1. Council Directive 92/32/EEC of 30.04.1992 amending for the seventh time. Directive 67/548/EEC on the approximation of the laws, regulations and administrative provision relating to the classification, packaging and labelling of dangerous substances,1992
2. Water quality — Pseudomonas putida growth inhibition test (Pseudomonas cell multiplication inhibition test) (ISO 10712: 1995),1995