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ISO 4279:1977

Aluminium fluoride for industrial use — Determination of sodium content — Flame emission spectrophotometric method
1. 11. 1977.
95.99   Povučen   27. 5. 2002.

Опште информације

95.99     27. 5. 2002.

ISO

ISO/TC 47

Međunarodni standard

71.060.50  

francuski   engleski  

Kupovina

Povučen

Jezik na kome želite da primite dokument.

Apstrakt

Applicable to products having Na contents, expressed as Na2 O, of equal to or more than 0.05 % (m/m). The principle bases on fusion, at a controlled temperature, of a test portion with a mixture of lithium carbonate and boric oxide or with a mixture of lithium carbonate and lithium tetraborate in a platinum or platinum-gold alloy crucible. Extraction of the fused mass with hydeochloric acid solution. Aspiration of the solution into a flame and photometric measurement of the intensity of the radiation emitted at 589 nm.

Životni ciklus

TRENUTNO

POVUČEN
ISO 4279:1977
95.99 Povučen
27. 5. 2002.

Nacionalna preuzimanja

SRPS H.B8.190:1979  
ISS

Aluminijum-fluorid, tehnički - Određivanje sadržaja natrijuma - Plamenofotometrijska metoda

95.99   Povučen

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