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NIST ITS-90 Thermocouple Database - SRD 60

Metadata Updated: September 30, 2025

This database reproduces a subset of the tables and reference functions of NIST Monograph 175, 'Temperature Electromotive Force Reference Functions and Tables for the Letter-Designated Thermocouple Types Based on the ITS-90'. All temperatures used by this database are given on the International Temperature Scale of 1990 (ITS-90), and all emf values are given in units of the 1990 SI volt. Reference functions and tables are given for the eight letter-designated thermocouple types: noble-metal types B, R, and S; and base-metal types E, J, K, N, and T. The letter designations used in this database follow the recommendations of the Instrumentation, Systems, and Automation Society (ISA) and the American Society for Testing and Materials (ASTM). Version 2.0.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date September 30, 2025
Data Update Frequency irregular

Metadata Source

Harvested from Commerce Non Spatial Data.json Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date September 30, 2025
Publisher National Institute of Standards and Technology
Maintainer
Identifier ECBCC1C1302A2ED9E04306570681B10748
Language en
Data Last Modified 2000-07-01 00:00:00
Category Standards:Reference data
Public Access Level public
Data Update Frequency irregular
Bureau Code 006:55
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id f08baaf7-80c6-4f45-bc99-f294dd745bf8
Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
Harvest Source Title Commerce Non Spatial Data.json Harvest Source
Homepage URL https://its90.nist.gov
License https://www.nist.gov/open/license
Program Code 006:052
Source Datajson Identifier True
Source Hash 5c945d716e9fbdb859be531c978c8ca31b9f6355c377f3187443a5badf9b288d
Source Schema Version 1.1

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