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  • The certification of the contents (mass fractions) of calcium, chloride, magnesium, manganese, nitrate, phosphate, potassium, sodium and sulphate in artificial groundwater: High carbonate content CRM 616, low carbonate content CRM 617


This report describes the preparation of two artificial groundwater reference materials, CRM 616 (high carbonate content) and CRM 617 (low carbonate content), the homogeneity and stability studies and the analytical work performed for the certification of a range of major elements. The report contains all the results and gives the methods used to certify the contents of Ca, Cl, Fe, K, Mg, Mn, Na, NO(3), PO(4), and SO(4). Indicative values are given for NH(4) and Fe in both CRMs and PO(4) in CRM 617.

Additional information

Authors: QUEVAUVILLER P, CEC Bruxelles (BE);BENOLIEL M J, Empresa Purtuguesa das Águas Livres, Lisboa (PT);NEVES CARNEIRO R, Empresa Purtuguesa das Águas Livres, Lisboa (PT);CORTEZ L, Instituto Português de Qualidade, Monte da Caparica (PT)
Bibliographic Reference: EUR 18286 EN (1998) 70pp., free of charge
Availability: Available from the DG XII Documentation Centre, European Commission, 200 rue de la Loi, B-1049 Bruxelles (BE), Fax: +32-2-2969823
ISBN: ISBN 92-828-3954-0
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