Working and Check Standards for NIST Surface and Microform Measurements

Published

January 1, 1995

Author(s)

Jun-Feng Song, Theodore V. Vorburger

Abstract

Different working standards and check standards are used in the NIST surface and microform measurement laboratory for calibrating instruments, establishing measurement traceability and control measurement uncertainty. The basic requirements for these standards include geometric requirements, material stability and calibration uncertainty. In this paper, the definitions, characteristics and utilizations of working and check standards are described. Some examples are used for demonstrating the selection and utilization of working and check standards in NIST surface and microform measurements. One example comes from the microform measurements of the Rockwell diamond indenters. The check standards have been successfully used to establish measurement traceability, reduced measurement uncertainty of the least squares radius from micrometers to sub-micrometers, and prevented an unsuitable diamond indenter from being accepted as a national Rockwell hardness calibration indenter.

Proceedings Title

Proceedings of NCSL Workshop & Symposium

Conference Dates

January 1, 1995

Conference Location

Dallas, TX

Pub Type

Conferences

Keywords

check standards, microform, roughness, traceability, uncertainty, working standards

Citation

Song, J. and Vorburger, T. (1995), Working and Check Standards for NIST Surface and Microform Measurements, Proceedings of NCSL Workshop & Symposium, Dallas, TX (Accessed April 19, 2024)