ISO 9658:2024 PDF

Steel — Determination of aluminium content — Flame atomic absorption spectrometric method

Название (английский):

ISO 9658:2024

Steel — Determination of aluminium content — Flame atomic absorption spectrometric method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 13 сентября 2024 г.
Издание:: ISO IS 9658 edition 2 version 1
ICS:: 77.080.20

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Описание (английский):

This document specifies a flame atomic absorption spectrometric method for the determination of acid-soluble and/or total aluminium in non-alloyed steel. The method is applicable to aluminium contents between 0,005 % (mass fraction) and 0,20 % (mass fraction).

Технические детали

Технический комитет: ISO/TC 17/SC 1 - Methods of determination of chemical composition
SKU: ISO 9658:2024

Abstract

Overview - What ISO 9658:2024 covers

ISO 9658:2024 specifies a flame atomic absorption spectrometric (FAAS) method for determining acid‑soluble and/or total aluminium in non‑alloyed steel. The procedure applies to aluminium contents from 0.005 % to 0.20 % (mass fraction). The standard describes sample preparation, required reagents and apparatus, instrument performance criteria, calibration and calculation of results, and reporting requirements.

Keywords: ISO 9658:2024, aluminium determination, steel analysis, flame atomic absorption spectrometry, FAAS, acid‑soluble aluminium.

Key technical topics and requirements

Analytical principle: Dissolve test portion in a hydrochloric–nitric acid mixture; fuse any acid‑insoluble residue with an orthoboric acid/potassium carbonate mixture; nebulize the final solution into a dinitrogen monoxide–acetylene flame and measure atomic absorption at 309.3 nm (aluminium hollow‑cathode lamp).
Scope and range: Applicable to non‑alloyed steel with aluminium between 0.005 % and 0.20 % mass fraction.
Reagents and standards: Includes preparation of aluminium standard solutions (e.g., 2.0 g/L, 0.20 g/L, 0.020 g/L) and specific acid mixtures; use reagents of analytical grade and water conforming to ISO 3696.
Apparatus & performance:
- FAAS with Al hollow‑cathode lamp (or equivalent source).
- Flame gases: dinitrogen monoxide and acetylene; strict purity to avoid Al contamination.
- Instrument performance criteria: limit of detection

Overview - What ISO 9658:2024 covers

Keywords: ISO 9658:2024, aluminium determination, steel analysis, flame atomic absorption spectrometry, FAAS, acid‑soluble aluminium.

Key technical topics and requirements

Analytical principle: Dissolve test portion in a hydrochloric–nitric acid mixture; fuse any acid‑insoluble residue with an orthoboric acid/potassium carbonate mixture; nebulize the final solution into a dinitrogen monoxide–acetylene flame and measure atomic absorption at 309.3 nm (aluminium hollow‑cathode lamp).
Scope and range: Applicable to non‑alloyed steel with aluminium between 0.005 % and 0.20 % mass fraction.
Reagents and standards: Includes preparation of aluminium standard solutions (e.g., 2.0 g/L, 0.20 g/L, 0.020 g/L) and specific acid mixtures; use reagents of analytical grade and water conforming to ISO 3696.
Apparatus & performance:
- FAAS with Al hollow‑cathode lamp (or equivalent source).
- Flame gases: dinitrogen monoxide and acetylene; strict purity to avoid Al contamination.
- Instrument performance criteria: limit of detection

ISO 9658:2024 PDF

Технические детали

Abstract

Overview - What ISO 9658:2024 covers

Key technical topics and requirements

Похожие стандарты

Abstract

Overview - What ISO 9658:2024 covers

Key technical topics and requirements

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