ILAC, International Laboratory Accreditation Cooperation; VIM3, International Vocabulary of Metrology 3; CLIA 88, Clinical Laboratory Improvement Amendments of 1988; SD, Standard deviation; CV, Coefficient of variation; TEa, Total error allowable; BNP, B-natriuretic peptide; PSA, Prostate-specific antigen; LD, Lactate dehydrogenase; TV, Target value; TSH, Thyroid-stimulating hormone;HIL, haemolysis/icterus/lipaemia; AMR, Analytical measurement range; CRR, Clinical reportable range; LOB, Limit of blank; LOD, Limit of detection; LOQ, Limit of quantification. Here, NPPB is linked to Jaundice.