Production in optical engineering - Test of polishing agents for optical engineering - Part 3: Polishing performance and surface condition for precision optics— 10 стр.
General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspension (ISO 787-9:1981); German version EN ISO 787-9:1995— 4 стр.
Production in optical engineering - Test of polishing agents for optical engineering - Part 3: Polishing performance and surface condition for precision optics— 10 стр.