Manual filling of bulk materials in powder flasks using a hand shovel

The powder flask to be filled is positioned on a balance to weigh the amount of the bulk material it will hold. The bulk material is transferred into the powder flask from a storage container using a hand shovel until the required fill quantity is reached. If the local exhaust ventilation inlet is not correctly positioned and/or the drop height is too great, dust will be released into the workplace air. If the local exhaust ventilation inlet is correctly positioned and/or the drop height is reduced, the amount of dust released into the workplace air is minimised. After they have been filled, the powder flasks are sealed and placed on a bench, ready for collection.

Filling of powder flasks with bulk materials - Engineering control - Positioning of powder flask

The video shows how workers’ exposure to dust is minimised if the powder flask to be filled is correctly positioned where a fixed local exhaust ventilation inlet has been installed.

Filling of powder flasks with bulk materials - Engineering control - Reduced drop height

The video shows how workers’ exposure to dust is minimised by using a powder funnel with a notch that reduces the drop height for the bulk material.

Filling of powder flasks with bulk materials - Engineering control - Positioning of exhaust ventilation inlet

The video shows how workers’ exposure to dust is minimised if an adjustable local exhaust ventilation inlet is correctly positioned.

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