ASTM C1440-21

Standard Specification for Thermoplastic Elastomeric (TPE) Gasket Materials for Drain, Waste, and Vent (DWV), Sewer, Sanitary, and Storm Plumbing Systems

ABSTRACT
This specification covers thermoplastic elastomeric (TPE) gasket materials for preformed elastomeric gaskets used in shielded and non-shielded mechanical couplings for gravity flow drain, waste, and vent (DWV), sewer, sanitary, and storm plumbing systems. Couplings include those that join similar and dissimilar piping sizes and materials. Gaskets shall be made of virgin thermoplastic elastomeric compound containing only clean reworked thermoplastic elastomer material. Gasket materials shall conform to specified values of the following physical requirements: hardness, elongation, tensile strength, heat aging, tear strength, water absorption, ozone resistance, compression set, oil immersion in IRM 903 oil, and stretch test for spliced gaskets.
SCOPE
1.1 This specification covers thermoplastic elastomeric (TPE) gasket materials for preformed elastomeric gaskets used in shielded and non-shielded mechanical couplings. These couplings are used in gravity flow drain, waste, and vent (DWV), sewer, sanitary, and storm plumbing systems. They include couplings to join similar and dissimilar piping sizes and material.  
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.

General Information

• Status: Published
• Publication Date: 31-Aug-2021
• ICS: 21.140 - Seals, glands
• Technical Committee: A04 - Iron Castings
• Drafting Committee: A04.75 - Gaskets and Coupling for Plumbing and Sewer Piping

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:C1440 −21
Standard Specification for
Thermoplastic Elastomeric (TPE) Gasket Materials for Drain,
Waste, and Vent (DWV), Sewer, Sanitary, and Storm
1
Plumbing Systems
This standard is issued under the fixed designation C1440; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D573Test Method for Rubber—Deterioration in an Air
Oven
1.1 This specification covers thermoplastic elastomeric
D624Test Method for Tear Strength of Conventional Vul-
(TPE) gasket materials for preformed elastomeric gaskets used
canized Rubber and Thermoplastic Elastomers
in shielded and non-shielded mechanical couplings. These
D1149TestMethodsforRubberDeterioration—Crackingin
couplings are used in gravity flow drain, waste, and vent
an Ozone Controlled Environment
(DWV), sewer, sanitary, and storm plumbing systems. They
D1415Test Method for Rubber Property—International
include couplings to join similar and dissimilar piping sizes
Hardness
and material.
D2240Test Method for Rubber Property—Durometer Hard-
1.2 The values stated in inch-pound units are to be regarded
ness
as standard. The values given in parentheses are mathematical
3. Terminology
conversions to SI units that are provided for information only
and are not considered standard.
3.1 Definitions—Refer to Terminology A644 for definitions
1.3 This standard does not purport to address all of the of the following terms used in this specification: elastomer,
safety concerns, if any, associated with its use. It is the elastomeric, elongation, gasket, hardness, preformed gasket-
responsibility of the user of this standard to establish appro- (see gasket), thermoplastic elastomer.
priate safety, health, and environmental practices and deter-
4. Materials and Manufacture
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor- 4.1 Gaskets shall be made of virgin thermoplastic elasto-
meric compound, where the primary elastomer is a thermo-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the plastic vulcanizate containing only clean, reworked thermo-
Development of International Standards, Guides and Recom- plastic elastomer material from the manufacturer’s own
mendations issued by the World Trade Organization Technical production of the same compound.
Barriers to Trade (TBT) Committee.
4.2 Wheresplicesaremadeinthegasket,thestrengthofthe
splice shall be such that the gasket will withstand the stretch
2. Referenced Documents
test described in 8.9 with no visible separation or peeling.
2
2.1 ASTM Standards:
4.3 Many thermoplastic elastomeric materials (TPEs) are
A644Terminology Relating to Iron Castings
temperature sensitive. Designed operating temperature range
D395Test Methods for Rubber Property—Compression Set
forthe90ShoreATPEmaterialsis0to130°F(–18to55°C).
D412TestMethodsforVulcanizedRubberandThermoplas-
These materials are not designed or intended for prolonged
tic Elastomers—Tension
operation outside this range.
D471Test Method for Rubber Property—Effect of Liquids
5. Physical Properties
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
5.1 Gaskets representative of the manufacturer’s production
Castings and is the direct responsibility of Subcommittee A04.75 on Gaskets and
shall be selected as specified in Section 7 and shall conform to
Coupling for Plumbing and Sewer Piping.
the requirements for physical properties listed in Table 1 when
Current edition approved Sept. 1, 2021. Published September 2021. Originally
approved in 1999. Last previous edition approved in 2017 as C1440–17. DOI: tested in accordance with the methods specified in Section 8.
10.1520/C1440-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Workmanship, Finish, and Appearance
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.1 The surface of the gasket shall be smooth and free of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. pitting, cracks, blisters, air marks, and any other imperfections
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C1440−21
TABLE 1 Physical Requirements of Gasket Materials
be buffed prior to cutting into dumbbell specimens, so as t
...

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: C1440 − 17 C1440 − 21
Standard Specification for
Thermoplastic Elastomeric (TPE) Gasket Materials for Drain,
Waste, and Vent (DWV), Sewer, Sanitary, and Storm
1
Plumbing Systems
This standard is issued under the fixed designation C1440; 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.
1. Scope
1.1 This specification covers thermoplastic elastomeric (TPE) gasket materials for preformed elastomeric gaskets used in shielded
and non-shielded mechanical couplings. These couplings are used in gravity flow drain, waste, and vent (DWV), sewer, sanitary,
and storm plumbing systems. They include couplings to join similar and dissimilar piping sizes and material.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
A644 Terminology Relating to Iron Castings
D395 Test Methods for Rubber Property—Compression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D471 Test Method for Rubber Property—Effect of Liquids
D573 Test Method for Rubber—Deterioration in an Air Oven
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D1149 Test Methods for Rubber Deterioration—Cracking in an Ozone Controlled Environment
D1415 Test Method for Rubber Property—International Hardness
D2240 Test Method for Rubber Property—Durometer Hardness
D5964 Practice for Rubber IRM 901, IRM 902, and IRM 903 Replacement Oils for ASTM No. 1, ASTM No. 2, ASTM No. 3
Oils, and IRM 905 formerly ASTM No. 5 Oil
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron Castings and is the direct responsibility of Subcommittee A04.75 on Gaskets and Coupling
for Plumbing and Sewer Piping.
Current edition approved Nov. 15, 2017Sept. 1, 2021. Published November 2017September 2021. Originally approved in 1999. Last previous edition approved in
ɛ1
20132017 as C1440 – 08 (2013)C1440 – 17. . DOI: 10.1520/C1440-17.10.1520/C1440-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1440 − 21
3. Terminology
3.1 Definitions—Refer to Terminology A644 for definitions of the following terms used in this specification: elastomer,
elastomeric, elongation, gasket, hardness, preformed gasket-(see gasket), thermoplastic elastomer.
4. Materials and Manufacture
4.1 Gaskets shall be made of virgin thermoplastic elastomeric compound, where the primary elastomer is a thermoplastic
vulcanizate containing only clean, reworked thermoplastic elastomer material from the manufacturer’s own production of the same
compound.
4.2 Where splices are made in the gasket, the strength of the splice shall be such that the gasket will withstand the stretch test
described in 8.9 with no visible separation or peeling.
4.3 Many thermoplastic elastomeric materials (TPEs) are temperature sensitive. Designed operating temperature range for the 90
Shore A TPE materials is 0 to 130 °F (–18 to 55 °C). These materials are not designed or intended for prolonged operation outside
this range.
5. Physical Properties
5.1 Gaskets representative of the manufacturer’s production shall be selected as specified in Section 7 and shall conform to the
requir
...