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Reliable and reproduceable liquid handling results depend crucially on the regular test and calibration of the instruments. The globally most accepted International Standardization Organization (ISO) standard that details requirements for producing and in-use control of piston-operated volumetric apparatus (POVA) is the ISO 8655. The aim of this white paper is to present the requirements for gravimetric calibration and testing of piston-operated volumetric apparatus (POVA) according to part 6 and part 7 of the ISO 8655 revised in 2022. This white paper presents the differences between calibration and testing according to chapters 6 and 7 , describes the testing method as well as testing environment, testing equipment and reporting requirements.

Bulb and graduated pipettes made of glass or plastic are common in the laboratory, especially when pipetting volumes greater than 1,000 µL. One example of graduated pipettes are serological pipettes. Plastic (disposable) serological pipettes are widely used in cell culture applications. There are multiple reasons to replace serological pipettes with Sartorius pipettes. Discover the three main reasons to switch to a Sartorius pipette.

ISO 8655:2022 contains updated requirements for producing and in-use control of piston-operated volumetric apparatus (POVA), replacing the 1st edition from 2002. ISO 8655:2022 consists of nine parts in total. Here, we describe the main points about Part 2: Pipette

Pipettes and pipette accessories are staples in most laboratory environments, from biochemistry to pharmaceuticals to beverage quality control. Because different assays have different needs in terms of equipment and technique, it is important to assess the particular set of needs required in your lab. Key requirements for most modern-day applications include: Accuracy, miminizing human errors, speed, easy-to-clean-instruments, precision, ability to decontaminate and avoiding contamination.

In this guide, Sartorius explores some factors to consider when choosing a manual or electronic pipette for microbiological analyses. Requirements for liquid handling in a microbiology lab might be different from other analytical laboratories. Here are some points to consider before committing to purchasing a pipette

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