To ensure the preservation and quality of goods, chemical pest control is often required. Phosphine (PH3) e.g. is used especially in sea-transport of grains in containers. Tablets containing aluminium- or magnesium phosphide are combined in small sockets or long sleeves. The phosphide reacts with the moisture in the air of the container to produce phosphine. Mostly, the containers are holding silica gel for drying the container in order to prevent too much formation of phosphine during the transport. The intention is that the vermin-hostile environment remains active during the trip only, such that the vessel can be unloaded efficiently at the place of destination. Often however, PH3 levels at the destination still turn out to be too high, and tedious, hazardous, and costly measurements have to be carried out on a regular basis in order to ensure that the PH3 concentration has dropped to an acceptable level.
A crucial moment then is the opening of the container. The remaining phosphide starts forming phosphine when humidity enters the container from outside. The same reaction takes place for loads in the holds of ships at the presence of remaining phosphide. Especially this moment leads to acute intoxications. After this acute moment continuous exposure may take place due to the absorption of phosphine to the clothes of the person. Sensite’s Wireless Phosphine Probe eliminates these challenges, enabling wireless monitoring from a safe distance. The GP47/11PH3 Wireless Phosphine probe for in product measuring, is part of our SafeHost Bulk Monitoring System: a superior wireless monitoring solution to ensure quality and safety control of perishable goods during transport and storage.
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