ASTM F2600-06
(Specification)Standard Specification for Electrofusion Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11 Pipe and Tubing
Standard Specification for Electrofusion Type Polyamide-11 Fittings for Outside Diameter Controlled Polyamide-11 Pipe and Tubing
SCOPE
1.1 This specification covers polyamide-11 electrofusion fittings for use with outside diameter-controlled polyamide-11 pipe, covered by Specification D 2513. Requirements for materials, workmanship, and testing performance are included. Where applicable in this specification "pipe" shall mean "pipe" or "tubing."
1.2 The values stated in inch-pound and centigrade temperature units are to be regarded as standard. The values given in parentheses are for information only.
The following safety hazards caveat pertains only to the test method portion, Section , 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 and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: F 2600 – 06
Standard Specification for
Electrofusion Type Polyamide-11 Fittings for Outside
Diameter Controlled Polyamide-11 Pipe and Tubing
This standard is issued under the fixed designation F 2600; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 4066 Classification System for Nylon Injection and Ex-
trusion Materials (PA)
1.1 This specification covers polyamide-11 electrofusion
F 412 Terminology Relating to Plastic Piping Systems
fittings for use with outside diameter-controlled polyamide-11
F 905 Practice for Qualification of Polyethylene Saddle-
pipe, covered by Specification D 2513. Requirements for
Fused Joints
materials, workmanship, and testing performance are included.
Whereapplicableinthisspecification“pipe”shallmean“pipe”
3. Terminology
or “tubing.”
3.1 Definitions—Definitions are in accordance with Termi-
1.2 Thevaluesstatedininch-poundandcentigradetempera-
nology F 412, and abbreviations are in accordance with Ter-
ture units are to be regarded as standard. The values given in
minology D 1600, unless otherwise specified.
parentheses are for information only.
3.2 Definitions of Terms Specific to This Standard:
1.3 The following safety hazards caveat pertains only to the
3.2.1 electrofusion—a heat fusion joining process where the
test method portion, Section 9, of this specification: This
heat source is an integral part of the fitting, such that when
standard does not purport to address all of the safety concerns,
electric current is applied, heat is produced that melts and joins
if any, associated with its use. It is the responsibility of the user
the plastics.
of this standard to establish appropriate safety and health
3.2.2 fusion interface—surface in the heat fusion process
practices and determine the applicability of regulatory limita-
where the plastic materials of the products being joined bond
tions prior to use.
together.
2. Referenced Documents 3.2.3 fusion zone length—totallengthofthemeltedmaterial
in the fitting cross-section under evaluation.
2.1 ASTM Standards:
D 618 Practice for Conditioning Plastics for Testing
4. Materials and Manufacture
D 638 Test Method for Tensile Properties of Plastics
4.1 This specification covers fittings made from polyamide
D 1598 Test Method for Time-to-Failure of Plastic Pipe
11 (PA11) meeting the requirements for Group 3, Class 2, and
Under Constant Internal Pressure
Grade 3, (PA32312) as prescribed in Specification D 4066.
D 1599 Test Method for Resistance to Short-Time Hydrau-
4.2 Rework Material—Clean rework polyamide-11 material
lic Pressure of Plastic Pipe, Tubing, and Fittings
of the same resin, free of any wire or contaminants generated
D 1600 Terminology for Abbreviated Terms Relating to
from the fitting manufacturer’s own production, may be used
Plastics
by the same manufacturer, as long as the fittings produced
D 2122 Test Method for Determining Dimensions of Ther-
conform to the requirements of this specification.
moplastic Pipe and Fittings
4.3 Heating Mechanism—The heat mechanism shall be of
D 2513 Specification for Thermoplastic Gas Pressure Pipe,
materials not detrimental to the performance of the fitting or
Tubing, and Fittings
the pipe to which it is intended to be joined.
5. Performance Requirements
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
5.1 The following requirements are for electrofusion joints
Piping Systems and is the direct responsibility of Subcommittee F17.60 on Gas.
Current edition approved Sept. 1, 2006. Published September 2006.
that have been joined using the manufacturer’s recommended
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
joining procedures. These requirements must be met by each
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
electrofusion joint design, on each size and type of pipe
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. material for which the manufacturer recommends use of his
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2600–06
fitting. Any revisions to the electrofusion joint design or 6.3 The manufacturer shall furnish to the user the electrical
processing by the manufacturer after the initial testing requires resistance, critical dimensions, and tolerances of his fittings.
retesting to ensure these requirements can still be met. Fittings This information must include at least the following dimen-
intended for use in the distribution of natural gas or liquid sions and tolerances:
petroleumgasshallalsomeettherequirementsofSpecification 6.3.1 Coupling inside diameter,
D 2513. 6.3.2 Temperature joining limits, and
6.3.3 Operating pressure of the fitting.
5.1.1 It is not required that each configuration of a fitting be
tested to meet all of these qualifications (that is, 2 in. main
NOTE 2—There are other items that fall beyond the scope of this
saddle joint with multiple outlet configurations offered) as long
specification which would be of interest to the user for proper application
as the electrofusion joint design is not altered in the configu-
of the fittings and is recommended as additional information to be
ration differences. furnished. A few of these are: (1) maximum pipe out of round allowed at
joint area; (2) minimum/maximum pipe SDR capability of the fitting, and
NOTE 1—It is permissible when accomplishing these tests, to do so on
(3) for saddles intended for use on a live main, the maximum allowable
the highest and lowest dimension ratio of the same pipe material. If in
line pressure when making the joint.
those tests all performance requirements are met, all dimension ratios
between those tested may be considered as having met the requirements.
7. Workmanship, Finish andAppearance
These tests do not have to cover the full range of dimension ratios
7.1 The manufacture of these fittings shall be in accordance
available, only the dimension ratio range on which the manufacturer
with good commercial practice so as to produce fittings
recommends his fitting be used.
meeting the requirements of this specification.
5.2 Pressure Requirements:
7.2 The fittings shall be homogeneous throughout, except
5.2.1 Minimum Hydraulic Burst Pressure—The minimum
where a heating coil or electrical connectors are incorporated,
hydraulic burst pressure of the test specimen shall not be less
and free of cracks, holes, foreign inclusions, or injurious
than that required to produce 3900psi (26.9MPa) fiber stress in
defects such as gouges, dents, cuts, etc. The fittings shall be as
the pipe being used in the test when tested in accordance with
uniform as commercially practicable in opacity, density, and
9.1. The test equipment, procedures, and failures definitions
otherphysicalproperties.Anyheatingcoils,connectingcables,
shall be as specified in Test Method D 1599.
connectors, and related electrical power source shall be de-
5.2.2 Sustained Pressure—The fitting and fused joint shall
signed to prevent electrical shock to the user.
not fail when tested in accordance with 9.2.
5.3 Tensile Strength Requirements (Coupling Type Joints
8. Specimen Preparation
Only)—Thefittingorthepipetofittingjointmadeonpipeshall
8.1 Conditioning:
notfailwhentestedinaccordancewith9.3.Specimensshallbe
8.1.1 Unless otherwise specified, condition the specimens
subjected to a tensile stress that causes the pipe to yield or
(pipe and fittings) prior to joining at the minimum pipe
causes the pipe to break outside the joint area. Tensile tests
temperature allowable for fusion as recommended by the
must be made on specimens as joined, not on straps cut from
manufacturer, for not less than 16 h and make the fusion joint
the specimen. Yielding must be measured only in the pipe,
at that temperature for those tests where conditioning is
independent of the fitting or joint.
required.
5.4 Impact Resistance (Saddle Type Joints Only)—The joint
8.1.2 Unless otherwise specified, condition the specimens
madeonthespecimenshallnotfailwhenimpactedwithaforce
(pipe and fittings) prior to joining at the maximum pipe
sufficient to break the body or other portion of the specimen.
temperature allowable for fusion as recommended by the
Tests of 500 ft-lb or higher impact with no failures noted shall
manufacturer, for not less than 16 h and make the fusion joint
be considered as a “pass” impact test. The device for testing
at that temperature for those tests where conditioning is
and the methods shall be as defined in Practice F 905.
required.
5.5 Joint Integrity Tests—(Couplings and Saddle Type
8.2 Test Conditions—Conduct the tests at the Standard
Joints)—The joint made on the specimen shall meet the
Laboratory Temperature of 23 6 2°C (73.4 6 3.6°F) unless
requirementsin9.4and9.5ofthisspecification,whentestedin
otherwise specified.
accordance with 9.4.
8.3 Preparation of Specimens for Testing:
8.3.1 Prepare test specimens so that the minimum length of
6. Dimensions, Mass, and Permissible Variations
unreinforced pipe on one side of any fitting is equal to three
6.1 Dimension and tolerances of electrofusion fittings must times the diameter of the pipe, but in no case less than 12 in.
be such that heat fusion is possible to outside diameter (OD)
(304 mm). It is permissible to test multiple fittings together
controlled PA-11 pipes such as those listed in Specifications provided they are separated by a minimum distance equal to
D 2513, such that the joints will satisfy the performance
three times the diameter of the pipe, but in no case less than 12
requirements in Section 5. ( See Test Method D 2122.) in. (304 mm).
6.2 Becauseofthevaryingdesignsforelectrofusionfittings, 8.3.2 Fuse all fitting outlets with the appropriate size pipe in
the actual spread of dimensions may be quite different from accordance with the manufacturer’s recommended procedures.
manufacturer to manufacturer. A table of dimensions and 8.3.3 All saddle fusion joint specimens conditioned as in
tolerances encompassing these differences would be meaning- 8.1.2 and destined for quick burst testing as in 9.1 and
less and without value and, therefore, is omitted from this sustained pressure testing as in 9.2, are to be joined with the
specification. pipe at no less than maximum allowable operating pressure of
F2600–06
FIG. 1 Preparation of Coupling Specimen for Crush Test
the pipe system or fitting, whichever is lowest, when being 9.3.1 Select four fittings at random and prepare specimens
prepared for those tests. The pipe should be left under pressure in accordance with Section 8 with the exception that it is
for a time period not less than recommended by the manufac-
permissible, on pipe sizes above 4 in. (102 mm) IPS, if limits
turerforcoolinginthefieldpriortodisturbingthejoint.Saddle
of tensile machine will not allow 25 % elongation with pipe
joint specimens destined for mechanical/destructive type tests
specimens of three-pipe diameters, to test with free pipe
such as impact as in 5.4 or crush tests as in 9.4, or specimens
lengths of 20 in. (304-mm) minimum. From the four speci-
conditioned for cold temperature joining as in 8.1.1, may be
mens, condition two specimens each in accordance with 8.1.1
made on unpressured pipe specimens.
and 8.1.2.
9.3.2 TestthespecimensusingtheapparatusofTestMethod
9. Test Methods
D 638.Test at a pull rate of 0.20 in. (5.0 mm) per min, 625 %.
9.1 Minimum Hydraulic Burst Pressure Test:
9.3.3 Failure of the fitting or joint as defined in 5.3, shall
9.1.1 Select four fittings at random and prepare specimens
constitute specimen failure. Failure of any one of the four
in accordance with Section 8. From the four specimens,
specimens shall constitute failure of the test. Failure of one of
condition two specimens each in accordance with 8.1.1 and
the four specimens tested is cause for retest of four additional
8.1.2.
specimens, joined at the failed specimens joining temperature.
9.1.2 Test the specimens in accordance with Test Method
Failure of any of these four additional specimens constitutes a
D 1599.
failure of the test.
9.1.3 Failure of the fitting or joint shall constitute specimen
9.4 JointIntegrityTests—Illustrationsofjointcrushtestsfor
failure.
socket type joints and saddles are offered in 9.4.1 and 9.4.2 as
9.1.4 Failure of any one of the four specimens shall consti-
tute failure of the test. Failure of one of the four specimens test methods that are useful as an evaluation of bonding
tested is cause for retest of four additional specimens, joined at strength between the pipe and fitting. Alternately, the fusion
the failed specimens joining temperature. Failure of any of
evaluation test (FET) offered in 9.4.3 and 9.4.4 may be used in
these four additional specimens constitutes a failure of the test.
lieuofthecrushtest.Similartestevaluationsasspecifiedinthe
9.2 Sustained Pressure Test:
contract or purchase order and as agreed upon by the purchaser
9.2.1 Select four fittings at random and prepare specimens
and manufacturer are of equal value in performing such
in accordance with Section 8 of this specification. From the
evaluations and may be substituted with such agreement.
four specimens, condition two specimens each in accordance
9.4.1 Joint Crush Test:
with 8.1.1 and 8.1.2.
9.4.1.1 Select four fittings at random and prepare specimens
9.2.2 Test the specimens in accordance with Test Method
in accordance with Section 8. From the four specimens,
D 1598. All tests shall be conducted at 80 6 2°C. The
condition two specimens each in accordance with 8.1.1 and
assemblies are to be subjected to pipe fiber stresses of 1450 psi
8.1.2 (Note 3).
(10.0 MPa) for 170 h. Joint specimens shall not fail within
these time periods.Any failures within these time periods must
NOTE 3—It is permissible to utilize in joint integrity testing, specimens
be of the pipe, independent of the fitting or joint and must be
from the quick-burst tests conducted in 9.1 after visually determining that
of a“ brittle” type pipe failure, not “ductile.” If ductile pipe
neither the joint area nor the pipe segment to be crushed was a part of the
failures occur, reduce the pressure of the test and repeat until
failure mode in the quick-burst test.
170-h results or pipe brittle failures are achieved.
9.4.1.2 Slit socket joints longitudinally as illustrated in Fig.
9.2.3 Failure of the fitting or joint shall constitute specimen
1 as near the centerline of the pipe as practical. Pipe lengths
failure.
extend
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