A calibrator for the determination of the erythrocyte concentration in electronic blood cell counting.
A stable calibrator, suitable for the quality control of electronic counting of erythrocytes, has been developed.  The assigned concentration is determined by the cooperation of six laboratories using various types of blood cell counting instruments. The performance of the instruments was checked prior to operation. If required, corrections were applied, and deviations were taken into account.  The suitability of the calibrator was tested in practice during a period of several years.  The applicability of the preparation as a calibrator for use in routine practice was tested in 14 laboratories.
Helleman
P W
PW
Dept. of Haematology, Laboratory of Clinical Chemistry, National Institute of Public Health and Environmental Hygiene (RIVM), Bilthoven, The Netherlands.
D002138:Calibration; D004906:Erythrocyte Count / Q000295:instrumentation*; D006801:Humans; D011786:Quality Control; D012015:Reference Standards; D012016:Reference Values