SIST EN ISO 4937:2025 PDF
Steel and iron - Determination of chromium content - Potentiometric or visual titration method (ISO 4937:2024)
Steel and iron - Determination of chromium content - Potentiometric or visual titration method (ISO 4937:2024)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 22
- Дата публикации:
- 24 декабря 2024 г.
- Издание:
- ISO 4937:2024
- ICS:
- 77.040.30
This document specifies a method for the determination of chromium in steel and iron by potentiometric or visual titration. The method is applicable to chromium contents between 0,25 % (mass fraction) and 35 % (mass fraction). If vanadium is present, the visual titration is applicable only to test portions containing less than 3 mg of vanadium. NOTE The visual titration can be applicable to test portion containing between 3 mg and 6 mg of vanadium.
Abstract
Overview
EN ISO 4937:2024 - published by CEN as the European adoption of ISO 4937:2024 - specifies a standardized laboratory method for the determination of chromium in steel and iron by potentiometric or visual titration. The method covers chromium mass fractions from 0.25% to 35% and defines chemical treatment, titration detection modes, precision assessment and reporting requirements for routine and compliance testing.
Key topics and technical requirements
- Scope and limits
- Applicable to steels and irons with Cr 0.25%–35% (mass fraction).
- Visual titration: normally limited to test portions containing **
Технические детали
- Технический комитет
- IFEK - Ferrous metals
- SKU
- SIST EN ISO 4937:2025
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