0 Stavka
Moj nalog
Telefon: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Prodaja standarda: prodaja@iss.rs Seminari, obuke: iss-edukacija@iss.rs Informacije o standardima: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Glavni meni

ISO 914:1977

Sulphuric acid and oleum for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
1. 11. 1977.
95.99   Povučen   27. 5. 2002.

Опште информације

95.99     27. 5. 2002.

ISO

ISO/TC 47

Međunarodni standard

71.060.30  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

The method is applicable to products having a total nitrogen content equal to or greater than 0.05 % (m/m). The principle consists in the conversion of the nitrogen present in a test portion to ammonia by means of nascent hydrogen. Distillation and absorption of the ammonia in an excess of standard volumetric sulphuric acid solution, and back-titration with a standard volumetric sodium hydroxide solution in the presence of an indicator. - Replaces ISO Recommendation R 914-1968.

Životni ciklus

TRENUTNO

POVUČEN
ISO 914:1977
95.99 Povučen
27. 5. 2002.

Nacionalna preuzimanja

SRPS H.B8.013:1981  
ISS

Ispitivanje sumporne kiseline - Određivanje sadržaja ukupnog azota - Volumetrijska metoda

95.99   Povučen

H047 Saznaj više