Verification of volumetric glasswares

[Training of Young Scientists]

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Hi Roiji, the verification can vary based on the quality requirement of individual labs. Would you please provide what kind of lab it is? ISO 17025, GLP, or research lab, etc.?

[Roiji Muta]

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17025 lab.

[Ryan Santiago]

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In my previous lab we used to verify glassware volume using gravimetric method (analytical balance).

For pipettes, we dispense type 0 water equilibriated at 25.0 C into a tared container and record the weight

For vol flasks, we take tared weight after thorough air-drying and measure the filled weight with 25C water.

For burettes, we dispense specific volumes of water in a tared container.

would love to hear how other laboratories did their verification

[Roiji Muta]

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Hi Ryan!

 

Appreciate your reply, can you share how your lab process the data and conclude that the glassware is within the tolerance specified to it ?  Thank you!

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