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Why does the pharmaceutical industry use negative pressure weighing benches?
Why does the pharmaceutical industry use negative pressure weighing benches?A weighing table is a kind of special local purification equipment for pharmaceutical, cosmetic, microbiological research scientific experiments, etc. The weighing table provides a vertical unidirectional airflow for the equipment through the fans, accurate detection of peripheral sensors, and an internal intelligent control program to control the frequency conversion and speed regulation, in which part of the clean air is circulated in the working area and part of it is discharged to the nearby areas to generate negative pressure in the working area and to prevent cross-contamination, which is used to ensure the high cleanliness of the working environment. It is used to ensure a high degree of cleanliness in the working environment.Pharmaceutical industry preparations for the weighing of raw materials and auxiliary materials, the reason why the negative pressure weighing table is mainly to prevent the spread of dust, to avoid causing cross-contamination. In addition to the weighing and measurement of pharmaceutical raw materials, a negative pressure weighing table is also widely used in antibiotic sampling, hormone drug processing, etc., regardless of whether the drug is powder or liquid. Negative pressure weighing table is equipped with new liquid tank type high-efficiency filter, which is more sealed and meets the requirements of the new GMP, the automatic frequency conversion system for wind speed detection, combined with the new mean-flow membrane technology to make the wind speed in the working area in the ideal constant state, the PAO dust generating port and DOP detection port to ensure the integrity of the filter cartridge, and the differential pressure table to remind the high-efficiency filter use status. Independent research and development of an intelligent control system with a large screen LCD touchscreen interface, wind speed, differential pressure, colony count real-time monitoring, reduce the maintenance of maintenance personnel to maintain the amount of the overall increase in work efficiency, the operation is more humane. The working principle of negative pressure weighing table room will be air through the primary filter, and intermediate filter, pressed by the centrifugal fan into the static pressure box, and then through the high-efficiency filter will be the airflow diffusion to the air surface blowing out, the formation of vertical unidirectional airflow, to protect the operator and to prevent the contamination of medicines. The operation area of the weighing hood discharges a certain amount of circulating air to maintain the negative pressure state of the weighing table to avoid contamination of the environment and the effect of cross-contamination of drugs. The new version of GMP on the pharmaceutical industry control has put forward higher requirements, especially in the control of raw and auxiliary materials and achieving the clean level of static and dynamic testing and other aspects of the increase in the requirements of equipment and facilities, so the pharmaceutical industry on the negative pressure weighing table demand is also increasing. |
