ASTM C782-13(2018)

Standard Test Method for Softness of Preformed Tape Sealants

SIGNIFICANCE AND USE
5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in a variety of sealing applications. This procedure measures the softness of a preformed tape sealant and gives an indication of the preformed tape sealant's ease of compression during installation. The resistance to penetration may also give an indication of the toughness of the preformed tape sealant.
SCOPE
1.1 This test method describes a laboratory procedure for determining the softness of preformed tape sealants.  
Note 1: Cone penetration methods applicable to greases and to petrolatum are described in Test Methods D217 and D937. Test Method D2451 also uses a penetration technique for determining the degree of set in sash glazing compounds.  
1.2 The values stated in SI units are to be regarded as standard. Temperature values are also provided (in parentheses) in degrees Fahrenheit.  
1.3 The subcommittee with jurisdiction is not aware of any similar ISO standard.  
1.4 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.  
1.5 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

• Status: Historical
• Publication Date: 31-Dec-2017
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.20 - General Test Methods

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C782 − 13 (Reapproved 2018)
Standard Test Method for
Softness of Preformed Tape Sealants
This standard is issued under the fixed designation C782; 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.
1. Scope D2451 Test Method for Degree of Set for Glazing Com-
pounds on Metal Sash (Withdrawn 2002)
1.1 This test method describes a laboratory procedure for
E2251 Specification for Liquid-in-Glass ASTM Thermom-
determining the softness of preformed tape sealants.
eters with Low-Hazard Precision Liquids
NOTE 1—Cone penetration methods applicable to greases and to
petrolatum are described in Test Methods D217 and D937. Test Method
3. Terminology
D2451 also uses a penetration technique for determining the degree of set
3.1 Definitions—The definition of the following term used
in sash glazing compounds.
in this test method is found in Terminology C717: preformed
1.2 The values stated in SI units are to be regarded as
tape sealant.
standard. Temperature values are also provided (in parenthe-
ses) in degrees Fahrenheit.
4. Summary of Test Method
1.3 The subcommittee with jurisdiction is not aware of any
4.1 The preformed tape sealant specimen is allowed to
similar ISO standard.
equilibrate at standard conditions. A standard needle under a
1.4 This standard does not purport to address all of the
defined load is placed on the specimen for 5 s. The penetration
safety concerns, if any, associated with its use. It is the
of the needle into the preformed tape sealant is measured.
responsibility of the user of this standard to establish appro-
Multiple readings are recorded and averaged.
priate safety, health, and environmental practices and deter-
5. Significance and Use
mine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accor-
5.1 Preformed tape sealants are tacky, deformable solids
dance with internationally recognized principles on standard-
that are used under compression between two substrates in a
ization established in the Decision on Principles for the
variety of sealing applications. This procedure measures the
Development of International Standards, Guides and Recom-
softness of a preformed tape sealant and gives an indication of
mendations issued by the World Trade Organization Technical
the preformed tape sealant’s ease of compression during
Barriers to Trade (TBT) Committee.
installation. The resistance to penetration may also give an
indication of the toughness of the preformed tape sealant.
2. Referenced Documents
6. Apparatus
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
6.1 Needle Penetrometer, as described in Test Method D5,
D5 Test Method for Penetration of Bituminous Materials
with a certified needle.
D217 Test Methods for Cone Penetration of Lubricating
NOTE 2—Test Method D5 describes the needle method for determining
Grease
the penetration of bituminous material; Test Method D1321 describes a
D937 Test Method for Cone Penetration of Petrolatum
similar method for use with petroleum waxes, but a different needle is
D1321 Test Method for Needle Penetration of Petroleum used.
Waxes
6.2 Stop Watch or Timing Mechanism, for the penetrometer.
6.3 Thermometer, to measure the temperature of the test
specimen in the vicinity of the temperature of the test. For tests
This test method is under the jurisdiction of ASTM Committee C24 on Building
at 23 6 0.5°C (73 6 1°F) a thermometer conforming to the
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
General Test Methods.
requirements prescribed in Specification E2251 is
Current editon approved Jan. 1, 2018. Published January 2018. Originally
recommended, such as ASTM Saybolt Viscosity Thermometer
approved in 1986. Last previous edition approved in 2013 as C782 – 03(2013). DOI:
17C (or 17F) having a range from 19 to 27°C (66 to 80°F).
10.1520/C0782-13R18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C782 − 13 (2018)
7. Sampling 10.5 Adjust the apparatus to measure the distance through
which the needle penetrated the specimen. Record the amount
7.1 Samples to be tested shall be taken from a fresh roll of
of penetration to the nearest 0.1 mm.
preformed tape sea
...

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: C782 − 13 C782 − 13 (Reapproved 2018)
Standard Test Method for
Softness of Preformed Tape Sealants
This standard is issued under the fixed designation C782; 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.
1. Scope
1.1 This test method describes a laboratory procedure for determining the softness of preformed tape sealants.
NOTE 1—Cone penetration methods applicable to greases and to petrolatum are described in Test Methods D217 and D937. Test Method D2451 also
uses a penetration technique for determining the degree of set in sash glazing compounds.
1.2 The values stated in SI units are to be regarded as standard. Temperature values are also provided (in parentheses) in degrees
Fahrenheit.
1.3 The subcommittee with jurisdiction is not aware of any similar ISO standard.
1.4 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 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.
2. Referenced Documents
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
D5 Test Method for Penetration of Bituminous Materials
D217 Test Methods for Cone Penetration of Lubricating Grease
D937 Test Method for Cone Penetration of Petrolatum
D1321 Test Method for Needle Penetration of Petroleum Waxes
D2451 Test Method for Degree of Set for Glazing Compounds on Metal Sash (Withdrawn 2002)
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
3. Terminology
3.1 Definitions—The definition of the following term used in this test method is found in Terminology C717: preformed tape
sealant.
4. Summary of Test Method
4.1 The preformed tape sealant specimen is allowed to equilibrate at standard conditions. A standard needle under a defined load
is placed on the specimen for 5 s. The penetration of the needle into the preformed tape sealant is measured. Multiple readings
are recorded and averaged.
5. Significance and Use
5.1 Preformed tape sealants are tacky, deformable solids that are used under compression between two substrates in a variety
of sealing applications. This procedure measures the softness of a preformed tape sealant and gives an indication of the preformed
tape sealant’s ease of compression during installation. The resistance to penetration may also give an indication of the toughness
of the preformed tape sealant.
This test method is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on General
Test Methods.
Current editon approved May 1, 2013Jan. 1, 2018. Published June 2013January 2018. Originally approved in 1986. Last previous edition approved in 20092013 as
C782 – 03(2009).(2013). DOI: 10.1520/C0782-13.10.1520/C0782-13R18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C782 − 13 (2018)
6. Apparatus
6.1 Needle Penetrometer, as described in Test Method D5, with a certified needle.
NOTE 2—Test Method D5 describes the needle method for determining the penetration of bituminous material; Test Method D1321 describes a similar
method for use with petroleum waxes, but a different needle is used.
6.2 Stop Watch or Timing Mechanism, for the penetrometer.
6.3 Thermometer, to measure the temperature of the test specimen in the vicinity of the temperature of the test. For tests at 23
6 0.5°C (73 6 1°F) a thermometer conforming to the requirements prescribed in Specification E2251 is recommended, such as
ASTM Saybolt Viscosity Thermometer 17C (or 17F) having a range from 19 to 27°C (66 to 80°F).
7. Sampling
7.1 Samples to be tested shall be taken from a fresh roll of preformed tape sealant, after first removing a
...