Повучен
The principle of the method specified is to distil a prepared flux solution with sodium hydroxide to expel the ammonia present in the flux, to pass the resulting distillate into a standard sulfuric acid solution, to titrate the excess acid with sodium hydroxide solution and to calculate the ammonia content of the flux. Applies to fluxes of class 3.1.1 only, as defined in ISO 9454-1.
ПОВУЧЕН
ISO 9455-9:1993
95.99
Повучен
19. 10. 2020.
ОБЈАВЉЕН
ISO 9455-9:2020
Topitelji za meko lemljenje – Metode ispitivanja – Deo 9: Određivanje sadržaja amonijaka
95.99 Повучен
Topitelji za meko lemljenje – Metode ispitivanja – Deo 9: Određivanje sadržaja amonijaka
10.99 Нови пројекат се прихвата