ASTM F1970-23

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: F1970 − 23 An American National Standard
Standard Specification for
Special Engineered Fittings, Appurtenances or Valves for
use in Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl
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Chloride) (CPVC) Systems
This standard is issued under the fixed designation F1970; 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* 1.6 Check valves (including foot valves) covered by this
specification shall not be considered backflow prevention
1.1 This specification covers fittings, appurtenances and
devices and shall not be used for the protection of a potable
valves which are to be used with pipe and tubing complying
water supply. For definitions and requirements of backflow
with Specifications D1785, D2241, D2846/D2846M, F441/
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prevention devices, consult model plumbing codes and ASSE.
F441M or F442/F442M, or other piping as specified by the
fittings manufacturer. These products, such as unions, flanges 1.7 Due to the complex and installation-specific concerns
or valves, are not included in the scope of existing ASTM
surrounding chemical resistance and corrosion, this specifica-
specifications. This specification includes minimum require- tion does not address the compatibility of the products with all
ments for testing, materials, dimensions, workmanship,
possible end-use environments. Additional testing specific to
marking, and in-plant quality control. the end-use environment is recommended if the system is
conveying liquids other than potable water.
1.2 Fittings or appurtenances covered by this specification
are generally either molded, fabricated, or assembled from
1.8 The values stated in inch-pound units are to be regarded
molded or machined components. The materials used in
as standard. The values given in parentheses are mathematical
components include rigid thermoplastics, thermoplastic
conversions to SI units that are provided for information only
elastomers, elastomerics, and metals. The body or main portion
and are not considered standard.
of the fitting, appurtenance or valve is typically PVC, CPVC,
1.9 The following safety caveat applies only to the test
PE or PA (nylon). All products covered by this standard are
methods and in-plant quality control portions, section of this
intended to be used in PVC or CPVC plastic piping systems, or
specification: This standard does not purport to address all of
as a transition from these to metal systems.
the safety concerns, if any, associated with its use. It is the
1.3 The application of these products to gas service is responsibility of the user of this standard to establish appro-
beyond the scope of this specification. priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.4 The products covered by this specification are intended
1.10 This international standard was developed in accor-
for use with the distribution of pressurized liquids only, which
dance with internationally recognized principles on standard-
are chemically compatible with the piping materials. Due to
ization established in the Decision on Principles for the
inherent hazards associated with testing components and sys-
Development of International Standards, Guides and Recom-
tems with compressed air or other compressed gases some
mendations issued by the World Trade Organization Technical
manufacturers do not allow pneumatic testing of their products.
Barriers to Trade (TBT) Committee.
Consult with specific product/component manufacturers for
their specific testing procedures prior to pneumatic testing.
2. Referenced Documents
NOTE 1—Warning: Pressurized (compressed) air or other compressed
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2.1 ASTM Standards:
gases contain large amounts of stored energy which present serious safety
which present serious safety hazards should a system fail for any reason.
D1598 Test Method for Time-to-Failure of Plastic Pipe
Under Constant Internal Pressure
1.5 Fittings which rely on heat fusion welding for connec-
tion to the piping system are outside the scope of this
specification.
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American Society of Sanitary Engineering, 28901 Clemens Rd., Suite 100,
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This specification is under the jurisdiction of ASTM Committee F17 on Plastic Westlake, OH 44145.
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Piping Systems and is the direct responsibility of Subcommittee F17.10 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 15, 2023. Published March 2023. Originally con
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