Presentation on theme: "ISO-8655:2002 ISO 8655: 2002 parts 1-7 A new international standard for piston operated volumetric apparatus which addresses the needs of: –Suppliers."— Presentation transcript:
ISO 8655: 2002 parts 1-7 A new international standard for piston operated volumetric apparatus which addresses the needs of: –Suppliers quality control and issuance of suppliers declarations (QC-certificates) –Test houses and after sales services –Test equipment
Used standards Previously there were many national standards for pipettes: –BS 7532: 1991; British standard year 1991 –ASTM E (Reapproved 1997), US- standard –NCCLS; National Committee for Clinical Laboratory Standards, Proposed guideline –DIN 12650,1-6:1997; German standard which has 6 parts describing the type testing of a volumetric instrument But there was no universal international standard!
ISO 8655:2002, parts Terminology, general requirements and user requirements 2.Piston pipettes 3.Piston burettes 4.Dilutors 5.Dispensers 6.Gravimetric testing 7.Photometric testing (new 2006)
How the ISO 8655:2002 affects your work?
ISO 8655:2002 Suppliers Liability ISO 8655 defines among other things suppliers liability Suppliers should: –Provide list of the contents of the apparatus package –Provide information on sterilization –Provide instruction for care, cleaning and maintenance –Provide information on temperature range in which the apparatus can be used –Provide information on chemical resistance –Provide instructions for re-calibration –Provide delivery(Ex) conditions In addition, there are: –Requirements for marking products (both tips and pipettes) –Requirements for the features of pipettes and tips
ISO 8655:2002 Users liability: The user should establish a regular testing routine for their pipettes with regard to –accuracy requirements of the application –frequency of use –number of operations using the pipette –nature of the liquid dispensed –acceptable maximum permissible errors established by user User should verify that the pipette is resistant to the liquid dispensed. This can be done by requesting information on chemical resistance from manufacturer or by conducting tests
ISO 8655:2002 Requirements for Calibration Requirements for test equipment (test apparatus) Requirements for test liquid Requirements for test conditions Requirements for test procedure (directly and indirectly): –Volumes to be tested –Number of measurements, –Weighting procedure Evaluation: how to calculate and analyze the results Requirements for a calibration report Errors affecting the performance of the pipette Terms and definitions regarding piston operated pipettes and their testing
ISO 8655:2002 Very important: ISO 8655 states that the given suppliers declaration or the certificate of conformity is valid to the COMPLETE unit, which includes the pipette and tip used, as a combination. Please note: Type specs of a pipette manufacturer are valid only when the original manufacturers tips are used When other than original tips are used, then the performance level of the NEW combination must be evaluated
ISO 8655:2002 Every pipette distributor and pipette service company must be familiar with ISO 8655:2002 standard The standard can be ordered from or from your local standards association