ASTM C302-13(2022)
(Test Method)Standard Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
Standard Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
SIGNIFICANCE AND USE
5.1 Density measurements of preformed pipe insulation are useful in determining compliance of a product with specification limits and in providing a relative gage of product weights. For any one kind of insulation some important physical and mechanical properties, such as thermal conductivity, heat capacity, strength, etc., bear a specific relationship with its density; however, on a density basis, these properties are not directly comparable with those for other kinds of material.
5.2 The physical dimensions of preformed pipe insulation are important quantities not only for determining the density of the pipe insulation but also for determining the conformance to specifications. The use of multilayer insulations is common, and the dimensions are necessary to ensure proper nesting of the layers.
SCOPE
1.1 This test method covers the determination of the dimensions and density, after conditioning, of preformed pipe insulation.
1.1.1 Procedure A is applicable to sections of one-piece pipe covering or to sections of segmental pipe covering that can be joined together concentrically and measured as one-piece.
1.1.2 Procedure B is applicable to segmental pipe covering where each section of material is measured.
1.1.3 Procedure C is applicable to sections of one-piece pipe covering, such as soft foam or mineral wool materials, where it is possible to penetrate the material.
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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C302 − 13 (Reapproved 2022)
Standard Test Method for
Density and Dimensions of Preformed Pipe-Covering-Type
Thermal Insulation
This standard is issued under the fixed designation C302; 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 U.S. Department of Defense.
1. Scope C168 Terminology Relating to Thermal Insulation
C670 Practice for Preparing Precision and Bias Statements
1.1 This test method covers the determination of the dimen-
for Test Methods for Construction Materials
sions and density, after conditioning, of preformed pipe insu-
C870 Practice for Conditioning of Thermal Insulating Ma-
lation.
terials
1.1.1 ProcedureAis applicable to sections of one-piece pipe
E691 Practice for Conducting an Interlaboratory Study to
covering or to sections of segmental pipe covering that can be
Determine the Precision of a Test Method
joined together concentrically and measured as one-piece.
1.1.2 Procedure B is applicable to segmental pipe covering
3. Terminology
where each section of material is measured.
1.1.3 ProcedureCisapplicabletosectionsofone-piecepipe 3.1 Definitions—See Terminology C168.
covering, such as soft foam or mineral wool materials, where
4. Summary of Test Method
it is possible to penetrate the material.
4.1 The material to be tested is conditioned to constant
1.2 The values stated in inch-pound units are to be regarded
weight.Thedensityofthepipeinsulationiscalculatedfromthe
as the standard. The values given in parentheses are for
conditioned mass and measured dimensions.
information only.
1.3 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.1 Density measurements of preformed pipe insulation are
useful in determining compliance of a product with specifica-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. tion limits and in providing a relative gage of product weights.
1.4 This international standard was developed in accor- For any one kind of insulation some important physical and
dance with internationally recognized principles on standard- mechanical properties, such as thermal conductivity, heat
ization established in the Decision on Principles for the capacity, strength, etc., bear a specific relationship with its
Development of International Standards, Guides and Recom- density; however, on a density basis, these properties are not
mendations issued by the World Trade Organization Technical directly comparable with those for other kinds of material.
Barriers to Trade (TBT) Committee.
5.2 The physical dimensions of preformed pipe insulation
are important quantities not only for determining the density of
2. Referenced Documents
the pipe insulation but also for determining the conformance to
2.1 ASTM Standards:
specifications. The use of multilayer insulations is common,
C167 Test Methods for Thickness and Density of Blanket or
and the dimensions are necessary to ensure proper nesting of
Batt Thermal Insulations
the layers.
6. Apparatus
This test method is under the jurisdiction ofASTM Committee C16 on Thermal
Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical 1
6.1 Flexible Steel Rule, graduated in ⁄32-in. or 1.0-mm
Properties.
intervals.
Current edition approved May 1, 2022. Published June 2022. Originally
approved in 1952. Last previous edition approved in 2017 as C302 – 13 (2017).
6.2 Scale, with sufficient capacity to weigh the specimen to
DOI: 10.1520/C0302-13R22.
within 0.01 lb or 5 g.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.3 Pin Probe, as defined in Test Methods C167.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.4 Steel Rule, graduated in ⁄32-in. or 1.0-mm intervals.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C302 − 13 (2022)
6.5 Stainless Steel Shim Stock, 2 in. (75 mm) wide, longer 8. Conditioning
than the circumference of the pipe insulation, and 0.010 in.
8.1 Remove any jacket on the specimen unless it is of a type
(0.25 mm) thick.
that would cause disintegration of the specimen upon removal.
6.6 Pi Tape, graduated to read a diameter directly to the
1 8.2 Condition the specimen to constant mass in accordance
nearest ⁄32 in. or 1.0 mm.
with Practice C870.
6.7 Pieces of Pipe, on which to install the pipe insulation
under test (only required for Procedure 3).
9. Procedures
7. Test Specimen
7.1 The test specimen shall be of a commercial size.
7.2 If sectional pipe segments are to be used for Procedures
1 or 3, the sections shall be joined together to form a hollow
cylinder.
Procedure A
9.1 One-Piece Pipe Section: 9.1.3 Measure the circumference of the specimen in six
locations, uniformly spaced along its length, to the nearest ⁄32
9.1.1 Weigh the conditioned pipe section to the nearest 0.01
in. or 1.0 mm.
lb or 5 g.
9.1.4 Measure the wall thickness at six locations, uniformly
9.1.2 Measure the length of the specimen in six locations,
spaced, three on each end of the specimen, to the nearest ⁄32 in.
uniformly spaced around its circumference, to the nearest ⁄32
or 1.0 mm.
in. or 1.0 mm.
Procedure B
9.2 Segmental Pipe Sections: 9.2.4 Measure the length of the specimen in six locations,
9.2.1 Weigh the conditioned segmental pipe section to the uniformlyspacedaroundtheoutersurface,tothenearest ⁄32in.
nearest 0.01 lb or 5 g.
or 1.0 mm.
9.2.2 Measure the length of the arc formed by the outer
9.2.5 Measure the wall
...
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