Reference Materials (RMs) are also available from Fapas for some analyte/matrix combinations. RMs have a much higher degree of characterisation than PT or QC materials with a defined chain of traceability. RMs undergo formal stability testing for both short-term and long-term applications. RMs have an associated datasheet which lists the reference values and their expanded uncertainty U. The value of U is not a performance limit but is the uncertainty relating to the reference value. RMs therefore have a greater degree of trust in their values and can be used for method calibration purposes. Fapas RMs are generated according to the principles of ISO Guide 17034:2016 General requirements for the competence of reference material producers.
Fees (prices) on this site are in GBP and do not include carriage / handling fees and VAT. Customers outside the UK may also incur local charges, including (but not limited to) import duties, local taxes and customs clearance fees, which may add significant cost to your order. Prices here are for the PT round or QC / Reference Material only and the total price payable may be higher.