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ISO 2830:1973

Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
1. 12. 1973.

Опште информације

90.93     13. 6. 2022.

ISO

ISO/TC 226

Međunarodni standard

71.060.50  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

Applicable to products having a normal composition for which the molar ratio NaF/AlF3 is equal to about 3. Dissolution of a test portion in concentrated suphuric acid and elimination of hydrogen fluoride. Treatment with hydrochloric acid and water. Atomization of the solution into an acetylene measurement of the absorption of the 309.3 nm line emitted by an aluminium hollow cathode lamp. Has also been approved by the IUPAC.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 2830:1973
90.93 Odluka o potvrđivanju standarda
13. 6. 2022.

Nacionalna preuzimanja

SRPS H.B8.131:1980  
ISS

Kriolit, prirodni i sintetički - Određivanje sadržaja aluminijuma - Metoda atomske apsorpcije

95.99   Povučen

B082 Saznaj više