    Fuel Gas Piping Systems Using Corrugated Stainless Steel Tubing (CSST)

    Withdrawn
    English
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