Non-ionic surface active agents - Determination of cloud point-index - Volumetric method (ISO 4320:1977, including Erratum:1980); German version EN ISO 4320:1997— 4 стр.
Surface active agents; determination of the cloud point temperature (cloud point) of non-ionic surface active agents obtained from ethylene oxide— 4 стр.
Dentistry - Powered polymerization activators - Part 2: Light-emitting diode (LED) lamps (ISO 10650-2:2007); German version EN ISO 10650-2:2007— 12 стр.