The modern production process, from the inspection of raw materials, the control of the production process, to the inspection and evaluation of the final product quality, is inseparable from various instruments and meters. In order to ensure high-quality production, it is necessary to regularly use various standard gases to verify or calibrate its instruments, especially afterContinue reading “Standard gas for calibration”
Author Archives: HCS
Preparation of standard gases with special properties
1. Preparation of standard gas with lively properties Some gases are very active and easily react with oxygen and water packaging container materials to change the concentration. These gases were previously prepared in small quantities by methods such as ampoules and saturated vapor pressure, and are not suitable for long-distance transportation and long-term storage. In theContinue reading “Preparation of standard gases with special properties”