DIN EN ISO 13395:1996
水质.采用流量分析和光谱测定检测法对亚硝酸氮和硝酸氮及两者总含量的测定(CFA和FIA) (ISO 13395:1996); 德文版本 EN ISO 13395:1996
Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996