On 4 april 2018 CALLAB Magazine published my contribution on pipette calibration. 

This paper discusses the calibration of pipette, with particular attention to the type that is used and calibrated most frequently. This is the so-called air-displacement pipette, single channel, adjustable volume pipet. The new ISO/IEC 17025, published November 2017, demands more attention to the agreement of the calibration procedure with the customer. The paper describes points that need to be agreed with the customer and calibration by the gravimetric method (weighing). The alternative calorimetric method (ISO 8655-7) is not described in this paper. Read the full article (PDF)

The Final Draft International Standard of ISO / IEC 17025 has been approved. Here are a few points for your attention.

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