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Beschreibung

The new batch is produced and certified under DANAK accreditation no. 535 according to ISO Guide 34 /// This reference material consists of a glass bottle with a natural reference sample for quality control. The certificate includes documentation for the analytical parameters Ammonium (NH4), Nitrite (NO2), Nitrite+Nitrate (NO2+3, or TOxN) and Total Nitrogen (TN). The salinity of the sample is approximately 11 (PSS 78).