This part of ISO 8655 specifies
— metrological requirements,
— maximum permissible errors,
— requirements for marking and
— information to be provided for users,
for dispensers. It applies to dispensers with nominal volumes from 1 μl up to 200 ml, designed to deliver their volume (Ex).
NOTE General requirements and definitions of terms for piston-operated volumetric apparatus are given in ISO 8655-1. The gravimetric reference measurement procedure for the determination of volume is given in ISO 8655-6. The photometric reference measurement procedure for the determination of volume is given in ISO 8655-8. Alternative methods for the determination of volume are described in ISO 8655-7. For safety requirements of electrically powered dispensers, see regional or national safety standards.