ASTM C302-95

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: C 302 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Density and Dimensions of Preformed Pipe-Covering-Type
1
Thermal Insulation
This standard is issued under the fixed designation C 302; 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 4. Summary of Test Method
1.1 This test method covers the determination of the dimen- 4.1 The material to be tested is conditioned to constant
sions and density, after conditioning, of preformed pipe insu- weight. The density of the pipe insulation is calculated from the
lation. conditioned mass and measured dimensions.
1.1.1 Procedure 1 is applicable to sections of one-piece pipe
5. Significance and Use
covering or to sections of segmental pipe covering that can be
5.1 Density measurements of preformed pipe insulation are
joined together concentrically and measured as one-piece.
1.1.2 Procedure 2 is applicable to segmental pipe covering useful in determining compliance of a product with specifica-
tion limits and in providing a relative gage of product weights.
where each section of material is measured.
1.1.3 Procedure 3 is applicable to sections of one-piece pipe For any one kind of insulation some important physical and
mechanical properties, such as thermal conductivity, heat
covering, such as soft foam or mineral wool materials, where
it is possible to penetrate the material. capacity, strength, etc., bear a specific relationship with its
density; however, on a density basis, these properties are not
1.2 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for directly comparable with those for other kinds of material.
5.2 The physical dimensions of preformed pipe insulation
information only.
1.3 This standard does not purport to address all of the are important quantities not only for determining the density of
the pipe insulation but also for determining the conformance to
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- specifications. The use of multilayer insulations is common,
and the dimensions are necessary to ensure proper nesting of
priate safety and health practices and determine the applica-
the layers.
bility of regulatory limitations prior to use.
2. Referenced Documents 6. Apparatus
1
6.1 Flexible Steel Rule, graduated in ⁄32-in. or 1.0-mm
2.1 ASTM Standards:
C 167 Test Methods for Thickness and Density of Blanket intervals.
2
6.2 Scale, with sufficient capacity to weigh the specimen to
or Batt Thermal Insulations
C 168 Terminology Relating to Thermal Insulating Materi- within 0.01 lb or 5 g.
2
6.3 Pin Probe, as defined in Test Methods C 167.
als
1
C 670 Practice for Preparing Precision and Bias Statements 6.4 Steel Rule, graduated in ⁄32-in. or 1.0-mm intervals.
3
6.5 Stainless Steel Shim Stock, 2 in. (75 mm) wide, longer
for Test Methods for Construction Materials
C 870 Practice for Conditioning of Thermal Insulating Ma- than the circumference of the pipe insulation, and 0.010 in.
2
(0.25 mm) thick.
terials
E 691 Practice for Conducting an Interlaboratory Study to 6.6 Pi Tape, graduated to read a diameter directly to the
4
1
nearest ⁄32 in. or 1.0 mm.
Determine the Precision of a Test Method
6.7 Pieces of Pipe, on which to install the pipe insulation
3. Terminology
under test (only required for Procedure 3).
3.1 Definitions—See Terminology C 168.
7. Test Specimen
7.1 The test specimen shall be of a commercial size.
1
This test method is under the jurisdiction of ASTM Committee C-16 on
7.2 If sectional pipe segments are to be used for Procedures
Thermal Insulation and is the direct responsibility of Subcommittee C16.32 on
1 or 3, the sections shall be joined together to form a hollow
Mechanical Properties.
cylinder.
Current edition approved Aug. 15, 1995. Published October 1995. Originally
1
published as C 302 – 52 T. Last previous edition C 302 – 82 (Reapproved 1989)e .
2
Annual Book of ASTM Standards, Vol 04.06. 8. Conditioning
3
Annual Book of ASTM Standards, Vol 04.02.
8.1 Remove any jacket on the specimen unless it is of a type
4
Annual Book of ASTM Standards, Vol 14.02.
1

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C 302
that would cause disintegration of the specimen upon removal. V 5 Lt~C2p t!/1728 (1)
8.2 Condition the specimen to constant mass in accordance
where:
with Practice C 870.
3
V 5 volume of the specimen, ft ,
L 5 average length
...