ISO 6678:1981 PDF
Phosphoric acid for industrial use — Determination of lead content — Atomic absorption spectrometric method
Phosphoric acid for industrial use — Determination of lead content — Atomic absorption spectrometric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 октября 1981 г.
- Издание:
- ISO IS 6678 edition 1 version 1
- ICS:
- 71.060.30
The lead is extracted from a diluted test portion into a solution of diethylammonium diethyldithiocarbamate in xylene. The xylene extract is separated and aspirated into the acetylene/air flame of an atomic absorption spectrometer. The spectrometric measurements are carried out at a wavelength of about 217 nm or, alternatively, about 283 nm. The method is applicable to phosphoric acids having lead contents greater than 0.1 mg/kg.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 6678:1981
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