JJF 1815-2020 in English

This document provides detailed requirements and procedures for the calibration of II-class biosafety cabinets. It outlines the technical parameters that need to be verified, the methods for testing performance, and the conditions under which calibration should be conducted. The document is applicable to various types of II-class biosafety cabinets used in laboratories and other relevant facilities. It specifies the calibration cycle, the qualifications of personnel involved in the calibration process, and the documentation requirements to ensure traceability and accuracy of measurements. The content is structured to facilitate the implementation of a consistent and reliable calibration process, ensuring the safety and effectiveness of the equipment throughout its service life.