Title: Calibration of Multiple Delivery Dispensers : Guideline DKD-R 8-2
Authors: Physikalisch-Technische Bundesanstalt (PTB), The members of the DKD Technical Subcommittee Volume/Density, ISNI: 0000 0001 2186 1887
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Editor: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Resource Type: Text / Technical Requirement
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Rights: https://creativecommons.org/licenses/by-nc-nd/3.0/de/
CC by-nc-nd 3.0
Relationships: IsVariantFormOf: DOI 10.7795/550.20180201
Dates: Available: 2018-03-28
Issued: 2018-01
File: Download File (application/pdf) 408.08 kB (417875 Bytes)
MD5 Checksum: 09afbafad7cc46c0661f1f782c878207
SHA256 Checksum: a8366d79f717dd0b650966a4e98027b4e5809e3a76057c453301c932ae520f4f
Keywords: Multiple delivery dispenser ; volume of liquids ; calibration ; DIN EN ISO 8655 ; ISO/TR 20461 ; PTB ; DKD
Abstract: DKD guidelines are application documents regarding the DIN EN ISO/IEC 17025 requirements. The guidelines contain a description of the technical, process-related and the organizational procedures which accredited calibration laboratories use as a model for defining internal processes and regulations. DKD guidelines may become an essential component of the quality management manuals of calibration laboratories. By implementing the guidelines, it is ensured that the devices to be calibrated are all treated equally in the various calibration laboratories and that the continuity and verifiability of the work of the calibration laboratories are improved.

The DKD guidelines should not impede the further development of calibration procedures and processes. Deviations from guidelines as well as new procedures are allowed in agreement with the accreditation body if there are technical reasons to support this action.

The present guideline was drawn up by the Technical Committees Chemical Measurands and Material Properties / Technical Subcommittee Volume / Density in cooperation with PTB and the accredited calibration laboratories. Calibrations by accredited laboratories provide the user with the security of reliable measuring results, increase the confidence of customers, enhance competitiveness in the national and international markets, and serve as metrological basis for the monitoring of measuring and test equipment within the framework of quality assurance measures.

In preparation for the guideline, two pilot studies were carried out in the form of interlaboratory comparisons. The first pilot study (Interlaboratory comparison for the calibration of manual dispensers (direct displacement), reference number V/0006/12) served to establish an extensive data pool and included measurements by accredited calibration laboratories, each with two mechanical and two electronic multiple delivery dispensers. A subsequent interlaboratory comparison (Interlaboratory comparison for calibration of manual dispensers (direct displacement) Part 2 / focus on tip change, reference number V/0012/14) dealt with the influence of changing the dispenser tip; the measurements were carried out using the same calibration items.

This guideline was drawn up by the Technical Committee Chemical Measurands and Material Properties and approved by the Board of the DKD.
Citation: Guideline DKD-R 8-2 Calibration of Multiple Delivery Dispensers, Edition 01/2018, Revision 0, Physikalisch-Technische Bundesanstalt, Braunschweig and Berlin. DOI: https://10.7795/550.20180313