ASTM E2181/E2181M-11
(Specification)Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal Thermocouples and Thermocouple Cable
Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal Thermocouples and Thermocouple Cable
ABSTRACT
This specification establishes the requirements for materials and manufacturing, dimensions, inspection and testing, and processing of compacted, mineral-insulated, metal-sheathed Type S (platinum-10 % rhodium versus platinum), Type R (platinum-13 % rhodium versus platinum), and Type B (platinum-30 % rhodium versus platinum-6 % rhodium) noble metal thermocouples, and thermocouple cables with at least one noble metal thermoelement pair. This specification describes both the required processing and testing requirements, and also the optional supplementary testing and quality assurance requirements. Additionally, provisions are made herein for selecting the type of noble metal thermocouple or thermoelements, either magnesia (MgO) or alumina (Al2O3) insulation, and a noble metal alloy or other alternate heat-resistant sheath material. Provisions are also made for selecting a thermocouple measuring junction style and for a transition or termination.
SCOPE
1.1 This specification establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed, Type S (platinum-10 % rhodium versus platinum), Type R (platinum-13 % rhodium versus platinum), and Type B (platinum-30 % rhodium versus platinum-6 % rhodium) noble metal thermocouples. This specification also establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed cable with at least one noble metal thermoelement pair.
1.2 This specification describes both the required processing and testing requirements and also the optional supplementary testing and quality assurance requirements.
1.3 Provisions are made for selecting the type of noble metal thermocouple or thermoelements, either magnesia (MgO) or alumina (Al 2O3) insulation, and a noble metal alloy or other alternate heat-resistant sheath material. Provisions are also made for selecting a thermocouple measuring junction configuration and for a transition or termination.
1.4 The values stated in inch-pound units or SI (metric) units may be regarded separately as standard. The values stated in each system are not the exact equivalents, and each system shall be used independently of the other.
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 requirements prior to use.
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Designation: E2181/E2181M −11
Standard Specification for
Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal
1
Thermocouples and Thermocouple Cable
ThisstandardisissuedunderthefixeddesignationE2181/E2181M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2.1 The following documents of the latest issue form a part
1.1 This specification establishes dimensional and material
of this specification to the extent specified herein. In the event
requirementsforcompacted,mineral-insulated,metal-sheathed
of a conflict between this specification and other specifications
(MIMS), Type S (platinum-10% rhodium versus platinum),
referenced herein, this specification shall take precedence.
Type R (platinum-13% rhodium versus platinum), andType B
2
(platinum-30% rhodium versus platinum-6% rhodium) noble
2.2 ASTM Standards:
metal thermocouples. This specification also establishes di-
A213/A213MSpecification for Seamless Ferritic and Aus-
mensional and material requirements for compacted MIMS
tenitic Alloy-Steel Boiler, Superheater, and Heat-
cable with at least one noble metal thermoelement pair.
Exchanger Tubes
A249/A249MSpecification for Welded Austenitic Steel
1.2 Thisspecificationdescribesboththerequiredprocessing
Boiler, Superheater, Heat-Exchanger, and Condenser
and testing requirements and also the optional supplementary
Tubes
testing and quality assurance requirements.
A269Specification for Seamless and Welded Austenitic
1.3 Provisions are made for selecting the type of noble
Stainless Steel Tubing for General Service
metal thermocouple or thermoelements, either magnesia
A632Specification for Seamless and Welded Austenitic
(MgO) or alumina (Al O ) insulation, and a noble metal alloy
2 3 Stainless Steel Tubing (Small-Diameter) for General Ser-
or other alternate heat-resistant sheath material. Provisions are
vice
also made for selecting a thermocouple measuring junction
B163Specification for Seamless Nickel and Nickel Alloy
style and for a transition or termination.
Condenser and Heat-Exchanger Tubes
B167Specification for Nickel-Chromium-IronAlloys (UNS
1.4 The values stated in inch-pound units or SI (metric)
N06600, N06601, N06603, N06690, N06693, N06025,
unitsmayberegardedseparatelyasstandard.Thevaluesstated
N06045, and N06696), Nickel-Chromium-Cobalt-
in each system are not the exact equivalents, and each system
Molybdenum Alloy (UNS N06617), and Nickel-Iron-
shall be used independently of the other.
Chromium-TungstenAlloy (UNS N06674) Seamless Pipe
1.5 This standard does not purport to address all of the
and Tube
safety concerns, if any, associated with its use. It is the
B516SpecificationforWeldedNickel-Chromium-IronAlloy
responsibility of the user of this standard to establish appro-
(UNS N06600, UNS N06601, UNS N06603, UNS
priate safety and health practices and determine the applica-
N06025, UNS N06045, UNS N06690, and UNS N06693)
bility of regulatory requirements prior to use.
Tubes
1.6 This international standard was developed in accor-
E165Practice for Liquid Penetrant Examination for General
dance with internationally recognized principles on standard-
Industry
ization established in the Decision on Principles for the
E220Test Method for Calibration of Thermocouples By
Development of International Standards, Guides and Recom-
Comparison Techniques
mendations issued by the World Trade Organization Technical
E230Specification and Temperature-Electromotive Force
Barriers to Trade (TBT) Committee.
(EMF) Tables for Standardized Thermocouples
E344Terminology Relating to Thermometry and Hydrom-
etry
1
This specification is under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and is the direct responsibility of Subcommittee E20.12
2
on Thermocouples - Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2011. Published December 2011. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2001. Last previous edition approved in 2006 as E2181/ Standards volume information, refer to the standard’s Document Summary page on
E2181M–06E01. DOI: 10.1520/E2181_E2181M-11. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2181/E2181M − 11
FIG. 2 Examples of Alternating Configurations
FIG. 1 Examples of Adjacent Configurations
3.2.4 isolated ungrounded junction, n—measuring junction
E608/E608MSpecification for Mineral-Insulated, Metal-
within the
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
ϵ1
Designation:E2181/E2181M–06 Designation: E2181/E2181M – 11
Standard Specification for
Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal
1
Thermocouples and Thermocouple Cable
ThisstandardisissuedunderthefixeddesignationE2181/E2181M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (ϵ) indicates an editorial change since the last revision or reapproval.
1
ϵ NOTE—Editorial changes were made in 1.3 and 5.2.1 in November 2006.
1. Scope
1.1 This specification establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed
(MIMS), Type S (platinum-10 % rhodium versus platinum), Type R (platinum-13 % rhodium versus platinum), and Type B
(platinum-30 % rhodium versus platinum-6 % rhodium) noble metal thermocouples. This specification also establishes dimen-
sional and material requirements for compacted, mineral-insulated, metal-sheathedcompacted MIMS cable with at least one noble
metal thermoelement pair.
1.2 This specification describes both the required processing and testing requirements and also the optional supplementary
testing and quality assurance requirements.
1.3Provisions1.3 Provisions are made for selecting the type of noble metal thermocouple or thermoelements, either magnesia
(MgO) or alumina (Al O ) insulation, and a noble metal alloy or other alternate heat-resistant sheath material. Provisions are also
2 3
made for selecting a thermocouple measuring junction style and for a transition or termination.
1.4 The values stated in inch-pound units or SI (metric) units may be regarded separately as standard. The values stated in each
system are not the exact equivalents, and each system shall be used independently of the other.
1.5 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
requirements prior to use.
2. Referenced Documents
2.1 The following documents of the latest issue form a part of this specification to the extent specified herein. In the event of
a conflict between this specification and other specifications referenced herein, this specification shall take precedence.
2
2.2 ASTM Standards:
A213/A213M Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
A249/A249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A632 Specification for Seamless and WeldedAustenitic Stainless Steel Tubing (Small-Diameter)(Small-Diameter) for General
Service
B163 Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
B167 Specification for Nickel-Chromium-Iron Alloys (UNS(UNS N06600, N06601, N06603, N06690, N06693, N06025,
N06045, and N06696),N06696), Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617),(UNS N06617), and Nickel-
Iron-Chromium-Tungsten Alloy (UNS N06674)(UNS N06674) Seamless Pipe and Tube
B516 Specification forWelded Nickel-Chromium-IronAlloy (UNS(UNS N06600, UNS N06601, UNS N06603, UNS N06025,
UNS N06045, UNS N06690, and UNS N06693)N06693) Tubes
E165 Practice for Liquid Penetrant Examination for General Industry
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
E344 Terminology Relating to Thermometry and Hydrometry
E608/E608M Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouples
1
This specification is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.04 on
Thermocouples.
Current edition approved MayNov. 1, 2006.2011. Published May 2006.December 2011. Originally approved in 2001. Last previous edition approved in 20012006 as
E2181/E2181M – 06E01. DOI: 10.1520/E2181_E2181M-06E01.10.1520/E2181_E2181M-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM 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 Conshohoc
...
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