ISO 4139:1979
Ferrosilicon — Determination of aluminium content — Flame atomic absorption spectrometric method
Ferrosilicon — Determination of aluminium content — Flame atomic absorption spectrometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 мая 1979 г.
- Издание:
- ISO IS 4139 edition 1 version 1
- ICS:
- 77.100
The method is applicable to ferrosilicon having an aluminium content between 0,05 and 5 % (m/m). Specifies principle, reagents, apparatus, sample, procedure, expression of results and test report. Warns of perchloric acid fumes.
Abstract
Overview
ISO 4139:1979 is an international standard published by the International Organization for Standardization (ISO) that specifies a precise analytical method for determining the aluminium content in ferrosilicon alloys. The method uses , a highly sensitive technique to measure aluminium concentrations ranging from 0.05% to 5% by mass. This standard ensures consistency, accuracy, and reliability in the chemical analysis of ferrosilicon-a critical ferroalloy used in various industrial applications.
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