Standard Specification for Clay Flue Liners and Chimney Pots

ABSTRACT
This specification establishes the criteria for acceptance, prior to installation, of clay flue liners and chimney pots used for conveying hot gases in masonry chimneys. The liners and pots shall be manufactured from fire clay, shale, surface clay, or a combination of these materials that when formed and fired to suitable temperatures, shall yield a product that is strong, durable, serviceable, and conforms to this specification. The liners and pots shall be subjected to absorption, acid resistance, and freeze-thaw cycle tests.
SCOPE
1.1 This specification establishes the criteria for acceptance, prior to installation, of clay flue liners and chimney pots used for conveying hot gases in masonry chimneys.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 For installation of clay flue liners, see Practice C 1283.

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31-Mar-2007
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ASTM C315-07 - Standard Specification for Clay Flue Liners and Chimney Pots
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C315 – 07
Standard Specification for
1
Clay Flue Liners and Chimney Pots
This standard is issued under the fixed designation C315; 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 5. Materials and Manufacture
1.1 This specification establishes the criteria for acceptance, 5.1 Flue liners and chimney pots shall be manufactured
prior to installation, of clay flue liners and chimney pots used from fire clay, shale, surface clay, or a combination of these
for conveying hot gases in masonry chimneys. materials that when formed and fired to suitable temperatures,
1.2 The values stated in inch-pound units are to be regarded shall yield a product that is strong, durable, serviceable, and
as the standard. The values given in parentheses are for conforms to this specification.
information only.
6. Physical and Chemical Requirements
1.3 For installation of clay flue liners, see Practice C1283.
6.1 Absorption:
2. Referenced Documents
6.1.1 The absorption of clay flue liners and chimney pots
2
2.1 ASTM Standards: shall not exceed 8.0 % when tested in accordance with Test
C67 Test Methods for Sampling and Testing Brick and Methods C301.
Structural Clay Tile 6.1.2 Test Specimens—Five dry test specimens shall be
C301 Test Methods for Vitrified Clay Pipe obtained from the five flue liners or chimney pots to be tested
C896 Terminology Relating to Clay Products and shall measure as closely as possible to 4 by 4 in. (100 by
C1283 Practice for Installing Clay Flue Lining 100 mm) per side. All rough edges shall be ground off and
loose particles removed.
3. Terminology
6.1.3 If any of the test specimens fail to meet the require-
3.1 Definitions—Clay, fire clay, shale, and surface clay are ments, the manufacturer shall be allowed to retest on two
as defined in Terminology C896. additional specimens for each one that failed. The flues and
3.1.1 chimney pot—a pipe used at the top of the chimney to
pots will be acceptable if all the subsequent specimens for
increase draft and carry off smoke. retest meet the requirements.
6.2 Acid Resistance:
4. Classification
6.2.1 This is a test used to determine the resistance of clay
4.1 Types—Flue liners acceptable under this specification
flue liners and chimney pots to the action of acids encountered
shall be designated as rectangular nonmodular, rectangular
in chimneys. This test shall be performed only when specified.
modular, round or oval.
6.2.2 The flue liner and chimney pots shall be acceptable if
the acid soluble material does not exceed 0.25 % when tested
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in accordance with Test Methods C301.
This specification is under the jurisdiction of ASTM Committee C04 on
Vitrified Clay Pipe and is the direct responsibility of Subcommittee C04.20 on 6.2.3 Test Specimens—Select one test specimen from each
Methods of Test and Specifications.
size of flue liner or chimney pot. The specimens shall measure
Current edition approved April 1, 2007. Published April 2007. Originally
about 2 by 2 in. (51 by 51 mm) per side and weigh not more
approved in 1953. Last previous edition approved in 2006 as C315 – 06. DOI:
than 200 g. They shall be sound pieces with all edges freshly
10.1520/C0315-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
broken, free of cracks or shattered edges, and shall be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
thoroughly cleaned.
Standards volume information, refer to the standard’s Document Summary page on
6.3 Freeze-Thaw Cycle Test:
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C315 – 07
TABLE 2 Rectangular Modular Clay Flue Liners—Standard
6.3.1 When flue liners or chimney pots are tested in accor-
Dimensions
dance with Test Methods C67, Section 9 on structural clay tile,
Nominal Wall Outside Corner
there shall be no breakage and the percentage of weight loss
Outside Dimensions, in. (mm) Thickness, Radius, max.,
shall not exceed 0.5 %.
in. (mm) in. (mm)
6.3.2 Test Specimens—Five dry test specimens shall be
1 1 5
3 ⁄2 by 7 ⁄2 (90 by 190) ⁄8 (16) 1 (25)
obtained from the five flue liners or chimney pots to be tested 1 1 5
3 ⁄2 by 11 ⁄2 (90 by 290) ⁄8 (16) 1 (25)
1 1 5
7 ⁄2 by 7 ⁄2 (190 by 190) ⁄8 (16) 2 (51)
and shall measure as closely as possible to 4 by 4 in. (100 by
1 1 3
7 ⁄2 by 11 ⁄2 (190 by 290) ⁄4 (19) 2 (51)
100 mm) per side. All rough edges shall be ground off and
1 1 7
11 ⁄2 by
...

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