Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 4: Visual test for impurities insolubel in sodium hydroxide solution (Excluding cresylic acid and xylenols)
Plastics piping systems - Guidance for the installation inside buildings of pressure piping systems for hot and cold water intended for human consumption; German version ENV 12108:2001
Fruit and vegetable juices - Determination of the stable oxygen isotope ratio (<(hoch)18>O/<(hoch)16>O) of water from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12141:1996
Fruit and vegetable juices - Determination of the stable hyydrogen isotope ratio (<(hoch)2>H/<(hoch)1>H) of water from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12142:1996
