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Standard Reference Materials. SRM 1747: tin freezing-point cell and SRM 1748: zinc freezing-point cell.

Author(s) : NIST, STROUSE G. F., INCE A. T.

Type of monograph: Other

Summary

The NIST Special Publication 260 Series is dedicated to the dissemination of information on different phases of the preparation, measurement, certification, and use of NIST SRMs. The freezing points of tin and zinc are defining fixed points of the International Temperature Scale of 1990 (ITS-90). Realization of these freezing points is performed using fixed-point cells containing high-purity metal. The five Sn and Zn freezing-point cells constituting SRM 1747 and 1748, respectively, have been constructed and certified as suitable for use in the realization of the freezing-point temperatures of Sn and Zn for the ITS-90. The document describes the methods used for the construction of the SRM Sn and SRM Zn freezing-point cells and their certification.

Details

  • Original title: Standard Reference Materials. SRM 1747: tin freezing-point cell and SRM 1748: zinc freezing-point cell.
  • Record ID : 1998-3269
  • Languages: English
  • Subject: Regulation
  • Publication: Us department of commerce, nist (national institute of standards and technology) - United states/United states
  • Publication date: 1997/08
  • Collection:
  • Source: Source: NIST SP 260-127; 65 p. (21.5 x 28); fig.; tabl.; append.
  • Document available for consultation in the library of the IIR headquarters only.

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