ISO 13902:1997 PDF

Steel and iron — Determination of high sulfur content — Infrared absorption method after combustion in an induction furnace

Название (английский):

ISO 13902:1997

Steel and iron — Determination of high sulfur content — Infrared absorption method after combustion in an induction furnace

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 21 августа 1997 г.
Издание:: ISO IS 13902 edition 1 version 1
ICS:: 77.080.01

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Технические детали

Технический комитет: ISO/TC 17/SC 1 - Methods of determination of chemical composition
SKU: ISO 13902:1997

Abstract

Overview

ISO 13902:1997 specifies a laboratory method for the determination of high sulfur content in steel and iron by combustion in a high‑frequency induction furnace with subsequent infrared (IR) absorption measurement of the evolved sulfur dioxide (SO2). The procedure is applicable to sulfur levels between approximately 0.10 % (m/m) and 0.35 % (m/m) and includes sample preparation, combustion, IR analysis, calibration and quality checks.

Key topics and technical requirements

Principle: Combustion of a weighed test portion in pure oxygen in an induction furnace → sulfur to SO2 → measurement by IR absorption.
Analytical range: Method targeted at relatively high sulfur contents (around 0.10–0.35 % m/m). Calibration series extend to higher calibration members for instrument response.
Reagents & materials:
- Oxygen, minimum purity 99.5 % (m/m); use an oxidation catalyst (CuO or Pt) and purification if organics suspected.
- Pure iron with sulfur

Overview

Key topics and technical requirements

Principle: Combustion of a weighed test portion in pure oxygen in an induction furnace → sulfur to SO2 → measurement by IR absorption.
Analytical range: Method targeted at relatively high sulfur contents (around 0.10–0.35 % m/m). Calibration series extend to higher calibration members for instrument response.
Reagents & materials:
- Oxygen, minimum purity 99.5 % (m/m); use an oxidation catalyst (CuO or Pt) and purification if organics suspected.
- Pure iron with sulfur

ISO 13902:1997 PDF

Технические детали

Abstract

Overview

Key topics and technical requirements

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Abstract

Overview

Key topics and technical requirements

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