ASTM E1319-23

Standard Guide for High-Temperature Static Strain Measurement

SIGNIFICANCE AND USE
4.1 The use of this guide is voluntary and is intended for use as a procedures guide for selection and application of specific types of strain gages for high-temperature installations. No attempt is made to restrict the type of strain gage types or concepts to be chosen by the user. The provisions of this guide may be invoked in specifications and procedures by specifying those that shall be considered mandatory for the purpose of the specific application. When so invoked, the user shall include in the work statement a notation that provisions of this guide shown as recommendation shall be considered mandatory for the purposes of the specification or procedure concerned, and shall include a statement of any exceptions to or modifications of the affected provisions of this guide.
SCOPE
1.1 This guide covers the selection and application of strain gages for the measurement of static strain up to and including the temperature range from 425 °C to 650 °C (800 °F to 1200 °F). This guide reflects some state-of-the-art techniques in high-temperature strain measurement.  
1.2 This guide assumes that the user is familiar with the use of bonded strain gages and associated signal conditioning circuits and instrumentation as discussed in  (1)  and (2).2 The strain gage systems described are those that have proven effective in the temperature range of interest and were available at the time of issue of this guide. It is not the intent of this guide to limit the user to one of the strain gage types described nor is it the intent to specify the type of strain gage system to be used for a specific application. However, in using any strain gage system including those described, the proposer shall be able to demonstrate the capability of the proposed strain gage system to meet the selection criteria provided in Section 5 and the needs of the specific application.  
1.3 The devices and techniques described in this guide can sometimes be applicable at temperatures above and below the range noted, and for making dynamic strain measurements at high temperatures with proper precautions. The strain gage manufacturer should be consulted for recommendations and details of such applications.  
1.4 The references are a part of this guide to the extent specified in the text.  
1.5 The values stated in metric (SI) units are to be regarded as the standard. The values given in parentheses are for informational purposes only.  
1.6 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.  
1.7 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: Published
• Publication Date: 30-Apr-2023
• ICS: 19.060 - Mechanical testing
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.01 - Calibration of Mechanical Testing Machines and Apparatus

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: E1319 − 23
Standard Guide for
1
High-Temperature Static Strain Measurement
This standard is issued under the fixed designation E1319; 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* priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This guide covers the selection and application of strain
1.7 This international standard was developed in accor-
gages for the measurement of static strain up to and including
dance with internationally recognized principles on standard-
the temperature range from 425 °C to 650 °C (800 °F to
ization established in the Decision on Principles for the
1200 °F). This guide reflects some state-of-the-art techniques
Development of International Standards, Guides and Recom-
in high-temperature strain measurement.
mendations issued by the World Trade Organization Technical
1.2 This guide assumes that the user is familiar with the use
Barriers to Trade (TBT) Committee.
of bonded strain gages and associated signal conditioning
2
2. Referenced Documents
circuits and instrumentation as discussed in (1) and (2). The
3
strain gage systems described are those that have proven
2.1 ASTM Standards:
effective in the temperature range of interest and were available
E6 Terminology Relating to Methods of Mechanical Testing
at the time of issue of this guide. It is not the intent of this guide
3. Terminology
to limit the user to one of the strain gage types described nor
is it the intent to specify the type of strain gage system to be
3.1 Definitions of Terms Common to Mechanical Testing:
used for a specific application. However, in using any strain
3.1.1 The terms calibration, elastic limit, error, gage factor,
gage system including those described, the proposer shall be
lead wire, modulus of elasticity, Poisson’s ratio, and Young’s
able to demonstrate the capability of the proposed strain gage
modulus are used as defined in Terminology E6. Some impor-
system to meet the selection criteria provided in Section 5 and
tant terms from E6 are reprinted here.
the needs of the specific application.
3.1.2 gage factor—for strain gages, the ratio between the
unit change of strain gage resistance due to strain and the
1.3 The devices and techniques described in this guide can
causing strain.
sometimes be applicable at temperatures above and below the
3.1.2.1 Discussion—The gage factor is dimensionless and is
range noted, and for making dynamic strain measurements at
expressed as follows:
high temperatures with proper precautions. The strain gage
manufacturer should be consulted for recommendations and
R 2 R
0
details of such applications.
R 1 ΔR
0
K 5 5 (1)
L 2 L ε R
1.4 The references are a part of this guide to the extent 0 0
L
0
specified in the text.
where:
1.5 The values stated in metric (SI) units are to be regarded
as the standard. The values given in parentheses are for K = gage factor,
R = strain gage resistance at test strain,
informational purposes only.
R = strain gage resistance at zero or reference strain,
0
1.6 This standard does not purport to address all of the
L = test structure length under the strain gage at test strain,
safety concerns, if any, associated with its use. It is the
L = test structure length under the strain gage at zero or
0
responsibility of the user of this standard to establish appro-
reference strain,
ΔR = change in strain gage resistance when strain is changed
from zero (or reference strain) to test strain, and
L2L
1
= 0
This guide is under the jurisdiction of ASTM Committee E28 on Mechanical
ε
the mechanical strain
Testing and is the direct responsibility of Subcommittee E28.01 on Calibration of L
0
Mechanical Testing Machines and Apparatus.
Current edition approved May 1, 2023. Published May 2023. Originally
3
approved in 1989. Last previous edition approved in 2021 as E1319 - 21. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/E1319-23. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
The boldface numbers in parentheses refer to the list of references at the end of Standards volume information, refer to the standard’s Document Summary page on
this guide. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Stat
...

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: E1319 − 21 E1319 − 23
Standard Guide for
1
High-Temperature Static Strain Measurement
This standard is issued under the fixed designation E1319; 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 guide covers the selection and application of strain gages for the measurement of static strain up to and including the
temperature range from 425 °C to 650 °C (800 °F to 1200 °F). This guide reflects some state-of-the-art techniques in
high-temperature strain measurement.
1.2 This guide assumes that the user is familiar with the use of bonded strain gages and associated signal conditioning circuits and
2
instrumentation as discussed in (1) and (2). The strain gage systems described are those that have proven effective in the
temperature range of interest and were available at the time of issue of this guide. It is not the intent of this guide to limit the user
to one of the strain gage types described nor is it the intent to specify the type of strain gage system to be used for a specific
application. However, in using any strain gage system including those described, the proposer shall be able to demonstrate the
capability of the proposed strain gage system to meet the selection criteria provided in Section 5 and the needs of the specific
application.
1.3 The devices and techniques described in this guide can sometimes be applicable at temperatures above and below the range
noted, and for making dynamic strain measurements at high temperatures with proper precautions. The strain gage manufacturer
should be consulted for recommendations and details of such applications.
1.4 The references are a part of this guide to the extent specified in the text.
1.5 The values stated in metric (SI) units are to be regarded as the standard. The values given in parentheses are for informational
purposes only.
1.6 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.
1.7 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.
1
This guide is under the jurisdiction of ASTM Committee E28 on Mechanical Testing and is the direct responsibility of Subcommittee E28.01 on Calibration of Mechanical
Testing Machines and Apparatus.
Current edition approved Feb. 1, 2021May 1, 2023. Published April 2021May 2023. Originally approved in 1989. Last previous edition approved in 20142021 as
E1319 - 98 (2014).E1319 - 21. DOI: 10.1520/E1319-21.10.1520/E1319-23.
2
The boldface numbers in parentheses refer to the list of references at the end of this guide.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1319 − 23
2. Referenced Documents
3
2.1 ASTM Standards:
E6 Terminology Relating to Methods of Mechanical Testing
3. Terminology
3.1 Definitions of Terms Common to Mechanical Testing:
3.1.1 The terms calibration, elastic limit, error, gage factor, lead wire, modulus of elasticity, Poisson’s ratio, and Young’s modulus
are used as defined in Terminology E6. Some important terms from E6 are reprinted here.
3.1.2 gage factor—for strain gages, the ratio between the unit change of strain gage resistance due to strain and the causing strain.
3.1.2.1 Discussion—
The gage factor is dimensionless and is expressed as follows:
R 2 R
0
R 1ΔR
0
K 5 5 (1)
L 2 L ε R
0 0
L
0
where:
K = gage factor,
R = strain gage resistance at test strain,
R = strain gage resistance at zero or reference strain,
0
L = test structure length under the strain gage at test strain,
L = test structure length under the strain gage at zero or reference strain,
0
ΔR = change in strain gage resistance when strain is changed from zero (or reference strain) to test strain, and
L2L
= 0
ε
the mechanical s
...