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ASTM F493-22

(Specification)

Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings

Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings

ABSTRACT
This specification covers requirements for solvent cements for chlorinated poly(vinyl chloride) (CPVC) plastic pipe, tubing, and socket-type fittings. Solvent cement shall be a CPVC resin-based solution, shall be free-flowing, shall show no gelation or stratification, and shall not contain lumps or any foreign matter. Other requirements include resin content, dissolution, viscosity, shelf stability, hydrostatic burst strength, and hydrostatic sustained pressure strength. Test procedures for solid contents, inert filler determination, viscosity, hydrostatic burst strength, and hydrostatic sustained pressure strength are included in this specification.
SCOPE
1.1 This specification provides requirements for chlorinated poly(vinyl chloride) (CPVC) solvent cements to be used in joining chlorinated poly(vinyl chloride) pipe, tubing, and socket-type fittings.  
1.2 CPVC solvent cements are used with CPVC 41 chlorinated poly(vinyl chloride) pipe, tubing, and fittings, which meet Class 23447 as defined in Specification D1784.  
1.3 A recommended procedure for joining CPVC pipe and fittings is given in Appendix X1. See also Practices F3328 and D2855.  
1.4 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Sep-2022
ICS
23.040.80 - Seals for pipe and hose assemblies
Technical Committee
F17 - Plastic Piping Systems
Drafting Committee
F17.20 - Joining
Current Stage
Ref Project

Relations

Refers
ASTM D1784-20 - Standard Classification System and Basis for Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds
Effective Date
15-Jan-2020
Refers
ASTM F412-20 - Standard Terminology Relating to Plastic Piping Systems
Effective Date
01-Apr-2020
Refers
ASTM D2855-20 - Standard Practice for the Two-Step (Primer and Solvent Cement) Method of Joining Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and Piping Components with Tapered Sockets
Effective Date
01-Aug-2020

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ASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and FittingsASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings
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ASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings
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REDLINE ASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and FittingsREDLINE ASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings
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Technical specification
REDLINE ASTM F493-22 - Standard Specification for Solvent Cements for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe and Fittings
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Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F493 −22 An American National Standard
Standard Specification for
Solvent Cements for Chlorinated Poly(Vinyl Chloride)
1
(CPVC) Plastic Pipe and Fittings
ThisstandardisissuedunderthefixeddesignationF493;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This specification provides requirements for chlorinated
2.1 ASTM Standards:
poly(vinyl chloride) (CPVC) solvent cements to be used in
D1084Test Methods for Viscosity of Adhesives
joining chlorinated poly(vinyl chloride) pipe, tubing, and
D1598Test Method for Time-to-Failure of Plastic Pipe
socket-type fittings.
Under Constant Internal Pressure
D1599Test Method for Resistance to Short-Time Hydraulic
1.2 CPVC solvent cements are used with CPVC 41 chlori-
Pressure of Plastic Pipe, Tubing, and Fittings
nated poly(vinyl chloride) pipe, tubing, and fittings, which
D1784Classification System and Basis for Specification for
meet Class 23447 as defined in Specification D1784.
Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
1.3 A recommended procedure for joining CPVC pipe and
rinated Poly(Vinyl Chloride) (CPVC) Compounds
fittings is given in Appendix X1. See also Practices F3328 and
D2846/D2846MSpecification for Chlorinated Poly(Vinyl
D2855.
Chloride) (CPVC) Plastic Hot- and Cold-Water Distribu-
1.4 Thetextofthisspecificationreferencesnotes,footnotes,
tion Systems
and appendixes which provide explanatory material. These
D2855Practice for the Two-Step (Primer and Solvent Ce-
notesandfootnotes(excludingthoseintablesandfigures)shall
ment) Method of Joining Poly (Vinyl Chloride) (PVC) or
not be considered as requirements of the specification.
Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and
Piping Components with Tapered Sockets
1.5 The values stated in inch-pound units are to be regarded
F402 Practice for Safe Handling of Solvent Cements,
as standard. The values given in parentheses are mathematical
Primers, and Cleaners Used for Joining Thermoplastic
conversions to SI units that are provided for information only
Pipe and Fittings
and are not considered standard.
F412Terminology Relating to Plastic Piping Systems
1.6 The following safety hazards caveat pertains only to the
F439Specification for Chlorinated Poly (Vinyl Chloride)
test methods portion, Section 6, of this specification: This
(CPVC) Plastic Pipe Fittings, Schedule 80
standard does not purport to address all of the safety concerns,
F3328Practice for the One-Step (Solvent Cement Only)
if any, associated with its use. It is the responsibility of the user
Method of Joining Poly (Vinyl Chloride) (PVC) or Chlo-
of this standard to establish appropriate safety, health, and
rinated Poly (Vinyl Chloride) (CPVC) Pipe and Piping
environmental practices and determine the applicability of
Components with Tapered Sockets
regulatory limitations prior to use.
1.7 This international standard was developed in accor-
2.2 NSF Standards:
dance with internationally recognized principles on standard-
Standard No. 14for Plastic Piping Components and Related
3
ization established in the Decision on Principles for the
Materials
Development of International Standards, Guides and Recom-
StandardNo.61forDrinkingWaterSystemsComponents—
3
mendations issued by the World Trade Organization Technical
Health Effects
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Piping Systems and is the direct responsibility of Subcommittee F17.20 on Joining. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2022. Published October 2022. Originally the ASTM website.
3
approved in 1977. Last previous edition approved in 2020 as F493–20. DOI: Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd.,Ann
10.1520/F0493-22. Arbor, MI 48113-0140, http://www.nsf.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F493−22
TABLE 1 Minimum Hydrostatic Burst Strength Requirements for
3. Terminology
Nominal 2 in. CPVC Solvent-Cemented Join
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F493 − 20 F493 − 22 An American National Standard
Standard Specification for
Solvent Cements for Chlorinated Poly(Vinyl Chloride)
1
(CPVC) Plastic Pipe and Fittings
This standard is issued under the fixed designation F493; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification provides requirements for chlorinated poly(vinyl chloride) (CPVC) solvent cements to be used in joining
chlorinated poly(vinyl chloride) pipe, tubing, and socket-type fittings.
1.2 CPVC solvent cements are used with CPVC 41 chlorinated poly(vinyl chloride) pipe, tubing, and fittings, which meet Class
23447 as defined in Specification D1784.
1.3 A recommended procedure for joining CPVC pipe and fittings is given in Appendix X1. See also PracticePractices F3328 and
D2855.
1.4 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and
footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 6, of this specification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory
limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1084 Test Methods for Viscosity of Adhesives
D1598 Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
D1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
1
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.
Current edition approved Aug. 1, 2020Oct. 1, 2022. Published August 2020October 2022. Originally approved in 1977. Last previous edition approved in 20142020 as
F493 – 14.F493 – 20. DOI: 10.1520/F0493-20.10.1520/F0493-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F493 − 22
D1784 Classification System and Basis for Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated
Poly(Vinyl Chloride) (CPVC) Compounds
D2846/D2846M Specification for Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Hot- and Cold-Water Distribution Systems
D2855 Practice for the Two-Step (Primer and Solvent Cement) Method of Joining Poly (Vinyl Chloride) (PVC) or Chlorinated
Poly (Vinyl Chloride) (CPVC) Pipe and Piping Components with Tapered Sockets
F402 Practice for Safe Handling of Solvent Cements, Primers, and Cleaners Used for Joining Thermoplastic Pipe and Fittings
F412 Terminology Relating to Plastic Piping Systems
F439 Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
F3328 Practice for the One-Step (Solvent Cement Only) Method of Joining Poly (Vinyl Chloride) (PVC) or Chlorinated Poly
(Vinyl Chloride) (CPVC) Pipe and Piping Components with Tapered Sockets
2.2 NSF Standards:
3
Standard No. 14 for Plastic Piping Components and Related Materials
3
Standard No. 61 for Drinking Water Systems
...

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ASTM F3535-21(Practice)
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SIGNIFICANCE AND USE
5.1 If required by the authority having jurisdiction, pressurized gaseous testing media leak testing is conducted after installation to discover and correct or repair leaks or faults in a newly constructed or modified PA12 pressure piping system before placing the system in service. Leakage or faults most commonly occur at connections, joints, and mechanical seals where sealing under pressure is required.  
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SCOPE
1.1 This practice provides information on apparatus, safety, pre-test preparation, and procedures for conducting field tests of polyamide-12 (PA12) pressure piping systems after installation using gaseous testing media such as un-odorized inert non-toxic gas or air, and applying pressure to determine if leaks exist in the system (pneumatic leak testing). This practice applies only to testing to discover leakage. Testing for other purposes such as testing to establish operating pressure is beyond the scope of this practice.  
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1.3 Where hydrostatic testing is specified in contract documents or by the authority having jurisdiction, testing using pressurized gaseous testing media (pneumatic) testing shall not be substituted without the express consent and authorization of the authority having jurisdiction.  
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Note 1: Components that are not suitable for testing with gaseous testing media may not be suitable for service with pressurized gas.  
1.5 This practice does not address leak testing using pressurized liquids (hydrostatic testing). For field leak testing using pressurized liquids, consult the manufacturer for guidance.  
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Standard Specification for PVC Hub and Elastomeric Seal (Gasket) Tee Connection for Joining Plastic Pipe to Insitu Pipelines and Manholes

ABSTRACT
This specification covers the minimum performance and material requirements for a three piece tee connector for connection between plastic pipe and insitu pipes, manholes and wastewater structures in sanitary and storm sewer applications. The three piece seal system consists of a 4 through 30-in. PVC (polyvinyl chloride) hub pipe, an elastomeric seal (gasket) and a mechanical band. The system is installed in either a bored or cast hole opening in the host pipe or structure to a specific dimension that corresponds to the combined diameter of the PVC pipe outside diameter/tolerance and the elastomeric seal thickness. These tee connectors are designed to provide a non-pressure (gravity flow) watertight connection between the incoming pipe and an insitu pipe or manhole/structure to the limits defined in this standard. This specification deals with materials and manufacture, principles of design, basis of acceptance, test methods and requirements, rejection and rehearing, certification, markings, quality assurance, and packaging and package marking.
SCOPE
1.1 This specification covers the minimum performance and material requirements for a three piece tee connector for connection between plastic pipe and insitu pipes, manholes and wastewater structures in sanitary and storm sewer applications.  
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FIG. 1 Three-Piece Sealing System (Connector)  
1.2 These tee connectors are designed to provide a non-pressure (gravity flow) watertight connection between the incoming pipe and an insitu pipe or manhole/structure to the limits defined in this standard.
Note 1: Connections covered by this specification are adequate for laboratory hydrostatic pressures up to 13 psi (30 ft of head) without leakage when tested in accordance with the provisions of this standard. Infiltration or exfiltration quantities for an installed system are dependent upon many factors other than the connections between incoming pipe and the insitu pipe or manhole structure, and allowable quantities may need to be covered by other specifications and suitable testing of the installed pipeline and system. Where connections are made to concrete manhole sections refer to Specification C923.
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SCOPE
1.1 This specification covers elastomeric seals (gaskets) used to seal the joints of plastic pipe used for gravity, low-pressure, and high-pressure applications. This refers to push-on joints which require no internal or external pressure to effect the initial seal.  
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SCOPE
1.1 This specification covers thermoplastic elastomeric seals (gaskets) used to seal the joints of plastic pipe and fittings used for gravity and low-pressure applications.2 This specification refers to push-on joints that require no internal or external pressure to effect the initial seal.  
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SCOPE
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5.1 The values recorded are applicable only to the sewer joint being tested and at the time of testing.
SCOPE
1.1 This practice covers procedures for testing single joints of thermoplastic pipe for gravity flow (non-pressure) sewer lines, when using either air or water under low pressure to demonstrate the integrity of the joint. This practice is used for testing 27 in. (675 mm) and larger inside diameter PVC (Polyvinyl Chloride), HDPE (High Density Polyethylene) and PP (Polypropylene) sewer lines utilizing flexible gasketed joints with elastomeric seals, Specification F477.  
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SCOPE
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Note 1: Industrial waste lines should be installed only with the specific approval of the governing code authority when using chemicals not commonly found in drains and sewers or temperatures in excess of 140 °F (60 °C), or both.  
1.3 Fittings produced to this specification are intended to be installed with pipe, in accordance with Practice D2321.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 The following precautionary caveat pertains to the test method portion only, Section 10, of this specification.  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM C1681-23(Test Method)
Standard Test Method for Evaluating the Tear Resistance of a Sealant Under Constant Strain

SIGNIFICANCE AND USE
5.1 This test method is intended to determine if a joint that is subjected to a mechanically induced cut will resist tear propagation during normal joint movement.
Note 1: A sealant with a high resistance to tear propagation may perform better than a sealant with a low resistance to tear propagation.
SCOPE
1.1 This test method evaluates the impact of an induced tear on a sealant specimen that is dimensioned, cured according to the guidelines in Test Method C719 and then subjected to a constant strain. It is effective in differentiating between sealants that are used in dynamic joints subject to abrasion, punctures, tears, or combination thereof.  
1.2 Since this test method is for the evaluation of tear propagation, an adhesive failure to the substrates provides no usable data regarding tear propagation. This would be considered a failed test and that data would be discarded, or at least separated from the other data from specimens that did not experience an adhesive failure.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This standard is similar in concept to European Technical Approval Guidelines (ETAG) 002, Part 1, Section 5.1.4.6.4—Resistance To Tearing.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM F3535-21(Practice)
Standard Practice for Field Leak Testing of Polyamide-12 (PA12) Pressure Piping Systems Using Gaseous Testing Media Under Pressure (Pneumatic Leak Testing)

SIGNIFICANCE AND USE
5.1 If required by the authority having jurisdiction, pressurized gaseous testing media leak testing is conducted after installation to discover and correct or repair leaks or faults in a newly constructed or modified PA12 pressure piping system before placing the system in service. Leakage or faults most commonly occur at connections, joints, and mechanical seals where sealing under pressure is required.  
5.2 Safety is of paramount importance when conducting pressurized gaseous testing media leak tests because testing results include no leaks, leaks, sudden violent rupture, or catastrophic failure.  
5.3 Systems that contain lower pressure rated or non-pressure rated components that cannot be isolated or removed from exposure to test pressure, or where temporary caps or closures are not practical, are not suitable for testing in accordance with this practice.  
5.4 Leakage Allowance—Leakage is not allowed for butt and electrofusion joints, and restrained gas-tight mechanical joints. See 7.6. Contact the joint, connection or component manufacturer for leakage correction information if leakage occurs at a joint, connection or component having a mechanical seal.  
5.5 Poisson-Effect Expansion and Contraction—When test pressure is applied to plastic piping systems that have fully restrained joints such as heat fusion, electrofusion, bolted flanges, etc., either reduction of overall pipe length or an increase in longitudinal stress results from diametrical expansion of the pipe. Disjoining (pull-out) of partially restrained or non-restrained connections or joints, such as some in-line mechanical connectors having insufficient resistance to pull-out stress or length reduction, is possible when partially restrained or unrestrained joints are in-line with the fully restrained test section. To prevent Poisson-effect disjoining of partially restrained or non-restrained joints take measures such as installing external joint restraints (diametrical clamps and tie-rods) on...
SCOPE
1.1 This practice provides information on apparatus, safety, pre-test preparation, and procedures for conducting field tests of polyamide-12 (PA12) pressure piping systems after installation using gaseous testing media such as un-odorized inert non-toxic gas or air, and applying pressure to determine if leaks exist in the system (pneumatic leak testing). This practice applies only to testing to discover leakage. Testing for other purposes such as testing to establish operating pressure is beyond the scope of this practice.  
1.2 Leak testing with pressurized gaseous testing media shall be used only if one or both of the following conditions exists:  
1.2.1 The piping system is so designed that it cannot be filled with a liquid, or  
1.2.2 The piping system service cannot tolerate traces of liquid testing media.  
1.3 Where hydrostatic testing is specified in contract documents or by the authority having jurisdiction, testing using pressurized gaseous testing media (pneumatic) testing shall not be substituted without the express consent and authorization of the authority having jurisdiction.  
1.4 Some manufacturers prohibit or restrict testing of their products with pressurized gaseous testing media. Contact component manufacturers for information. Where the manufacturer of a test section component prohibits or restricts testing with pressurized gaseous testing media testing in accordance with this practice shall not be used without the express consent and authorization of the authority having jurisdiction and the component manufacturer.
Note 1: Components that are not suitable for testing with gaseous testing media may not be suitable for service with pressurized gas.  
1.5 This practice does not address leak testing using pressurized liquids (hydrostatic testing). For field leak testing using pressurized liquids, consult the manufacturer for guidance.  
1.6 This practice does not apply to leak testing of non-p...

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ASTM
ASTM C1563-08(2021)(Test Method)
Standard Test Method for Gaskets for Use in Connection with Hub and Spigot Cast Iron Soil Pipe and Fittings for Sanitary Drain, Waste, Vent, and Storm Piping Applications

ABSTRACT
This test method covers the standard material criteria and test method for compression gaskets used in joining hub and spigot cast iron soil pipe and fittings for sanitary drain, waste, vent, and storm piping applications. The gaskets shall be made of a compound containing a thermoset elastomer and shall consist of one or more sealing ring(s) that compress to provide an airtight and watertight seal. Compression gaskets shall have an integral flange to prevent the gasket from rolling into the hub during installation and shall be designed to permit expansion, contraction, and deflection of assembled piping. The gaskets shall be restrained and subjected to hydrostatic pressure and the joint assembly performance shall be evaluated using the restrained hydrostatic joint testing apparatus wherein a water pressure gauge is used to ensure the accuracy of the test pressures.
SCOPE
1.1 Several different types of compression gaskets are available for use in connection with hub and spigot cast iron soil pipe and fittings. The purpose of this test method is to establish material criteria and test procedures for compression gaskets used in joining hub and spigot cast iron soil pipe and fittings for sanitary drain, waste, vent, and storm drain piping applications in accordance with the general needs of producers, distributors, and users.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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