ASTM E 452 : 2002 : R2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Calibration of Refractory Metal Thermocouples Using a Radiation Thermometer
Hardcopy , PDF
30-08-2023
English
06-04-2018
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 14.03, 2018 Defines the calibration of refractory metal thermocouples using a radiation thermometer as the standard instrument.
| Committee |
E 20
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| DocumentType |
Test Method
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| Pages |
14
|
| ProductNote |
Reconfirmed 2018
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This test method covers the calibration of refractory metal thermocouples using a radiation thermometer as the standard instrument. This test method is intended for use with types of thermocouples that cannot be exposed to an oxidizing atmosphere. These procedures are appropriate for thermocouple calibrations at temperatures above 800°C (1472°F).
1.2The calibration method is applicable to the following thermocouple assemblies:
1.2.1Type 1—Bare-wire thermocouple assemblies in which vacuum or an inert or reducing gas is the only electrical insulating medium between the thermoelements.
1.2.2Type 2—Assemblies in which loose fitting ceramic insulating pieces, such as single-bore or double-bore tubes, are placed over the thermoelements.
1.2.3Type 2A—Assemblies in which loose fitting ceramic insulating pieces, such as single-bore or double-bore tubes, are placed over the thermoelements, permanently enclosed and sealed in a loose fitting metal or ceramic tube.
1.2.4Type 3—Swaged assemblies in which a refractory insulating powder is compressed around the thermoelements and encased in a thin-walled tube or sheath made of a high melting point metal or alloy.
1.2.5Type 4—Thermocouple assemblies in which one thermoelement is in the shape of a closed-end protection tube and the other thermoelement is a solid wire or rod that is coaxially supported inside the closed-end tube. The space between the two thermoelements can be filled with an inert or reducing gas, or with ceramic insulating materials, or kept under vacuum.
1.3This 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.
1.4This 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.
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| ASTM E 220 : 2019 | Standard Test Method for Calibration of Thermocouples By Comparison Techniques |
| ASTM E 344 : 2020 | Terminology Relating to Thermometry and Hydrometry |
| ASTM E 696 : 2007 : R2018 | Standard Specification for Tungsten-Rhenium Alloy Thermocouple Wire |
| ASTM E 1256 : 2015 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 563 : 1997 | Standard Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature |
| ASTM E 344 : 2018 | Terminology Relating to Thermometry and Hydrometry |
| ASTM E 1256 : 2010 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 344 : 2001 : REV A | Terminology Relating to Thermometry and Hydrometry |
| ASTM E 1256 : 2017 : REDLINE | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 2011 : REV A | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 1995 : R2001 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 1995 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 563 : 2022 | Standard Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature |
| ASTM E 344 : 2016-12 | TERMINOLOGY RELATING TO THERMOMETRY AND HYDROMETRY |
| ASTM E 563 : 2011 : R2016 | Standard Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature |
| ASTM E 1256 : 2011 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 2017 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 1995 : R2007 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1256 : 2017 : R2022 | Standard Test Methods for Radiation Thermometers (Single Waveband Type) |
| ASTM E 1751 : 2000 | Standard Guide for Temperature Electromotive Force (emf) Tables for Non-Letter Designated Thermocouple Combinations (Withdrawn 2009) |
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