[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

[Ryan Santiago]

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We used to evaluate our method RSD through method validation then compare this with published standards.

We did 30+ runs of a control sample over several days then evaluate the repeatability and reproducibility, RSD, among other parameters. Some samples have different RSD from published standards due to matrix difference, other factors, but since we get comparable RSD and acceptable recovery (spike) from the run, we assume this to be the acceptable RSD for those specific samples.

I hope this answers your question

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