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Significance and Use
These thermocouple combinations have been developed for specific applications by the wire manufacturer(s). If additional information is required, consult ASTM MNL 12 or one of the following thermocouple manufacturers: Carpenter Technology, Engelhard Corp. Specialty Metals Div., Hoskins Mfg. Co., Johnson Matthey, Sigmund Cohn Corp.
1.1 This guide consists of reference tables that give temperature-electromotive force (emf) relationships for special purpose, limited use, thermocouple combinations that do not have a letter designation.
1.2 Extension wire or compensating extension wires are not covered by this guide. ASTM MNL 12 or thermocouple alloy suppliers should be consulted.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E344 Terminology Relating to Thermometry and Hydrometry
E696 Specification for Tungsten-Rhenium Alloy Thermocouple Wire
ICS Number Code 17.200.20 (Temperature-measuring instruments)
ASTM E1751 / E1751M-09e1, Standard Guide for Temperature Electromotive Force (emf) Tables for Non-Letter Designated Thermocouple Combinations, ASTM International, West Conshohocken, PA, 2009, www.astm.orgBack to Top