Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005— 15 стр.
Surface active agents - Detergents - Determination of cationic-active matter content; Part 1: High-molecular-mass cationic-active matter (ISO 2871-1-1988); German version EN ISO 2871-1:1994— 4 стр.
Surface active agents - Detergents - Determination of cationic-active matter content; Part 2: Cationic-active matter of low molecular mass (between 200 and 500) (ISO 2871-2:1990); German version EN ISO 2871-1:1994— 5 стр.
Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994 including Technical Corrigendum 1:2002)— 97 стр.
Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005, Corrigenda to DIN EN 14668:2005-09; German version EN 14668:2005/AC:2006— 2 стр.
Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005, Corrigenda to DIN EN 14668:2005-09; German version EN 14668:2005/AC:2006— 2 стр.