ISO 14719:2011 PDF
Chemical analysis of refractory material glass and glazes — Determination of Fe2+ and Fe3+ by the spectral photometric method with 1,10-phenanthroline
Chemical analysis of refractory material glass and glazes — Determination of Fe2+ and Fe3+ by the spectral photometric method with 1,10-phenanthroline
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 13
- Дата публикации:
- 29 ноября 2011 г.
- Издание:
- ISO IS 14719 edition 1 version 1
- ICS:
- 81.040.01
ISO 14719:2011 specifies a spectral photometric method with 1,10-phenanthroline for the quantitative determination of Fe2+ and Fe3+ in oxidic raw and basic materials for ceramics, glass and glazes, e.g. feldspar, kaolinites, clay, limestone, quartz refractory materials. ISO 14719:2011 could be extended to other aluminosilicate materials, providing that uncertainty data is produced to support it. However, there might be problems in the decomposition of high-purity alumina and chrome ore samples. The method is not suitable for reduced materials, such as silicon carbide, graphite-magnesia, etc.
Abstract
Overview
ISO 14719:2011 specifies a spectral photometric method with 1,10‑phenanthroline for the quantitative determination of Fe2+ and Fe3+ in oxidic raw and basic materials used in ceramics, glass and glazes (e.g., feldspar, kaolinites, clay, limestone, quartz refractory materials). The method uses HF/H2SO4 digestion, formation of the orange‑pink 1,10‑phenanthroline–ferrous complex and photometric measurement at 510 nm. Two dissolution/handling procedures (Method A and Method B) are provided to minimise oxidation during analysis.
Key technical topics and requirements
- Scope and limitations
- Intended for oxidic materials and many aluminosilicates; not suitable for reduced materials (silicon carbide, graphite‑magnesia).
- Possible decomposition difficulties with high‑purity alumina and chrome ore.
- Sample preparation
- Grind to
Технические детали
- Технический комитет
- ISO/TC 33 - Refractories
- SKU
- ISO 14719:2011
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