TS EN ISO 8655-1/AC

TS EN ISO 8655-1/AC is the correction record for TS EN ISO 8655-1, which addresses the common terminology, general characteristics, and user recommendations for piston-operated volumetric apparatus. This subject matters because it frames how piston-driven devices such as pipettes, burettes, dilutors, and dispensers are named and understood in routine laboratory work.

Technical context for piston-operated volumetric devices

Piston-operated volumetric apparatus measures, aspirates, or dispenses liquid volumes by the movement of a piston inside a cylinder. In laboratory practice, these instruments are used for handling small and repeatable volumes, making dilutions, and delivering measured amounts of liquid. As a terminology standard, this part clarifies the concepts used across the device family so that users and manufacturers can apply the same terms consistently.

Main concepts covered by this part

• Piston pipettes are used to take up and transfer defined liquid volumes.
• Piston burettes are used for controlled delivery of volumes, including titration-related work.
• Dilutors support preparation tasks by combining measured volumes with appropriate dilution.
• Dispensers represent the device class intended for repeated dosing and liquid delivery.
• The user-recommendations aspect provides general guidance for correct and consistent handling.

In general technical terms, performance in this device family depends heavily on calibration, technique, compatibility with consumables such as tips, and consistent handling by the user. Defining the terms and general characteristics therefore does more than standardize language: it helps distinguish related device types and supports proper selection and use in the laboratory.