Standard

NS-EN ISO 21068-4:2024

Jul 2024 Published

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Abstract

This document describes methods for the determination of mineralogical phases typically apparent in nitride and oxy-nitride bonded silicon carbide refractory products using a Bragg-Brentano diffractometer.It includes details of sample preparations and general principles for qualitative and quantitative analyses of mineralogical phase composition. Quantitative determination of α-Si3N4, β-Si3N4, Si2ON2, AlN, and β’- SiAlON are described.For quantitative determination of α-Si3N4, β-Si3N4, Si2ON2, AlN and β’-SiAlON refinement procedures based on the total nitrogen content of the sample are described.NOTE ISO 21068-3 is used for the analysis of the total nitrogen content of the sample.

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Standard from SN
Published: 1 July 2024
Edition: 2024-06
Version: 1
Document type: NAT
ISBN:

ICS 81.080
National Committee CEN/TC 187

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Refers: ISO 8656-1:1988
Refers: ISO 5022:1979
Adopted from: EN ISO 21068-4:2024 , 0

NS-EN ISO 21068-4:2024

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Abstract

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