Handling (Truck Unloading)
It is critical to be aware that sodium chlorite is often mistaken as sodium hypochlorite When arriving at a customer site, offloading sodium chlorite into a sodium hypochlorite tank or other tank with organic or acidic materials, may result in a plant evacuation or tank explosion and must be avoided by carefully adhering to the following steps.
Upon reaching its destination, the truck driver should check in with site security and approach the unloading point with all necessary documents. The driver must present the customer with documents declaring what product is being delivered, and the customer should acknowledge acceptance of the product by signing the document.
Prior to unloading, the driver and any involved personnel must ensure they’re wearing proper PPE and that all equipment is functioning correctly. Next, the driver should inspect the site to locate the site’s eyewash and safety shower. Then ensure the offloading area is up to standard for safe unloading.
The customer and driver should both note the fill line for sodium chlorite and inspect the condition of the receiving tank in order to confirm there is adequate space to receive the entire new shipment volume. It may be necessary to follow the fill line piping from its very beginning all the way to the tank to ensure sodium chlorite is being received into the proper storage tank.
Next, the customer should provide the driver with a key for the UN 1908 lock, located on the fill line. To prepare the unloading site, barricades should be set up to prevent any other vehicles from entering the premises. Wheel chocks should be placed on the truck to prevent it from rolling during unloading. After preparing the premises, the driver should provide a sample to the customer. The customer may perform tests on the sample to confirm the quality of the product prior to unloading. These samples are typically marked and retained in a safe storage area for future use.
Once the customer confirms that the product is acceptable, the driver may begin hooking up the unloading hoses and equipment. Once hooked up, the driver should double check all connection points to confirm they’re secure. To prevent even a small amount of sodium chlorite from contaminating the ground, catch basins or buckets should be placed beneath the connection points. The driver should verbally confirm whether the customer is familiar with how to shut off the equipment in case of emergency and clarify any safety-related questions or concerns the customer may have.
During unloading, the driver should remain at or nearby the shutoff valve. Once unloading is complete, buckets and spill pads should remain in place until all lines are disconnected and capped, and valves and hoses are plugged and stored. Following unloading and cleanup, wheel chocks and barriers are removed and paperwork should be finalized.