General - Scope - Plants
Wageningen University is accredited for the organization of Interlaboratory Studies by the Dutch Accreditation Council RvA under registration number R002. The accreditation is based on the ISO/IEC- requirements (General requirements for proficiency testing, ISO/IEC 17043:2010). Determinands only meet the criteria for accreditation if the results are reported by a sufficient number of participants for at least three years and the results have proven to be homogeneous and stable.
Determinands that are not in bold are not subject to accreditation.
| Program | Determinand group | Determinand |
|---|---|---|
| IPE | Inorganic Chemical Composition | Ag, As, B, Ba, Be, Bi, Br, Ca, Cd, Cl (as Cl), Co, Cr, Cs, Cu, F, Fe, Ga, Hg, I, K, Li, Mg, Mn, Mo, N - Kjeldahl (as N), N - NH4 (as N), N - NO3 (as N), Na, Ni, P (as P), Pb, Pd, Pt, Rb, Rh, S (as S), Sb, Se, Sn, SO4 (as SO4), Sr, Ti, V, Zn |
| IPE | Real totals | Al, C - elementary, N - elementary, Si |
| IPE | Acid extractable (So-called totals) | Al, Si |
| IPE | Other determinations | delta 13C, delta 15N |
| IPE | Nutritional values | ADF-ash-free, Crude fibre, NDF-ash-containing, NDF-ash-free, Polysaccharides (starch), Total ash, Total Disaccharides, Total fat, Total monosaccharides |