ASTM C1130-21
(Practice)Standard Practice for Calibration of Thin Heat Flux Transducers
Standard Practice for Calibration of Thin Heat Flux Transducers
SIGNIFICANCE AND USE
5.1 The application of HFTs and temperature sensors to building envelopes provide in-situ data for evaluating the thermal performance of an opaque building component under actual environmental conditions, as described in Practices C1046 and C1155. These applications require calibration of the HFTs at levels of heat flux and temperature consistent with end-use conditions.
5.2 This practice provides calibration procedures for the determination of the heat flux transducer sensitivity, S, that relates the HFT voltage output, E, to a known input value of heat flux, q.
5.2.1 The applied heat flux, q, shall be obtained from steady-state tests conducted in accordance with either Test Method C177, C518, C1114, C1363, or, for cryogenic applications, Guide C1774.
5.2.2 The resulting voltage output, E, of the heat flux transducer is measured directly using (auxiliary) readout instrumentation connected to the electrical output leads of the sensor.
Note 1: A heat flux transducer (see also Terminology C168) is a thin stable substrate having a low mass in which a temperature difference across the thickness of the device is measured with thermocouples connected electrically in series (that is, a thermopile). Commercial HFTs typically have a central sensing region, a surrounding guard, and an integral temperature sensor that are contained in a thin durable enclosure. Practice C1046, Appendix X2 includes detailed descriptions of the internal constructions of two types of HFTs.
5.3 The HFT sensitivity depends on several factors including, but not limited to, size, thickness, construction, temperature, applied heat flux, and application conditions including adjacent material characteristics and environmental effects.
5.4 The subsequent conversion of the HFT voltage output to heat flux under application conditions requires (1) a standardized technique for determining the HFT sensitivity for the application of interest; and, (2) a comprehensive understanding of the factor...
SCOPE
1.1 This practice, in conjunction with either Test Method C177, C518, C1114, or C1363, establishes procedures for the calibration of heat flux transducers that are dimensionally thin in comparison to their planar dimensions.
1.1.1 The thickness of the heat flux transducer shall be less than 30 % of the narrowest planar dimension of the heat flux transducer.
1.2 This practice describes techniques for determining the sensitivity, S, of a heat flux transducer when subjected to one dimensional heat flow normal to the planar surface or when installed in a building application.
1.3 This practice shall be used in conjunction with Practice C1046 and Practice C1155 when performing in-situ measurements of heat flux on opaque building components. This practice is comparable, but not identical, to the calibration techniques described in ISO 9869-1.
1.4 This practice is not intended to determine the sensitivity of heat flux transducers used as components of heat flow meter apparatus, as in Test Method C518, or used for in-situ industrial applications, as covered in Practice C1041.
1.5 This practice does not preclude the laboratory calibration of heat flux transducers for large-scale insulation systems operated at temperatures lower or higher than that for building components. For these applications, the heat flux transducers shall be calibrated at the temperatures that the transducer will be used.
1.5.1 For cryogenic applications, the test apparatuses described in Guide C1774 are acceptable methods for calibration.
1.6 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.7 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard.
1.8 This...
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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: C1130 − 21
Standard Practice for
1
Calibration of Thin Heat Flux Transducers
This standard is issued under the fixed designation C1130; 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 1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This practice, in conjunction with either Test Method
responsibility of the user of this standard to establish appro-
C177, C518, C1114,or C1363, establishes procedures for the
priate safety, health, and environmental practices and deter-
calibration of heat flux transducers that are dimensionally thin
mine the applicability of regulatory limitations prior to use.
in comparison to their planar dimensions.
1.9 This international standard was developed in accor-
1.1.1 The thickness of the heat flux transducer shall be less
dance with internationally recognized principles on standard-
than 30 % of the narrowest planar dimension of the heat flux
ization established in the Decision on Principles for the
transducer.
Development of International Standards, Guides and Recom-
1.2 This practice describes techniques for determining the
mendations issued by the World Trade Organization Technical
sensitivity, S, of a heat flux transducer when subjected to one
Barriers to Trade (TBT) Committee.
dimensional heat flow normal to the planar surface or when
installed in a building application.
2. Referenced Documents
1.3 This practice shall be used in conjunction with Practice
2
2.1 ASTM Standards:
C1046 and Practice C1155 when performing in-situ measure-
C168 Terminology Relating to Thermal Insulation
ments of heat flux on opaque building components. This
C177 Test Method for Steady-State Heat Flux Measure-
practice is comparable, but not identical, to the calibration
ments and Thermal Transmission Properties by Means of
techniques described in ISO 9869-1.
the Guarded-Hot-Plate Apparatus
1.4 This practice is not intended to determine the sensitivity
C518 Test Method for Steady-State Thermal Transmission
of heat flux transducers used as components of heat flow meter
Properties by Means of the Heat Flow Meter Apparatus
apparatus, as in Test Method C518, or used for in-situ
C1041 Practice for In-Situ Measurements of Heat Flux in
industrial applications, as covered in Practice C1041.
Industrial Thermal Insulation Using Heat Flux Transduc-
3
1.5 This practice does not preclude the laboratory calibra-
ers (Withdrawn 2019)
tion of heat flux transducers for large-scale insulation systems
C1044 Practice for Using a Guarded-Hot-PlateApparatus or
operated at temperatures lower or higher than that for building
Thin-Heater Apparatus in the Single-Sided Mode
components. For these applications, the heat flux transducers
C1046 Practice for In-Situ Measurement of Heat Flux and
shall be calibrated at the temperatures that the transducer will
Temperature on Building Envelope Components
be used.
C1114 Test Method for Steady-State Thermal Transmission
1.5.1 For cryogenic applications, the test apparatuses de-
Properties by Means of the Thin-Heater Apparatus
scribedinGuideC1774areacceptablemethodsforcalibration.
C1155 Practice for Determining Thermal Resistance of
Building Envelope Components from the In-Situ Data
1.6 The text of this standard references notes and footnotes
C1363 Test Method for Thermal Performance of Building
which provide explanatory material. These notes and footnotes
Materials and Envelope Assemblies by Means of a Hot
(excluding those in tables and figures) shall not be considered
Box Apparatus
as requirements of the standard.
C1774 GuideforThermalPerformanceTestingofCryogenic
1.7 Units—The values stated in SI units are to be regarded
Insulation Systems
as standard. The values given in parentheses are provided for
information only and are not considered standard.
1 2
This practice is under the jurisdiction of ASTM Committee C16 on Thermal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Measurement. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Sept. 1, 2021. Published September 2021. Originally the ASTM website.
3
approved in 1989. Last previous edition approved in 2017 as C1130 – 17. DOI: The last approved version of this
...
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: C1130 − 17 C1130 − 21
Standard Practice for
1
Calibration of Thin Heat Flux Transducers
This standard is issued under the fixed designation C1130; 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 practice, in conjunction with either Test Method C177, C518, C1114, or C1363, establishes procedures for the calibration
of heat flux transducers that are dimensionally thin in comparison to their planar dimensions.
1.1.1 The thickness of the heat flux transducer shall be less than 30 % of the narrowest planar dimension of the heat flux
transducer.
1.2 This practice describes techniques for determining the sensitivity, S, of a heat flux transducer when subjected to one
dimensional heat flow normal to the planar surface or when installed in a building application.
1.3 This practice shall be used in conjunction with Practice C1046 and Practice C1155 when performing in-situ measurements of
heat flux on opaque building components. This practice is comparable, but not identical, to the calibration techniques described
in ISO 9869-1.
1.4 This practice is not intended to determine the sensitivity of heat flux transducers used as components of heat flow meter
apparatus, as in Test Method C518, or used for in-situ industrial applications, as covered in Practice C1041.
1.5 This practice does not preclude the laboratory calibration of heat flux transducers for large-scale insulation systems operated
at temperatures lower or higher than that for building components. For these applications, the heat flux transducers shall be
calibrated at the temperatures that the transducer will be used.
1.5.1 For cryogenic applications, the test apparatuses described in Guide C1774 are acceptable methods for calibration.
1.6 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.7 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for
information only and are not considered standard.
1.8 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
This practice is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal Measurement.
Current edition approved Sept. 1, 2017Sept. 1, 2021. Published October 2017September 2021. Originally approved in 1989. Last previous edition approved in 20122017
as C1130 – 07 (2012).C1130 – 17. DOI: 10.1520/C1130-17.10.1520/C1130-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1130 − 21
1.9 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
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C1041 Practice for In-Situ Measurements of Heat Flux in Industrial Thermal Insulation Using Heat Flux Transducers
3
(Withdrawn 2019)
C1044 Practice for Using a Guarded-Hot-Plate Apparatus or Thin-Heater Apparatus in the Single-Sided Mode
C1046 Practice for In-Situ Measurement of Heat Flux and Temperature on Building Envelope Components
C1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus
C1155 Practice for Determining Thermal Resistance of Building Envelope Components from the In-Situ Data
C1363 Test Method for Thermal Performance of Building Materials and Envelope As
...
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: C1130 − 21
Standard Practice for
1
Calibration of Thin Heat Flux Transducers
This standard is issued under the fixed designation C1130; 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 1.8 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This practice, in conjunction with either Test Method
responsibility of the user of this standard to establish appro-
C177, C518, C1114, or C1363, establishes procedures for the
priate safety, health, and environmental practices and deter-
calibration of heat flux transducers that are dimensionally thin
mine the applicability of regulatory limitations prior to use.
in comparison to their planar dimensions.
1.9 This international standard was developed in accor-
1.1.1 The thickness of the heat flux transducer shall be less
dance with internationally recognized principles on standard-
than 30 % of the narrowest planar dimension of the heat flux
ization established in the Decision on Principles for the
transducer.
Development of International Standards, Guides and Recom-
1.2 This practice describes techniques for determining the
mendations issued by the World Trade Organization Technical
sensitivity, S, of a heat flux transducer when subjected to one
Barriers to Trade (TBT) Committee.
dimensional heat flow normal to the planar surface or when
installed in a building application.
2. Referenced Documents
1.3 This practice shall be used in conjunction with Practice
2
2.1 ASTM Standards:
C1046 and Practice C1155 when performing in-situ measure-
C168 Terminology Relating to Thermal Insulation
ments of heat flux on opaque building components. This
C177 Test Method for Steady-State Heat Flux Measure-
practice is comparable, but not identical, to the calibration
ments and Thermal Transmission Properties by Means of
techniques described in ISO 9869-1.
the Guarded-Hot-Plate Apparatus
1.4 This practice is not intended to determine the sensitivity
C518 Test Method for Steady-State Thermal Transmission
of heat flux transducers used as components of heat flow meter
Properties by Means of the Heat Flow Meter Apparatus
apparatus, as in Test Method C518, or used for in-situ
C1041 Practice for In-Situ Measurements of Heat Flux in
industrial applications, as covered in Practice C1041.
Industrial Thermal Insulation Using Heat Flux Transduc-
3
1.5 This practice does not preclude the laboratory calibra-
ers (Withdrawn 2019)
tion of heat flux transducers for large-scale insulation systems
C1044 Practice for Using a Guarded-Hot-Plate Apparatus or
operated at temperatures lower or higher than that for building
Thin-Heater Apparatus in the Single-Sided Mode
components. For these applications, the heat flux transducers
C1046 Practice for In-Situ Measurement of Heat Flux and
shall be calibrated at the temperatures that the transducer will
Temperature on Building Envelope Components
be used.
C1114 Test Method for Steady-State Thermal Transmission
1.5.1 For cryogenic applications, the test apparatuses de-
Properties by Means of the Thin-Heater Apparatus
scribed in Guide C1774 are acceptable methods for calibration.
C1155 Practice for Determining Thermal Resistance of
Building Envelope Components from the In-Situ Data
1.6 The text of this standard references notes and footnotes
C1363 Test Method for Thermal Performance of Building
which provide explanatory material. These notes and footnotes
Materials and Envelope Assemblies by Means of a Hot
(excluding those in tables and figures) shall not be considered
Box Apparatus
as requirements of the standard.
C1774 Guide for Thermal Performance Testing of Cryogenic
1.7 Units—The values stated in SI units are to be regarded
Insulation Systems
as standard. The values given in parentheses are provided for
information only and are not considered standard.
1 2
This practice is under the jurisdiction of ASTM Committee C16 on Thermal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Measurement. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Sept. 1, 2021. Published September 2021. Originally the ASTM website.
3
approved in 1989. Last previous edition approved in 2017 as C1130 – 17. DOI: The last approved version of this historical standard is referenced on
10.1520/C1130-21. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO B
...
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