ISO 3239:1975 PDF
Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
Название (английский):
ISO 3239:1975
Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 1 июля 1975 г.
- Издание:
- ISO IS 3239 edition 1 version 1
- ICS:
- 71.060.50
Описание (английский):
Applicable to products the Fe content of which is equal to or more than 0.0003 % (m/m). Dissolution of the test sample in delute hydrochloric acid and bromine water by heating. Preliminary reduction of the iron(III) by hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered medium. Photometric measurement of the coloured complex at a wavelength of about 510 nm.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 3239:1975