ASTM F3124-15

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Designation: F3124 − 15
StandardPractice for
Produce Heat Butt Fusion Joints in Plastic Piping Systems
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or Fittings
This standard is issued under the fixed designation F3124; 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 microprocessor, internal memory for data storage, and connec-
tions for pressure sensors to the hydraulic fusion machine.
1.1 This practice specifies the data recording information
Devices may interface with a personal computer and may
that is recorded, when data recording equipment is used, on
utilize software to activate the Device and to view and analyze
butt fusion joints in a plastic piping system in order to compare
the collected data. Other Devices may have a local interface
the procedure used in making the joint to the heat butt fusion
device, such as a keypad or touch sensing, LCD display, and
joining procedure specified. This practice is suitable for use
can be used as a standalone device.
with all heat butt fusion joining procedures that require
measurable time and pressure profiles, such as Practice F2620,
4. Summary of Practice
Specification F2785, Specification F2945 international stan-
4.1 The principle of heat butt fusion of plastic pipe is to
dards or other qualified procedures. This practice applies to
apply heat, at a designated temperature, to two prepared pipe
hydraulically operated heat butt fusion machines only and does
ends for a heat soak period and then fuse them together by the
not apply to manually operated fusion machines or specialized
application of a sufficient force, thereby resulting in fusion.
fabrication equipment for fittings in a controlled environment
This practice identifies the information that is collected by the
with proprietary procedures and processes.
data recording device about the heat butt fusion joint. The
1.2 This standard does not purport to address all of the
Device records the hydraulic pressures and times during the
safety concerns, if any, associated with its use. It is the
butt fusion process for individual joints and manual entries
responsibility of the user of this standard to establish appro-
such as operator identification, product information, fusion
priate safety and health practices and determine the applica-
parameters, and heater surface temperature.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
5.1 The Device record includes information about how the
2.1 ASTM Standards:
heat butt fusion joint was made (heater temperature, pressures
F2620 Practice for Heat Fusion Joining of Polyethylene Pipe
and times for the heating, fusion and cooling steps) and other
and Fittings
important information about the process, job, equipment used,
F2785 Specification for Polyamide 12 Gas Pressure Pipe,
etc. The Device record is compared to the specified heat butt
Tubing, and Fittings
fusion procedure parameters to determine if the procedure was
F2945 Specification for Polyamide 11 Gas Pressure Pipe,
followed correctly. For comparison purposes, a graph of time
Tubing, and Fittings
versus pressure is generated from the data record to show
pressure changes that occur during the butt fusion process.
3. Terminology
Comparing the time versus pressure graph to the steps in the
3.1 Definitions:
procedure helps determine that the procedure parameters were
3.1.1 Data Recording Device (“Device”)—This is an instru-
observed. (See Appendix X1.) These records may be down-
ment that obtains and stores information.
loaded from the device and stored.
3.1.1.1 Discussion—This is generally an electronic device
that accepts sensor input for pressure and time and manual 6. Apparatus—General Requirements
input for other information. These Devices are typically small,
6.1 Data Recording Device:
battery powered, portable, and equipped with a
6.1.1 The Device shall be capable of collecting the follow-
ing information:
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 the heater temperature at the beginning of the heat cycle and the pressures
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
applied during the heating, fusing and cooling cycle
Piping Systems and is the direct responsibility of Subcommittee F17.20 on Joining.
 time for each stage of the process from the beginning of the heat cycle
Current edition approved March 1, 2015. Published March 2015. DOI: 10.1520/
through the end of the cool cycle
F3124–15
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F3124 − 15
7. Procedure
 the operators name or identi
...