Rationale for the NCCLS standard H20-T for differential leukocyte counting.
The National Committee for Clinical Laboratory Standards (NCCLS) tentative standard for Leukocyte Differential Counting (H20-T) was developed in the United States as a reference method for differential leukocyte counting as well as a method for the evaluation of the performance of differential leukocyte counters. The key features of this document are outlined and the reasons for their inclusion in the standard are given.
D001699:Biometry; D006801:Humans; D007880:Legislation, Drug; D007958:Leukocyte Count / Q000379:methods; D011786:Quality Control; D014481:United States; D014486:United States Food and Drug Administration