Standard

ISO 21068-4:2024

Jun 2024 Withdrawn draft

Note: Latest version: ISO 21068-4:2024

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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 ISO
Published: June 10 2024
Edition: 1
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 81.080
International TC: ISO/TC 33

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Version history History (3)

ISO 21068-4:2024

ISO 21068-4:2024

ISO 21068-4:2024

Abstract

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