ASTM C303-07

Standard Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation

SIGNIFICANCE AND USE
Dimensional measurements of the product thermal insulation are essential in determining compliance of a product with specification limits. Dimensional measurements of various test specimens are also required by the specific test method.
Density measurements of the product 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. In order to design for equipment supports, check the material for the “as received density” where the moisture content of the product as received and then installed may consequential.
SCOPE
1.1 This test method covers determination of the dimensions and density of block and board insulation as defined in Terminology C 168.
1.2 The values stated in the SI system are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2007
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.32 - Mechanical Properties

Relations

• Replaces: ASTM C303-02 - Standard Test Method for Dimensions and Density of Preformed Block and Broad-Type Thermal Insulation
• Effective Date: 01-Apr-2007
• Replaced By: ASTM C303-10 - Standard Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation
• Effective Date: 01-Jun-2010
• Referred By: ASTM C612-14(2019) - Standard Specification for Mineral Fiber Block and Board Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C1104/C1104M-19 - Standard Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C578-22 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM D6817/D6817M-17(2021) - Standard Specification for Rigid Cellular Polystyrene Geofoam
• Effective Date: 01-Apr-2007
• Referred By: ASTM C1512-10(2020) - Standard Test Method for Characterizing the Effect of Exposure to Environmental Cycling on Thermal Performance of Insulation Products
• Effective Date: 01-Apr-2007
• Referred By: ASTM C447-15(2022) - Standard Practice for Estimating the Maximum Use Temperature of Thermal Insulations
• Effective Date: 01-Apr-2007
• Referred By: ASTM C421-08(2020) - Standard Test Method for Tumbling Friability of Preformed Block-Type and Preformed Pipe-Covering-Type Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C591-22 - Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C240-21 - Standard Test Methods for Testing Cellular Glass Insulation Block
• Effective Date: 01-Apr-2007
• Referred By: ASTM C1763-20 - Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials
• Effective Date: 01-Apr-2007
• Referred By: ASTM C610-17(2023) - Standard Specification for Molded Expanded Perlite Block and Pipe Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C533-17(2023) - Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation
• Effective Date: 01-Apr-2007
• Referred By: ASTM C552-22 - Standard Specification for Cellular Glass Thermal Insulation
• Effective Date: 01-Apr-2007

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:C303–07
Standard Test Method for
Dimensions and Density of Preformed Block and
1
Board–Type Thermal Insulation
This standard is issued under the fixed designation C303; 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 the procedure must be consistent with that as given in the
materialspecification.Ifthematerialistobetestedinthe“dry”
1.1 Thistestmethodcoversdeterminationofthedimensions
condition it shall be dried to constant mass. If the material
and density of block and board insulation as defined in
specification does not give conditioning instructions, a condi-
Terminology C168.
tioning environment of 23°C 6 2°C and 50 6 5 % relative
1.2 The values stated in SI units are to be regarded as
humidity per Practice C870 shall be used. From the measured
standard. No other units of measurement are included in this
mass and measured dimensions, the density of the product is
standard.
calculated.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
NOTE 1—Some materials may contain volatiles such as moisture when
responsibility of the user of this standard to establish appro-
manufactured or shipped, or both.
priate safety and health practices and determine the applica-
5. Significance and Use
bility of regulatory limitations prior to use.
5.1 Dimensional measurements of the product thermal in-
2. Referenced Documents
sulation are essential in determining compliance of a product
2
2.1 ASTM Standards: with specification limits. Dimensional measurements of vari-
C167 TestMethodsforThicknessandDensityofBlanketor ous test specimens are also required by the specific test
Batt Thermal Insulations method.
C168 Terminology Relating to Thermal Insulation 5.2 Density measurements of the product insulation are
C390 Practice for Sampling and Acceptance of Thermal useful in determining compliance of a product with specifica-
Insulation Lots tion limits, and in providing a relative gage of product weights.
C870 Practice for Conditioning of Thermal Insulating Ma- For any one kind of insulation, some important physical and
terials mechanical properties, such as thermal conductivity, heat
capacity, strength, etc., bear a specific relationship with its
3. Terminology
density. In order to design for equipment supports, check the
3.1 General—Terminology C168 shall be considered as
material for the “as received density” where the moisture
applicable to the terms used in this test method. content of the product as received and then installed may
consequential.
4. Summary of Test Method
6. Apparatus
4.1 The material shall be tested in the “dry” condition or in
the “as manufactured and received” condition (see Note 1) but
6.1 Steel measure, (ruler or tape), graduated in millimetres
or better, suitable for measuring dimensions to 6 1.0 % (see
1
Note 2).
ThistestmethodisunderthejurisdictionofASTMCommitteeC16onThermal
Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical 6.2 Instrument, such as caliper, dial gage, or micrometer
Properties.
graduated in millimetres or better, with a minimum plate
Current edition approved May 1, 2007. Published May 2007. Originally
diameter of 6 mm, and a maximum plate of 25 by 25 mm.This
published as approved in 1952. Last previous edition approved in 2002 as
instrument shall be suitable for measuring the dimensions to
C303 – 02. DOI: 10.1520/C0303-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
61.0 %. This instrument shall not cause deformation of the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
product when measuring it. The pressure exerted by this
Standards volume information, refer to the standard’s Document Summary page on
2
measuring plate should not exceed 0.245 kN/mm .
the ASTM website.
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C303–07
6.3 Pin probe depth gage per Test Methods C167. shall also be an additional length or width measurement for
6.4 Scales, accurate to within5gor within 1 % of the each additional meter increase in length or width over 1 m
specimen mass (whichever is less). If the material specification long. These measurement positions shall be spaced approxi-
calls for a greater accuracy, this shall take precedence. If the mately equally within the original measurement area defined
samples are to be cond
...