Scheme Particulars Indicative Details
Accreditation body UKAS
UKAS Accredited Proficiency Testing Provider No 7860
Number of distributions per year (nominal) 11
Specimens per distribution 3 (Separate specimens for B12/Folate, Ferritin and Red Cell Folate)
Frequency of distribution Monthly
Material distributed Single/pooled donations of liquid human serum with or without exogenous added analyte for B12, Ferritin and Folate. Human washed cells suspended in human plasma for Red Cell Folate
Nominal sample volume (mL) 0.5 - 1
Programme Director(s) / Organiser(s) Finlay MacKenzie
Analyte Approximate Range Default Scheme Units
B12 150 – 1000 ng/L [pg/mL]
Ferritin 5 – 2000 µg/L
Folate 1.5 – 45 µg/L
Red Cell Folate 100 – 1000 µg/L
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