ISO 3119:1976 PDF
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method
Название (английский):
ISO 3119:1976
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 апреля 1976 г.
- Издание:
- ISO IS 3119 edition 1 version 1
- ICS:
- 71.060.01
Описание (английский):
Alkaline fusion of a test portion by sodium carbonate and subsequent neutralization by sulphuric acid. Measurement of the absorption of the complex formed by chromium and diphenylcarbazide at a wavelength of abour 540 nm after adding sodium azide for elimination of the colour caused by manganese.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 3119:1976