ASTM F771-99
(Specification)Standard Specification for Polyethylene (PE) Thermoplastic High-Pressure Irrigation Pipeline Systems
Standard Specification for Polyethylene (PE) Thermoplastic High-Pressure Irrigation Pipeline Systems
SCOPE
1.1 This specification covers polyethylene (PE) thermoplastic pipelines used to convey, at rated pressures of 80 to 200 psi, water that is to be used for irrigation purposes. This specification includes criteria for classifying the pipe materials, a system of nomenclature for plastic pipe, requirements for pipe, test methods, joints, fittings, certification, and marking.
1.2 The values stated in inch-pound units are to be regarded as the standard.
1.3 The following safety hazards caveat pertains only to the test method portion, Section 7, 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 771 – 99 An American National Standard
Standard Specification for
Polyethylene (PE) Thermoplastic High-Pressure Irrigation
Pipeline Systems
This standard is issued under the fixed designation F 771; 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 2683 Specification for Socket-Type Polyethylene Fittings
for Outside Diameter-Controlled Polyethylene Pipe and
1.1 This specification covers polyethylene (PE) thermoplas-
Tubing
tic pipelines used to convey, at rated pressures of 80 to 200 psi,
D 2837 Test Method for Obtaining Hydrostatic Design
water that is to be used for irrigation purposes. This specifica-
Basis for Thermoplastic Pipe Materials
tion includes criteria for classifying the pipe materials, a
D 3035 Specification for Polyethylene (PE) Plastic Pipe
system of nomenclature for plastic pipe, requirements for pipe,
(DR-PR) Based on Controlled Outside Diameter
test methods, joints, fittings, certification, and marking.
D 3261 Specification for Butt Heat Fusion Polyethylene
1.2 The values stated in inch-pound units are to be regarded
(PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and
as the standard.
Tubing
1.3 The following safety hazards caveat pertains only to the
D 3350 Specification for Polyethylene Plastics Pipe and
test method portion, Section 7, of this specification: This
Fittings Materials
standard does not purport to address all of the safety concerns,
F 412 Terminology Relating to Plastic Piping Systems
if any, associated with its use. It is the responsibility of the user
2.2 Federal Standard:
of this standard to establish appropriate safety and health
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
practices and determine the applicability of regulatory limita-
2.3 Military Standard:
tions prior to use.
MIL-STD-129 Marking for Shipment and Storage
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 Definitions:
D 1238 Test Method for Flow Rates of Thermoplastics by
3.1.1 General—Nomenclature is in accordance with Termi-
Extrusion Plastomer
nology F 412 and abbreviations are in accordance with Termi-
D 1248 Specification for Polyethylene Plastics Extrusion
nology D 1600, unless otherwise indicated.
Materials for Wire and Cable
3.1.2 high-pressure irrigation pipeline—this term applies to
D 1505 Test Method for Density of Plastics by the Density-
underground pipelines constructed of PE pipe from 0.5 to 6 in.
Gradient Technique
nominal diameter and subject to pressures, including surge
D 1598 Test Method for Time-to-Failure of Plastic Pipe
pressures, from 80 to 200 psi (550 to 1380 kPa).
Under Constant Internal Pressure
3.1.3 hydrostatic design stress—the recommended maxi-
D 1599 Test Method for Short-Time Hydraulic Failure Pres-
mum hoop stress that can be applied continuously with a high
sure of Plastic Pipe, Tubing, and Fittings
degree of certainty that failure of the pipe will not occur.
D 1600 Terminology for Abbreviated Terms Relating to
3.1.4 pressure rating (PR)—the estimated maximum pres-
Plastic
sure that the medium in the pipe can exert continuously with a
D 2122 Test Method for Determining Dimensions of Ther-
high degree of certainty that failure of the pipe will not occur.
moplastic Pipe and Fittings
3.1.5 relation between standard dimension ratio, hydro-
D 2239 Specification for Polyethylene (PE) Plastic Pipe
static design stress and pressure rating—the following expres-
(SIDR-PR) Based on Control Inside Diameter
sion, commonly known as the ISO equation, is used to relate
D 2609 Specification for Plastic Insert Fittings for Polyeth-
standard dimension ratio, hydrostatic design stress, and pres-
ylene (PE) Plastic Pipe
sure rating:
For outside diameter-controlled pipe:
This specification is under the jurisdiction of ASTM Committee F-17 on Plastic
2S/P 5 SDR 2 1or2S/P 5 D /t 2 1 (1)
~ !
Piping Systems and is the direct responsibility of Subcommittee F 17.61on Water.
Current edition approved April 10, 1999. Published July 1999. Originally
published as F 771 – 82. Last previous edition F 771 – 95.
2 5
Annual Book of ASTM Standards, Vol 08.01. Annual Book of ASTM Standards, Vol 08.03.
3 6
Annual Book of ASTM Standards, Vol 08.03. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Annual Book of ASTM Standards, Vol 08.04. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 771
For inside diameter-controlled pipe: PE pipe made from PE plastics as defined by two hydrostatic
design stresses developed on the basis of long-term tests and
2S/P 5 SIDR 1 1or2S/P 5 ~D /t! 1 1 (2)
i
four standard thermoplastic pipe material designation codes
where:
(see Appendix X1).
S 5 hydrostatic design stress, psi (or kPa),
5.4 Rework Material—Clean rework material, generated
P 5 pressure rating, psi (or kPa),
from the manufacturer’s own pipe production, may be used by
D 5 average outside diameter, in. (or mm),
0 the same manufacturer as long as the pipe produced meets all
D 5 average inside diameter, in. (or mm),
i
the requirements of this specification.
SDR 5 D /t, and
SIDR 5 D /t.
6. Requirements
i
3.1.6 standard dimension ratios (SDR)—a specific ratio of
6.1 Workmanship—The pipe shall be homogeneous
the average specified outside diameter to the minimum speci-
throughout and free of visible cracks, holes, foreign inclusions,
fied wall thickness
or other defects. The pipe shall be as uniform as commercially
D /t (3)
practicable in color, opacity, density, and other properties.
for outside diameter-controlled plastic pipe, the value of
NOTE 1—Pipe meeting the requirements in Specifications D 2239 or
which is derived by adding one to the pertinent number
D 3035 will meet all the requirements in this specification.
selected from the ANSI preferred number series 10.
6.2 Dimensions and Tolerances:
3.1.7 standard inside diameter dimension ratio (SIDR)—a
6.2.1 Controlling Diameter:
specific ratio of the average specified inside diameter to the
6.2.1.1 Outside Diameter Controlled Pipe—The outside
minimum specified wall thickness
diameters and tolerances shall be as shown in Table 1 when
D /t (4)
i measured in accordance with 7.4 and 7.4.1.1.
6.2.1.2 Inside Diameter Controlled Pipe—The inside diam-
for inside diameter-controlled plastic pipe, the value of
eters and tolerances shall be as shown in Table 2 when
which is derived by subtracting one from the pertinent number
measured in accordance with 7.4 and 7.4.1.2.
selected from the ANSI preferred number series 10.
6.2.2 Wall Thickness:
3.1.8 standard thermoplastic pipe material designation
6.2.2.1 Outside Diameter Controlled Pipe— The wall thick-
code—the pipe material designation code consists of the
nesses and tolerances shall be as shown in Table 3 when
abbreviation PE, followed by the Specification D 1248 grade in
measured in accordance with 7.4 and 7.4.2.
arabic numerals and the hydrostatic design stress in units of
6.2.2.2 Inside Diameter Controlled Pipe— The wall thick-
100 psi with any decimal figures dropped. When the design
nesses and tolerances shall be as shown in Table 4 when
stress code contains less than two figures, a cipher is used
measured in accordance with 7.4 and 7.4.2.
before the number. Example: PE2306, PE3406, PE3408, etc.
6.2.3 Wall Thickness Range—The wall thickness range of
3.1.9 working pressure—the maximum allowable pressure
any cross section shall not exceed 12 % when measured in
in the system. ASAE 5376 establishes this pressure shall not
accordance with 7.4 and 7.4.3.
exceed 72 % of the pressure rating of the pipe in order to
6.3 Sustained Pressure—The pipe shall not fail, balloon,
provide for surge protection.
burst, or weep as defined in Test Method D 1598 at the test
4. Classification
pressures given in Table 5 when tested in accordance with 7.5.
6.4 Burst Pressure—The minimum burst pressures for PE
4.1 General—This specification covers PE pipe made from
plastic pipe shall be as given in Table 6 when determined in
four PE plastic materials in both controlled inside diameter
accordance with 7.6.
with standard dimension ratios of SIDR 5.3, SIDR 7, SIDR 9,
6.5 Carbon Black—The polyethylene pipe extrusion com-
SIDR 11.5, SIDR 15, and SIDR 19 and controlled outside
pound shall contain at least 2 % carbon black when tested in
diameter with SDR 21, SDR 17, SDR 13.5, and SDR 11. The
accordance with 7.7. For pipe produced by simultaneous
pressure rating is uniform for all nominal pipe sizes for a given
multiple extrusion, this requirement shall apply to the outer
PE pipe material and SDR/SIDR (see Table X1.1 and Appendix
layer.
X1).
5. Materials TABLE 1 Outside Diameters and Tolerances for SDR-PR PE
Plastic Pipe
5.1 General—The polyethylenes used to make pipe meeting
the requirements of this specification are categorized by means
Nominal Pipe Outside Diameter, in. Tolerances, in.
of two criteria, namely: (1) short-term strength tests and (2)
Size, in.
long-term strength tests.
⁄2 0.840 60.004
5.2 Basic Materials and Compound—Basic material and
⁄4 1.050 60.004
1 1.315 60.005
plastic extrusion compound shall meet the requirements for one
1 ⁄4 1.660 60.005
of three basic PE grades as defined in Specification D 1248, in
1 ⁄2 1.900 60.006
which the requirements are based on short-term tests, or similar 2 2.375 60.006
3 3.500 60.008
grades as defined in Specification D 3350 in which the require-
4 4.500 60.009
ments are based on both short-term and long-term tests.
6 6.625 60.011
5.3 Hydrostatic Design Stresses—This specification covers
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 771
TABLE 2 Inside Diameters and Tolerances for SIDR-PR PE
peratures under the pressures given in Table 3, twelve speci-
Plastic Pipe
mens of pipe, each specimen at least ten times the nominal
diameter in length, but not less than 10 in. (250 mm) nor more
Nominal Pipe Average Inside Diameter, in. Tolerances, in.
than 3 ft (1000 mm) between end closures and containing the
Size, in.
permanent marking on the pipe. Test six specimens at each
⁄2 0.622 +0.010
temperature. Maintain the specimens at the pressures indicated
−0.010
⁄4 0.824 +0.010
for the appropriate temperature for a period of 1000 h. Hold the
−0.015
pressure as closely as possible, but within6 10 psi (670 kPa).
1 1.049 +0.010
Prior to pressurization, condition the specimens for at least 2 h
−0.020
1 ⁄4 1.380 +0.010
at within 6 2°C of the specified test temperatures. Maintain the
−0.020
test temperature within 6 2°C of the specified temperature.
1 ⁄2 1.610 +0.015
Test in accordance with Test Method D 1598, except maintain
−0.020
2 2.067 +0.015
the pressure at the values given in Table 3 for 1000 h. Failure
−0.020
of two of the six specimens tested at either temperature
2 ⁄2 2.469 +0.015
constitutes failure of the test. Failure of one of six specimens
−0.250
3 3.068 +0.015
tested at either temperature is cause for retest of six additional
−0.030
specimens at that temperature. Failure of one of six specimens
4 4.026 +0.015
−0.035 tested at either temperature in retest constitutes failure in the
6 6.065 +0.020
test. Failure of the pipe shall be in accordance with Test
−0.035
Method D 1598.
7.6 Burst Pressure—The test equipment, procedures and
failure definitions shall be as specified in Test Method D 1599.
6.6 Elevated Temperature Sustained Pressure—The average
In addition, the failure must be ductile.
failure time must meet or exceed the specified minimum
7.7 Carbon Black—Determine in duplicate the carbon black
average failure time in Table 7 for both hoop stresses of a given
content of the pipe, in accordance with Test Method D 1603.
pipe test category when tested in accordance with 7.9.
The average value shall meet the requirements of 6.5.
7. Test Methods
7.8 Density—Determine the density of the pipe compound
7.1 Conditioning:
in accordance with Test Method D 1505, using three speci-
7.1.1 Qualification Tests—Condition the test specimens at
mens. Calculate the density of the PE base resin (uncolored
73 6 3°F (23 6 2°C) in accordance with Procedure A of
PE) in the pipe compound as follows:
Methods D 618 for those tests where conditioning is required.
D 5 D 2 0.0044C (5)
R P
7.1.2 Quality Control Tests—Condition the test specimens
at 73 6 3°F (23 6 2°C) for4hinair or1hin water.
where:
7.2 Test Conditions—Conduct the tests in the Standard D 5 average density of resin, g/cm ,
R
D 5 density of pipe compound, g/cm , and
Laboratory Atmosphere of 73 6 3°F (23 6 2°C) unless
P
C 5 weight percent of carbon black.
otherwise specified in the test methods or in this specification.
7.9 Elevated Temperature Test—Determine pipe test cat-
7.3 Sampling—The selection of the sample or samples of
egory in Table 7 for a given piping material. Base resin melt
pipe shall be as agreed upon between the purchaser and seller.
index is determined in accordance with Test Method D 1238
In case of no prior agreement, any sample selected by the
and base resin density is determined in accordance with Test
testing laboratory shall be deemed adequate.
Method D 1505. Prepare at least three test specimens as in 7.5.
7.4 Dimensions and Tolerances—Any length of pipe may
Test at 176°F (80°C) and the hoop stress (S) specified in Table
be used to determine the dimensions.
7 for the given pipe category in accordance with Test Method
7.4.1 Controlling Diameter:
D 1598. Two of three specimens must meet or exceed the
7.4.1.1 With controlled outside diameter, measure the out-
specified minimum average failure time. Use water as internal
side diameter and tolerances of the pipe in accordance with
medium.
Method D 2122. The tolerances for out-of-roundness shall
apply only on pipe prior to shipment.
8. Joints
7.4.1.2 With controlled inside diameter, measure the inside
8.1 General—All joints shall be constructed to withstand
diameter of the pipe with a tapered plug gage in accordance
the design maximum working pressures for the pipeline
with Method D 2122.
without leakage, and shall leave the inside of the line free of
7.4.2 Wall Thickness—Make micrometer measurements of
any obstruction that may tend to reduce its capacity below
the wall thickness in accorda
...
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