Повучен
The method is based on titration of a dissolved test portion with a standard volumetric solution of sodium hydroxide in the presence of mannitol or sorbitol, using phenolphthalein as indicator. Water free from carbon dioxide, shall be used in the test .
ПОВУЧЕН
ISO 1914:1972
95.99
Повучен
27. 5. 2002.
Ispitivanje tehničke borne kiseline - Određivanje sadržaja borne kiseline - Volumetrijska metoda
95.99 Повучен