Povučen
The principle consists in the dissolution of a test portion in an excess of standard volumetric sodium hydroxide solution and back-titration of the excess with a standard volumetric hydrochloric acid solution using phenolphthalein as indicator. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.
POVUČEN
ISO 1389-6:1977
95.99
Povučen
27. 5. 2002.
Anhidrid ftalne kiseline, tehnički - Određivanje sadržaja anhidrida ftalne kiseline - Volumetrijska metoda
95.99 Povučen