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ASTM E2181/E2181M-06

Historical Revision

Standard Specification for Compacted Mineral-Insulated, Metal-Sheathed, Noble Metal Thermocouples and Thermocouple Cable

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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.


SDO ASTM: ASTM International
Document Number E2181
Publication Date May 1, 2006
Language en - English
Page Count 9
Revision Level 06
Supercedes
Committee E20.04
Publish Date Document Id Type View
Nov. 1, 2024 E2181_E2181M-24 Revision
Sept. 1, 2019 E2181_E2181M-19 Revision
Nov. 1, 2011 E2181_E2181M-11 Revision
May 1, 2006 E2181_E2181M-06E01 Revision
May 1, 2006 E2181_E2181M-06 Revision
Dec. 10, 2001 E2181_E2181M-01 Revision