This standard is formulated based on the ZDG series food vacuum freeze-drying equipment technology transferred by the Russian All-Russian Poultry Processing Industry Scientific Research Institute. The parameter indicators refer to the performance indicators of the same equipment from the Danish ATLAS Industrial Company. This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of intermittent food vacuum freeze-drying equipment. This standard applies to intermittent food vacuum freeze-drying equipment. Continuous freeze-drying equipment and non-stacked freeze-drying equipment may refer to this standard. This standard was first released in June 2001.