ASTM C828-01

Standard Test Method for Low-Pressure Air Test of Vitrified Clay Pipe Lines

SCOPE
1.1 This test method defines procedures for testing vitrified clay pipe lines, using low-pressure air, to demonstrate the structural integrity of the installed line. Refer to Practice C12.
1.2 This test method shall be performed on lines after connection laterals, if any, have been plugged and braced adequately to withstand the test pressure, and after the trenches have been backfilled for a sufficient time to generate a significant portion of the ultimate trench load on the pipe line. The time between completion of the backfill operation and low-pressure air testing shall be determined by the approving authority.  
1.3 This test method may also be used as a preliminary test, which enables the installer to demonstrate the condition of the line prior to backfill and further construction activities.  
1.4 This test method is suitable for testing gravity-flow sewer pipe constructed of vitrified clay or combinations of clay and other pipe materials.  
1.5 Terminology C896 is to be used for clarification of terminology in this test method.  
1.6 The values stated in inch-pound units are to be regarded as the standard.  
1.7  This standard does not purport to address all of the safety problems 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

• Status: Historical
• Publication Date: 09-Jul-2001
• ICS: 23.040.01 - Pipeline components and pipelines in general
• Technical Committee: C04 - Vitrified Clay Pipe
• Drafting Committee: C04.20 - Methods of Test and Specifications

Relations

• Replaces: ASTM C828-98 - Standard Test Method for Low-Pressure Air Test of Vitrified Clay Pipe Lines
• Effective Date: 10-Jul-2001
• Replaced By: ASTM C828-03 - Standard Test Method for Low-Pressure Air Test of Vitrified Clay Pipe Lines
• Effective Date: 10-Feb-2003
• Referred By: ASTM C12-22a - Standard Practice for Installing Vitrified Clay Pipe Lines
• Effective Date: 10-Jul-2001
• Referred By: ASTM C301-18(2022) - Standard Test Methods for Vitrified Clay Pipe
• Effective Date: 10-Jul-2001
• Referred By: ASTM C1091-03a(2022) - Standard Test Method for Hydrostatic Infiltration Testing of Vitrified Clay Pipe Lines
• Effective Date: 10-Jul-2001
• Referred By: ASTM C1208/C1208M-18(2022) - Standard Specification for Vitrified Clay Pipe and Joints for Use in Microtunneling, Sliplining, Pipe Bursting, and Tunnels
• Effective Date: 10-Jul-2001
• Referred By: ASTM F1417-11A(2019)e1 - Standard Practice for Installation Acceptance of Plastic Non-pressure Sewer Lines Using Low-Pressure Air
• Effective Date: 10-Jul-2001
• Referred By: ASTM C700-18(2022) - Standard Specification for Vitrified Clay Pipe, Extra Strength, Standard Strength, and Perforated
• Effective Date: 10-Jul-2001

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: C 828 – 01
Standard Test Method for
1
Low-Pressure Air Test of Vitrified Clay Pipe Lines
This standard is issued under the fixed designation C 828; 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 the test if the rate of air loss, as measured by pressure drop,
does not exceed a specified amount in a specified time. This
1.1 This test method defines procedures for testing vitrified
may be determined by the use of Table 1, or calculated by use
clay pipe lines, using low-pressure air, to demonstrate the
of the formulas in Appendix X1.
integrity of the installed line. Refer to Practice C 12.
1.2 This test method shall be performed on lines after
4. Hazards
connection laterals, if any, have been plugged and braced
4.1 The low-pressure air test may be dangerous to personnel
adequately to withstand the test pressure, and after the trenches
if, through lack of understanding or carelessness, a line is
have been backfilled for a sufficient time to generate a
overpressurized or plugs are installed improperly. It is ex-
significant portion of the ultimate trench load on the pipe line.
tremely important that the various plugs be installed so as to
The time between completion of the backfill operation and
prevent the sudden expulsion of a poorly installed or partially
low-pressure air testing shall be determined by the approving
inflated plug. As an example of the hazard, a force of 250 lbf
authority.
(1112 N) is exerted on an 8-in. (205-mm) plug by an internal
1.3 This test method may also be used as a preliminary test,
pressure of 5 psi (34 kPa). Observe the following safety
which enables the installer to demonstrate the condition of the
precautions:
line prior to backfill and further construction activities.
4.1.1 No one shall be allowed in the manholes during testing
1.4 This test method is suitable for testing gravity-flow
because of the hazards.
sewer pipe constructed of vitrified clay or combinations of clay
4.1.2 Install all plugs securely.
and other pipe materials.
4.1.3 When lines are to be tested, it may be necessary that
1.5 Terminology C 896 is to be used for clarification of
the plugs be braced as an added safety factor.
terminology in this test method.
4.1.4 Do not overpressurize the lines.
1.6 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
5. Preparation of the Line
information only.
5.1 Air may pass through the walls of dry pipe. A wetted
1.7 This standard does not purport to address all of the
interior pipe surface is desirable and will produce more
safety concerns, if any, associated with its use. It is the
consistent test results. Usually moisture absorbed from the
responsibility of the user of this standard to establish appro-
backfill is sufficient to cope with this situation. Where practi-
priate safety and health practices and determine the applica-
cal, clean the line prior to testing to wet the pipe surface and
bility of regulatory limitations prior to use.
eliminate debris.
2. Referenced Documents
6. Procedure
2.1 ASTM Standards:
6.1 Determine the test time for the section of line to be
2
C 12 Practice for Installing Vitrified Clay Pipe Lines
tested using Table 1 or Table X1.1 or the formulas in Appendix
C 1091 Test Method for Hydrostatic Infiltration and Exfil-
X1.
2
tration Testing of Vitrified Clay Pipe Lines
2 6.2 Plug all openings in the test section.
C 896 Terminology Relating to Clay Products
6.3 Add air until the internal pressure of the line is raised to
3. Summary of Test Method approximately 4.0 psi (28 kPa). After this pressure is reached,
allow the pressure to stabilize. The pressure will normally drop
3.1 The section of the line to be tested is plugged. Air, at low
as the air temperature stabilizes. This usually takes 2 to 5 min,
pressure, is introduced into the plugged line. The line passes
depending on the pipe size. The pressure should be reduced to
3.5 psi (24 kPa) before starting the test.
1
This test method is under the jurisdiction of ASTM Committee C04 on Vitrified 6.4 Start the test when the pressure is at 3.5 psi (24 kPa). If
Clay Pipe and is the direct responsibility of Subcommittee C04.20 on Methods of
a 1 psi (7 kPa) drop does not occur within the test time, the line
Test and Specifications.
has passed. If the pressure drop is more than 1 psi (7 kPa)
Current edition approved July 10, 2001. Published August 2001. Originally
during the test time, the line is presumed to have failed the test.
published as C 828–75T. Last previous edition C 828–98.
2
Annual Book of ASTM Standards, Vol 04.05
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