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You should clearly define the workflow before starting work. By doing so, you can ensure that
you do not have to pull out your hands from the enclosure during the workflow.
a1-envirosciences recommends creating your own SOP.
Create a material list so that you can ensure that everything you need for this process (e.g.
vessels and reagents) is available in the ST1 safety weighing enclosure before starting work.
Remember to plan enough time for your work processes! Precise and accurate
weighing requires concentration and calmness. It takes 2-3 times as much
working time as weighing without a safety weighing enclosure. Product
protection is only ensured if the room air is appropriately conditioned.
If there is a draught when opening the laboratory doors, mark these doors so that they are
not opened during the weighing process if possible. For safety reasons, you should not be
alone in the laboratory during the weighing process.
Check your protective equipment for completeness. Pull the arm sleeves over the first
protective glove and the sleeve of your gown. Then, put on the second protective glove. The
glove should be long enough so that you can still comfortably pull it over the lower edge of
the arm sleeves.
If at all possible, dissolve substances already in the ST1 safety weighing enclosure.
Remove material and waste from the ST1 safety weighing enclosure through:
o The waste system on the side
o The front opening; it must be noted that everything must be thoroughly cleaned first
Leave the workplace clean and dispose of waste appropriately, see chapter "Safe
disposal of waste"
For more information or in-depth training in safe weighing practice, please contact
a1-envirosciences or attend a workshop offered by a1-envirosciences.
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