ISO 13899-2:2005 PDF

Steel — Determination of Mo, Nb and W contents in alloyed steel — Inductively coupled plasma atomic emission spectrometric method — Part 2: Determination of Nb content

Название (английский):

ISO 13899-2:2005

Steel — Determination of Mo, Nb and W contents in alloyed steel — Inductively coupled plasma atomic emission spectrometric method — Part 2: Determination of Nb content

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 23 июня 2005 г.
Издание:: ISO IS 13899 edition 1 version 1
ICS:: 77.080.20

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Описание (английский):

ISO 13899-2:2005 specifies a method for the determination of the niobium content in steel by means of inductively coupled plasma emission spectrometry. This method is applicable to niobium contents between 0,005 and 5 % (mass fraction).

Технические детали

Технический комитет: ISO/TC 17/SC 1 - Methods of determination of chemical composition
SKU: ISO 13899-2:2005

Abstract

Overview

ISO 13899-2:2005 specifies a standardized laboratory method for the determination of niobium (Nb) content in alloyed steel using inductively coupled plasma atomic emission spectrometry (ICP-AES / ICP-ES). The procedure is applicable to Nb mass fractions from 0.005 % to 5 %. It defines sample dissolution, calibration, instrumental performance checks and result expression to ensure accurate and reproducible Nb measurements in steel.

Key topics and technical requirements

Scope and range: Applicable for Nb contents between 0.005–5 % (mass fraction).
Sample preparation: Dissolution of steel using a mixture of HF, HCl and HNO3, followed by fuming with a phosphoric/perchloric acid mixture; final dilution, filtration and addition of an internal standard (optional).
Calibration strategy: Close matrix matching and bracketing of Nb concentration around the expected sample level to compensate for matrix and spectral interferences.
Instrument requirements (ICP-ES):
- Nebulizer and spray system resistant to hydrofluoric acid (PTFE or HF-resistant plastics).
- Spectral bandwidth (resolution) for chosen lines:

Overview

Key topics and technical requirements

Scope and range: Applicable for Nb contents between 0.005–5 % (mass fraction).
Sample preparation: Dissolution of steel using a mixture of HF, HCl and HNO3, followed by fuming with a phosphoric/perchloric acid mixture; final dilution, filtration and addition of an internal standard (optional).
Calibration strategy: Close matrix matching and bracketing of Nb concentration around the expected sample level to compensate for matrix and spectral interferences.
Instrument requirements (ICP-ES):
- Nebulizer and spray system resistant to hydrofluoric acid (PTFE or HF-resistant plastics).
- Spectral bandwidth (resolution) for chosen lines:

ISO 13899-2:2005 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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