Povučen
The procedure is based on the potentiometric titration of the free acidity in a test portion with a standard volumetric triethylamine solution in anhydrous methyl ethyl ketone (butanone). - ISO 1390, Parts 1 to 6, replace ISO Recommendation R 1390-1970.
POVUČEN
ISO 1390-3:1977
95.99
Povučen
27. 5. 2002.
Anhidrid maleinske kiseline, tehnički - Određivanje sadržaja slobodnih kiselina (kao maleinska kiselina) - Potenciometrijska metoda
95.99 Povučen