Haematology - Determination of the concentration of blood corpuscles in blood - Part 4: Reference procedure for the determination of the concentration of leucocytes
The standard specifies a reference procedure for the determination of the leucocyte concentration in human blood. This standard also applies to corpuscle counting in stabilised control bloods containing fixed human or animal blood corpuscles or particles of non-biological origin, e. g. beads, if the metrological behaviour of the corpuscles to be measured corresponds to that of leucocytes.