JJG 957-2015 in English

This document outlines the requirements and procedures for the verification of logical analyzers. It provides detailed specifications for the performance characteristics, calibration methods, and testing procedures that must be followed to ensure the accuracy and reliability of these instruments. The content includes definitions of key terms, technical requirements, verification items, and the conditions under which the verification should be conducted. Additionally, it specifies the documentation and reporting requirements for the verification process. The document is structured to facilitate the implementation of a systematic approach to the verification of logical analyzers, ensuring consistency and traceability in measurement results. It serves as a reference for metrology personnel involved in the verification and calibration of logical analyzers.