prEN ISO 21068-4

SLOVENSKI STANDARD
oSIST prEN ISO 21068-4:2023
01-julij-2023
Kemijska analiza surovin in ognjevzdržnih izdelkov, ki vsebujejo silicijev karbid,
silicijev nitrid, silicijev oksinitrid in sialon - 4. del: Metode XRD (ISO/DIS 21068-
4:2023)
Chemical analysis of raw materials and refractory products containing silicon-carbide,
silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO/DIS 21068-
4:2023)
Chemische Analyse von Rohstoffen und feuerfesten Erzeugnissen, die Siliciumcarbid,
Siliciumnitrid, Siliciumoxinitrid und Sialon enthalten - Teil 4: XRD-Verfahren (ISO/DIS
21068-4:2023)
Analyse chimique des matières premières et des produits réfractaires contenant du
carbure de silicium, du nitrure de silicium, de l’oxynitrure de silicium et du sialon - Partie
4: Méthodes de DRX (ISO/DIS 21068-4:2023)
Ta slovenski standard je istoveten z: prEN ISO 21068-4
ICS:
71.040.40 Kemijska analiza Chemical analysis
81.080 Ognjevzdržni materiali Refractories
oSIST prEN ISO 21068-4:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 21068-4:2023

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oSIST prEN ISO 21068-4:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21068-4
ISO/TC 33 Secretariat: BSI
Voting begins on: Voting terminates on:
2023-06-02 2023-08-25
Chemical analysis of raw materials and refractory products
containing silicon-carbide, silicon-nitride, silicon-
oxynitride and sialon —
Part 4:
XRD methods
ICS: 81.080
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
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NATIONAL REGULATIONS.
ISO/DIS 21068-4:2023(E)
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

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oSIST prEN ISO 21068-4:2023

DRAFT INTERNATIONAL STANDARD
ISO/DIS 21068-4
ISO/TC 33 Secretariat: BSI
Voting begins on: Voting terminates on:

Chemical analysis of raw materials and refractory products
containing silicon-carbide, silicon-nitride, silicon-
oxynitride and sialon —
Part 4:
XRD methods
ICS: 81.080
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 21068-4:2023(E)
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ii
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

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oSIST prEN ISO 21068-4:2023
ISO/DIS 21068-4:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope .
...