ASTM C303-10

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 C168.
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 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-May-2010
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.32 - Mechanical Properties

Relations

• Replaces: ASTM C303-07 - Standard Test Method for Dimensions and Density of Preformed Block and Board-Type Thermal Insulation
• Effective Date: 01-Jun-2010
• Replaced By: ASTM C303-10(2016) - Standard Test Method for Dimensions and Density of Preformed Block and Board–Type Thermal Insulation
• Effective Date: 15-Oct-2016
• Referred By: ASTM C1616-07(2018) - Standard Test Method for Determining the Moisture Content of Organic and Inorganic Insulation Materials by Weight
• Effective Date: 01-Jun-2010
• Referred By: ASTM D6817/D6817M-17(2021) - Standard Specification for Rigid Cellular Polystyrene Geofoam
• Effective Date: 01-Jun-2010
• Referred By: ASTM C1902-22a - Standard Specification for Cellular Glass Insulation Used in Building and Roof Applications
• Effective Date: 01-Jun-2010
• Referred By: ASTM C552-22 - Standard Specification for Cellular Glass Thermal Insulation
• Effective Date: 01-Jun-2010
• Referred By: ASTM C447-15(2022) - Standard Practice for Estimating the Maximum Use Temperature of Thermal Insulations
• Effective Date: 01-Jun-2010
• 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-Jun-2010
• Referred By: ASTM C1104/C1104M-19 - Standard Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber Insulation
• Effective Date: 01-Jun-2010
• Referred By: ASTM C1763-20 - Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials
• Effective Date: 01-Jun-2010
• Referred By: ASTM C1393-19 - Standard Specification for Perpendicularly Oriented Mineral Fiber Roll and Sheet Thermal Insulation for Pipes and Tanks
• Effective Date: 01-Jun-2010
• Referred By: ASTM C240-21 - Standard Test Methods for Testing Cellular Glass Insulation Block
• Effective Date: 01-Jun-2010
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 01-Jun-2010
• Referred By: ASTM C726-17 - Standard Specification for Mineral Wool Roof Insulation Board
• Effective Date: 01-Jun-2010
• 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-Jun-2010

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 − 10
StandardTest 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 U.S. 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 73°F 6 4°F (23°C 6 2°C) and 50 6
1.2 The values stated in inch-pound units are to be regarded
5 % relative humidity per Practice C870 shall be used. From
as standard. The values given in parentheses are mathematical
the measured mass and measured dimensions, the density of
conversions to SI units that are provided for information only
the product is calculated.
and are not considered standard.
NOTE 1—Some materials may contain volatiles such as moisture when
1.3 This standard does not purport to address all of the
manufactured or shipped, or both.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
5.1 Dimensional measurements of the product thermal in-
bility of regulatory limitations prior to use.
sulation are essential in determining compliance of a product
with specification limits. Dimensional measurements of vari-
2. Referenced Documents
ous test specimens are also required by the specific test
2
2.1 ASTM Standards:
method.
C167 Test Methods for Thickness and Density of Blanket or
5.2 Density measurements of the product insulation are
Batt Thermal Insulations
useful in determining compliance of a product with specifica-
C168 Terminology Relating to Thermal Insulation
tion limits, and in providing a relative gage of product weights.
C390 Practice for Sampling and Acceptance of Thermal
For any one kind of insulation, some important physical and
Insulation Lots
mechanical properties, such as thermal conductivity, heat
C870 Practice for Conditioning of Thermal Insulating Ma-
capacity, strength, etc., bear a specific relationship with its
terials
density. In order to design for equipment supports, check the
3. Terminology
material for the “as received density” where the moisture
content of the product as received and then installed may
3.1 General—Terminology C168 shall be considered as
consequential.
applicable to the terms used in this test method.
4. Summary of Test Method
6. Apparatus
4.1 The material shall be tested in the “dry” condition or in
6.1 Steel measure, (ruler or tape), graduated in millimetres
the “as manufactured and received” condition (see Note 1) but
or better, suitable for measuring dimensions to 6 1.0 % (see
Note 2).
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC16onThermal
6.2 Instrument, such as caliper, dial gage, or micrometer
Insulationand is the direct responsibility of Subcommittee C16.32 on Mechanical
graduated in millimetres or better, with a minimum plate
Properties.
diameter of 6 mm, and a maximum plate of 1.0 by 1.0 in. (25
Current edition approved June 1, 2010. Published July 2010. Originally
by 25 mm).This instrument shall be suitable for measuring the
published as approved in 1952. Last previous edition approved in 2007 as
C303 – 07. DOI: 10.1520/C0303-10.
dimensions to 61.0 %. This instrument shall not cause defor-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mation of the product when measuring it. The pressure exerted
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
by this measuring plate should not exceed 0.040 psi or 5psf
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (0.245 kPa).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C303 − 10
6.3 Pin probe depth gage per Test Methods C167. for each additional meter increase in length or width over 3 ft
(1 m) long. These measurement positions shall be spaced
6.4 Scales,accuratetowithin0.0lb(5g)orwithin1 %ofthe
approximately equally within the original measurement area
specimen mass (whichever is less). If the material spe
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C303–07 Designation:C303–10
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
1.1 This test method covers determination of the dimensions and density of block and board insulation as defined in
Terminology C168.
1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C168 Terminology Relating to Thermal Insulation
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C870 Practice for Conditioning of Thermal Insulating Materials
3. Terminology
3.1 General—Terminology C168 shall be considered as applicable to the terms used in this test method.
4. Summary of Test Method
4.1 The material shall be tested in the “dry” condition or in the “as manufactured and received” condition (see Note 1) but the
procedure must be consistent with that as given in the material specification. If the material is to be tested in the “dry” condition
it shall be dried to constant mass. If the material specification does not give conditioning instructions, a conditioning environment
of 23°C73°F 6 4°F (23°C 6 2°C) and 50 6 5 % relative humidity per Practice C870 shall be used. From the measured mass and
measured dimensions, the density of the product is calculated.
NOTE 1—Some materials may contain volatiles such as moisture when manufactured or shipped, or both.
5. Significance and Use
5.1 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.
5.2 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.
1
This test method is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.32 on Mechanical
Properties.
Current edition approved MayJune 1, 2007.2010. Published May 2007.July 2010. Originally published as approved in 1952. Last previous edition approved in 20022007
as C303 – 027. DOI: 10.1520/C0303-107.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C303–10
6. Apparatus
6.1 Steel measure, (ruler or tape), graduated in millimetres or better, suitable for measuring dimensions to 6 1.0 % (see Note
2).
6.2 Instrument, such as caliper, dial gage, or micrometer graduated in millimetres or better, with a minimum plate diameter of
6 mm, and a maximum plate of 251.0 by 1.0 in. (25 by 25 mm). This instrument shall be suitable for measuring the dimensions
to 61.0 %. This instrument shall not cause deformation of t
...