ASTM F1365-91(2023)

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: F1365 − 91 (Reapproved 2023)
Standard Test Method for
Water Infiltration Resistance of Plastic Underground
Conduit Joints Which Use Flexible Elastomeric Seals
This standard is issued under the fixed designation F1365; 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 2.3 National Electrical Manufacturers Association (NEMA)
Standards:
1.1 This test method covers the determination of the water
TC-2 Electrical Plastic Tubing (EPT) and Conduit (EPC-40
infiltration resistance of gasketed plastic underground conduit
and EPC-80)
joints using a pressurized water bladder apparatus.
TC-6 PVC and ABS Plastic Utilities Duct for Underground
1.2 The values stated in inch-pound units are to be regarded
Installation
as standard. The values given in parentheses are mathematical
TC-8 Extra-Strength PVC Plastic Utilities Duct for Under-
conversions to SI units that are provided for information only
ground Installation
and are not considered standard.
3. Significance and Use
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 Underground electrical and communication conduit
responsibility of the user of this standard to establish appro-
should be impervious to groundwater in order to prevent
priate safety, health, and environmental practices and deter-
damage to conductors and utility vaults. The bladder test
mine the applicability of regulatory limitations prior to use.
described in this test method may be used to qualify potential
1.4 This international standard was developed in accor-
gasketed conduit systems by indicating whether the joint
dance with internationally recognized principles on standard-
system will prevent water infiltration.
ization established in the Decision on Principles for the
3.2 This test method can be used to qualify joints for plastic
Development of International Standards, Guides and Recom-
underground conduits using flexible elastomeric seals.
mendations issued by the World Trade Organization Technical
However, it should not be assumed that a joint system that
Barriers to Trade (TBT) Committee.
passes this test method will be able to seal under cases of
misinstallation or abuse, or both.
2. Referenced Documents
3.3 This test method covers all of the following gasketed
2.1 ASTM Standards:
conduit types: encased burial (EB) excluding EB20, direct
D618 Practice for Conditioning Plastics for Testing
burial (DB), telecommunications, cable television, and Sched-
D2122 Test Method for Determining Dimensions of Ther-
ule 40 conduit and Schedule 80 conduit. Trade sizes covered
moplastic Pipe and Fittings
are 2-in. nominal size and larger. (See UL 651; NEMA TC-2,
F512 Specification for Smooth-Wall Poly(Vinyl Chloride)
TC-6, and TC 8; and Specification F512.)
(PVC) Conduit and Fittings for Underground Installation
3.4 This test method also covers fittings that are intended for
2.2 Underwriter’s Laboratories (UL) Standard:
use with the conduit types described in 3.3 and which use
UL 651 Schedule 40 and 80 Rigid PVC Conduit
flexible elastomeric seals.
4. Apparatus
This test method is under the jurisdiction of ASTM Committee F17 on Plastic
4.1 General—One type of bladder joint tester is shown in
Piping Systems and is the direct responsibility of Subcommittee F17.40 on Test
Fig. 1.
Methods.
Current edition approved April 15, 2023. Published April 2023. Originally
4.2 Bladder:
approved in 1991. Last previous edition approved in 2018 as F1365 –91(2018) DOI:
4.2.1 The bladder shall be similar to that shown in Fig. 1.
10.1520/F1365-91R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The bladder shall be comprised of a reinforced elastomeric
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.
3 4
Available from Underwriters Laboratories (UL), UL Headquarters, 333 Pfing- Available from National Electrical Manufacturers Association (NEMA), 1300
sten Road, Northbrook, IL, 60062, http://www.ul.com. N. 17th St., Suite 900, Arlington, VA 22209, http://www.nema.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1365 − 91 (2023)
shall be representative of normal and customary production by
the manufacturer. (See Test Method D2122.)
5.3 Three specimens shall be tested for each size of gas-
keted conduit.
6. Conditioning
6.1 Condition specimens for at least 2 h in air at a
temperature of 73.4 °F 6 3.6 °F (23 °C 6 2 °C) and conduct
the test in a room maintained at the same temperature. (See
Practice D618.)
7. Procedure
7.1 Select and condition three sets of gasketed bells and
spigots of the same nominal size according to Sections 5 and 6
of this test method.
7.2 Mark the specimens with consecutive numbers, starting
with “1” and ending with “3.”
7.3 Select a bell/spigot pair and apply a joint lubricant
recommended by the conduit manufacturer to both the bell and
spigot according to the lubricant manufacturer’s directions.
7.4 Insert the spigot into the bell until the insertion line on
FIG. 1 Bladder Test Apparatus
the spigot is flush with the
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