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ISO 2363:1972

Sulphuric acid and oleums for industrial use — Determination of oxides of nitrogen — 2,4- Xylenol spectrophotometric method
1. 11. 1972.
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

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Apstrakt

The method ia applicable of oxide of nitrogen contents equal to or greater than 0,00002 % (m/m). The principle is based on oxidation of nitrous nitrogen to nitric nitrogen by potassium permanganate. Reaction of nitric nitrogen with 2,4-xylenol under specified conditions to form a nitrate derivate. Distillation of the nitrate derivate and absorption in sodium hydroxide solution. Spectrophotometric measurement of the yellow coloured nitrophenol at a wavelength of about 445 nm.

Životni ciklus

TRENUTNO

POVUČEN
ISO 2363:1972
95.99 Povučen
27. 5. 2002.

Nacionalna preuzimanja

SRPS H.B8.636:1981  
ISS

Ispitivanje sumporne kiseline - Određivanje sadržaja oksida azota - Spektrofotometrijska metoda

95.99   Povučen

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