Graduated Pipettes - Part 2 : Pipettes for which no Waiting Time is Specified

This standard establishes specific technical requirements for a specialized class of laboratory volumetric instruments known as graduated pipettes. The document focuses specifically on designs that do not incorporate a prescribed waiting period for the drainage of liquid, distinguishing them from other pipette types that require controlled timing for accurate measurement. It defines the permissible limits of error, dimensional tolerances, and material specifications necessary to ensure consistency and reliability during fluid transfer operations. The scope covers the physical characteristics and performance criteria essential for these unregulated-time pipettes used in analytical and quantitative procedures. By setting clear guidelines for manufacturing and quality control, the text provides a framework for producing instruments capable of meeting rigorous scientific standards. Adherence to these specifications ensures that measurements remain uniform across different laboratories and applications, facilitating the interchangeability of equipment and the reproducibility of experimental results. The document serves as a reference for manufacturers and testing bodies aiming to produce high-precision volumetric tools that align with established metrological principles without the constraint of timed drainage phases.