ISO 2363:1972 PDF
Sulphuric acid and oleums for industrial use — Determination of oxides of nitrogen — 2,4- Xylenol spectrophotometric method
Sulphuric acid and oleums for industrial use — Determination of oxides of nitrogen — 2,4- Xylenol spectrophotometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 1 ноября 1972 г.
- Издание:
- ISO IS 2363 edition 1 version 1
- ICS:
- 71.060.30
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.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 2363:1972
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