ASTM D1785-21a

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:D1785 −21a An American National Standard
Standard Specification for
Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80,
1
and 120
This standard is issued under the fixed designation D1785; 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* standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user
1.1 This specification covers poly(vinyl chloride) (PVC)
of this standard to establish appropriate safety, health, and
pipemadeinSchedule40,80,and120sizesandpressure-rated
environmental practices and determine the applicability of
for water (see Appendix X1). Included are criteria for classi-
regulatory limitations prior to use.A specific precautionary
fying PVC plastic pipe materials and PVC plastic pipe, a
statement is given in Note 9.
systemofnomenclatureforPVCplasticpipe,andrequirements
and test methods for materials, workmanship, dimensions,
NOTE 3—CPVC plastic pipes, Schedules 40 and 80, which were
formerly included in this specification, are now covered by Specification
sustained pressure, burst pressure, flattening, and extrusion
F441/F441M.
quality. Methods of marking are also given.
NOTE 4—The sustained and burst pressure test requirements, and the
1.2 The products covered by this specification are intended
pressure ratings in the Appendix X1, are calculated from stress values
obtained from tests made on pipe 4 in. (100 mm) and smaller. However,
for use with the distribution of pressurized liquids only, which
tests conducted on pipe as large as 24 in. (600 mm) diameter have shown
are chemically compatible with the piping materials. Due to
these stress values to be valid for larger diameter PVC pipe.
inherent hazards associated with testing components and sys-
NOTE 5—PVC pipe made to this specification is often belled for use as
tems with compressed air or other compressed gases some
line pipe. For details of the solvent cement bell, see Specification D2672
manufacturersdonotallowpneumatictestingoftheirproducts. and for details of belled elastomeric joints, see Specifications D3139 and
D3212.
Consult with specific product/component manufacturers for
their specific testing procedures prior to pneumatic testing. 1.6 This international standard was developed in accor-
NOTE 1—Pressurized (compressed) air or other compressed gases
dance with internationally recognized principles on standard-
contain large amounts of stored energy which present serious saftey
ization established in the Decision on Principles for the
hazards should a system fail for any reason.
Development of International Standards, Guides and Recom-
NOTE 2—This standard specifies dimensional, performance and test
mendations issued by the World Trade Organization Technical
requirements for plumbing and fluid handling applications only. It does
not include provisions for the use of these products for venting of Barriers to Trade (TBT) Committee.
combustion gases. UL1738 is a standard that does include specific testing
and marking requirements for flue gas venting products, including PVC.
2. Referenced Documents
1.3 The text of this specification references notes, footnotes, 2
2.1 ASTM Standards:
and appendixes which provide explanatory material. These
D618 Practice for Conditioning Plastics for Testing
notesandfootnotes(excludingthoseintablesandfigures)shall
D1598 Test Method for Time-to-Failure of Plastic Pipe
not be considered as requirements of the specification.
Under Constant Internal Pressure
1.4 The values stated in inch-pound units are to be regarded D1599 Test Method for Resistance to Short-Time Hydraulic
as standard. The values given in parentheses are mathematical
Pressure of Plastic Pipe, Tubing, and Fittings
conversions to SI units that are provided for information only D1600 Terminology forAbbreviatedTerms Relating to Plas-
and are not considered standard.
tics
D1784 Classification System and Basis for Specification for
1.5 The following safety hazards caveat pertains only to the
Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
test methods portion, Section 8, of this specification: This
rinated Poly(Vinyl Chloride) (CPVC) Compounds
1
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
Piping Systems and is the direct responsibility of Subcommittee F17.25 on Vinyl
2
Based Pipe.
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