Pipettes (pipettes) are the most common equipment in laboratories. They will appear inaccurate after being used for a long time. Clean and calibrate them in time. If the pipette needs to be used every day, it is recommended to clean and calibrate it every three months. You can use soapy water or 60% isopropyl alcohol, then rinse with distilled water and let it dry naturally. Keeping the pipette accurate should also pay attention to avoid misunderstandings in daily use.
Solid tungsten steel for drill milling cutter
Solid tungsten steel for drill milling cutter
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