NCSL Z540.1 Handbook
This Handbook is an informational guide intended to enhance the user’s understanding of the requirements of the American National Standard, “Calibration Laboratories and Measuring and Test Equipment -- General Requirements," ANSI/NCSL Z540-1-1994, and to assist in providing for the uniform evaluation of a laboratory’s compliance to the individual requirements of the Standard. This Handbook shall not modify, add to, nor subtract from any of the requirements of ANSI/NCSL Z540-1-1994.
This Handbook follows the format used in ANSI/NCSL Z540-1-1994 and, consequently, is organized in two parts.
Part I of the Handbook deals with the general requirements. As stated in the Standard, a calibration laboratory must demonstrate that it operates in compliance with these requirements if it is to be recognized as competent to carry out specific calibrations. The general requirements also pertain to the development and implementation of the laboratory’s quality system.
Part II deals with the quality assurance requirements for a Supplier’s system to control the accuracy of the measuring and test equipment used to assure that the supplies and services provided comply with prescribed requirements.