ASTM C425-04(2013)

Standard Specification for Compression Joints for Vitrified Clay Pipe and Fittings

ABSTRACT
This specification covers vitrified clay pipe and fitting materials and pipe joint assemblies test requirements for compression joints. Sealing elements shall be compressed and bounded between bearing surfaces to assure watertight integrity. Materials and manufacture, such as rubber ring-sealing elements, plastic components, and metallic components, shall conform to the chemical resistance, tensile strength, hardness, compression set, water absorption, ozone resistance, and accelerated oven aging requirements of the specification. Minimum of two assembled joints shall be tested for each diameter of pipe furnished. Joints shall be subjected to water pressure testing and shall not leak even when deflected, displaced or subjected to shear under the limits indicated in the specification.
SCOPE
1.1 This specification covers materials and test requirements for compression joints for vitrified clay pipe and fittings. See Specification C700 for pipe specifications. The test requirements are applicable to pipe joint assemblies prior to field installation of pipe. Note 1—Install pipe in accordance with Practice C12.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 The following precautionary caveat pertains only to the Test Requirements portion, Section 7, of this standard. 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

• Status: Historical
• Publication Date: 30-Nov-2013
• ICS: 23.040.60 - Flanges, couplings and joints
• Technical Committee: C04 - Vitrified Clay Pipe
• Drafting Committee: C04.20 - Methods of Test and Specifications

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C425 −04 (Reapproved 2013)
Standard Specification for
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Compression Joints for Vitrified Clay Pipe and Fittings
This standard is issued under the fixed designation C425; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope tic Elastomers—Tension
D471 Test Method for Rubber Property—Effect of Liquids
1.1 Thisspecificationcoversmaterialsandtestrequirements
D518 Test Method for Rubber Deterioration—Surface
for compression joints for vitrified clay pipe and fittings. See
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Cracking (Withdrawn 2007)
Specification C700 for pipe specifications. The test require-
D543 Practices for Evaluating the Resistance of Plastics to
ments are applicable to pipe joint assemblies prior to field
Chemical Reagents
installation of pipe.
D573 Test Method for Rubber—Deterioration in an Air
NOTE 1—Install pipe in accordance with Practice C12.
Oven
1.2 The values stated in inch-pound units are to be regarded
D583 Methods of Test for Water Resistance of Textile
as standard. The values given in parentheses are mathematical
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Fabrics (Withdrawn 1971)
conversions to SI units that are provided for information only
D1149 Test Methods for Rubber Deterioration—Cracking in
and are not considered standard.
an Ozone Controlled Environment
1.3 The following precautionary caveat pertains only to the
D1566 Terminology Relating to Rubber
Test Requirements portion, Section 7, of this standard.This
D2240 Test Method for Rubber Property—Durometer Hard-
standard does not purport to address all of the safety concerns,
ness
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
3. Terminology
practices and determine the applicability of regulatory limita-
3.1 Definitions—Terms relating to plastics and rubber shall
tions prior to use.
be as defined in Terminologies D583 and D1566, respectively.
3.2 Terminology C896 can be used for clarification of
2. Referenced Documents
terminology in this specification.
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2.1 ASTM Standards:
A167 Specification for Stainless and Heat-Resisting
4. Principles of Joint Design
Chromium-Nickel Steel Plate, Sheet, and Strip
4.1 Sealing elements shall be compressed between bearing
A240/A240M Specification for Chromium and Chromium-
surfaces to assure watertight integrity as required in Section 7.
Nickel Stainless Steel Plate, Sheet, and Strip for Pressure
Vessels and for General Applications
4.2 Sealing elements shall either be bonded to bearing
C12 Practice for Installing Vitrified Clay Pipe Lines
surfaces or be independent elements.
C700 Specification for Vitrified Clay Pipe, Extra Strength,
Standard Strength, and Perforated 5. Materials and Manufacture
C896 Terminology Relating to Clay Products
5.1 Rubber ring-sealing elements shall conform to the
D395 Test Methods for Rubber Property—Compression Set
requirements of Table 1.
D412 Test Methods forVulcanized Rubber andThermoplas-
5.2 Rubber for other than ring-sealing elements shall con-
form to the requirements of Table 2.
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This specification is under the jurisdiction of ASTM Committee C04 on
5.3 Plastic components shall conform to the requirements of
Vitrified Clay Pipe and is the direct responsibility of Subcommittee C04.20 on
Table 3.
Methods of Test and Specifications.
Current edition approved Dec. 1, 2013. Published December 2013. Originally
5.4 Metallic components shall be of corrosion-resistant
approvedin1958.Lastpreviouseditionapprovedin2009asC425 – 04(2009).DOI:
metal conforming to Specifications A167 and A240/A240M.
10.1520/C0425-04R13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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C425−04 (2013)
TABLE 1 Tests for Rubber—Ring-Sealing Elements
NOTE 1—Except for the water absorption test (Test Method D471), the tests shall be run on specimens cut from rubber test slabs representative of the
finished product.
Test Test Requirement ASTM Standard
Chemical resistance: D543 (48 h at 23 ± 2°C)
1N sulfuric acid no weight loss
1N hydrochloric acid no weight loss
Tensile strength 1500 psi (10.4 MPa) min; 500 % min elongation at break D412
Hardness Shore A durometer
...