Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • NIST ITS-90 Thermocouple Database - SRD 60

    Metadata Updated: July 9, 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.

    Downloads & Resources

    Dates

    Metadata Created Date March 11, 2021
    Metadata Updated Date July 9, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from NIST

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 11, 2021
    Metadata Updated Date July 9, 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/data.json
    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 4ca05316-3087-4485-82bf-2016ad26f95c
    Harvest Source Id 74e175d9-66b3-4323-ac98-e2a90eeb93c0
    Harvest Source Title NIST
    Homepage URL https://its90.nist.gov
    License https://www.nist.gov/open/license
    Program Code 006:052
    Source Datajson Identifier True
    Source Hash 88b3f48de8fdafd40a9a685171a76e77317553cbe3acf9e8273866a7ec54f8a4
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.