ISO 10697-1:1992 PDF
Steel — Determination of calcium content by flame atomic absorption spectrometry — Part 1: Determination of acid-soluble calcium content
Steel — Determination of calcium content by flame atomic absorption spectrometry — Part 1: Determination of acid-soluble calcium content
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 13
- Дата публикации:
- 30 января 1992 г.
- Издание:
- ISO IS 10697 edition 1 version 1
- ICS:
- 77.080.20
Specifies the principle, the reagents, the apparatus, the sampling, the test procedure, the expression of results, the precision and the test report.
Abstract
Overview
ISO 10697-1:1992 specifies a standardized flame atomic absorption spectrometry (AAS) method for determining the acid‑soluble calcium content in steel. The part covers principle, reagents, apparatus, sampling, test procedure, calibration, analytical performance (precision, detection limits, characteristic concentration) and reporting. The method is applicable to calcium levels from 0.0005 % (m/m) to 0.003 % (m/m) and uses dissolution in hydrochloric and nitric acids followed by AAS measurement of the 422.7 nm Ca line in a dinitrogen‑monoxide/acetylene flame.
Key topics and technical requirements
- Scope & definition: Acid‑soluble calcium = calcium dissolved in the specified acids (HCl/HNO3).
- Sampling: Follow ISO 377.2 (sampling and preparation of steel samples).
- Reagents & solvents: Analytical‑grade reagents and very low‑calcium water (ISO 3696); potassium chloride/lanthanum nitrate buffer; pure iron diluent with
Технические детали
- Технический комитет
- ISO/TC 17/SC 1 - Methods of determination of chemical composition
- SKU
- ISO 10697-1:1992
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