EN ISO 21814:2022
(Main)Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of aluminium nitride powders (ISO 21814:2019)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of aluminium nitride powders (ISO 21814:2019)
This document specifies methods for the chemical analysis of fine aluminium nitride powders used as the raw material for fine ceramics.
This document stipulates the determination methods of the aluminium, total nitrogen, boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium, zinc, zirconium, carbon, chlorine, fluorine, and oxygen contents in aluminium nitride powders. The aluminium content is determined by using either an acid pressure decomposition-CyDTA-zinc back titration method or an acid digestion-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The total nitrogen content is determined by using an acid pressure decomposition-distillation separation-acidimetric titration method, a direct decomposition-distillation separation-acidimetric titration method, or an inert gas fusion-thermal conductivity method. The boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium and zinc contents are determined by using an acid digestion-ICP-OES method or an acid pressure decomposition-ICP-OES method. The sodium and potassium contents are determined via an acid pressure decomposition-flame emission method or an acid pressure decomposition-atomic absorption spectrometry method. The oxygen content is determined by using an inert gas fusion-IR absorption spectrometry method, while that of carbon is determined via a combustion-IR absorption spectrometry method or a combustion-conductometry method. The chlorine and fluorine contents are determined by using a pyrohydrolysation method followed by ion chromatography or spectrophotometry.
Hochleistungskeramik - Verfahren zur chemischen Analyse von Aluminiumnitridpulvern (ISO 21814:2019)
Dieses Dokument legt Verfahren für die chemische Analyse von feinen Aluminiumnitridpulvern fest, die als Rohstoffe für Hochleistungskeramik verwendet werden.
Dieses Dokument legt die Verfahren zur Bestimmung der Gehalte an Aluminium, Gesamtstickstoff, Bor, Calcium, Kupfer, Eisen, Magnesium, Mangan, Molybdän, Nickel, Kalium, Silicium, Natrium, Titan, Wolfram, Vanadium, Zink, Zirconium, Kohlenstoff, Chlor, Fluor und Sauerstoff in Aluminiumnitridpulvern fest. Der Aluminiumgehalt wird entweder mittels CyDTA-Zink-Rücktitration nach Säuredruckaufschluss oder mittels optischer Emissionsspektrometrie mit induktiv gekoppeltem Plasma (ICP-OES, en: inductively coupled plasma-optical emission spectrometry) nach Säureaufschluss bestimmt. Der Gesamtstickstoffgehalt wird mittels acidimetrischer Titration nach Säuredruckaufschluss und Destillationstrennung, acidimetrischer Titration nach direktem Aufschluss und Destillationstrennung oder mittels thermischer Konduktometrie nach Inertgas-Schmelzextraktion bestimmt. Die Gehalte an Bor, Calcium, Kupfer, Eisen, Magnesium, Mangan, Molybdän, Nickel, Kalium, Silicium, Natrium, Titan, Wolfram, Vanadium und Zink werden mittels ICP-OES nach Säureaufschluss oder Säuredruckaufschluss bestimmt. Die Gehalte an Natrium und Kalium werden mittels Flammenemission nach Säuredruckaufschluss oder mittels Atomabsorptions¬spektrometrie nach Säuredruckaufschluss bestimmt. Der Sauerstoffgehalt wird mittels IR-Absorptions¬spektrometrie nach Inertgas-Schmelzextraktion bestimmt, der Kohlenstoffgehalt mittels IR Absorptions¬spektrometrie nach Verbrennung oder mittels konduktometrischer Bestimmung nach Verbrennung. Die Gehalte an Chlor und Fluor werden mittels Pyrohydrolyse und anschließender Ionenchromatographie oder Spektrophotometrie bestimmt.
Céramiques techniques - Méthodes d'analyse chimique des poudres de nitrure d'aluminium (ISO 21814:2019)
Le présent document spécifie des méthodes d’analyse chimique des poudres de nitrure d’aluminium utilisées comme matière première pour les céramiques techniques.
Le présent document stipule les méthodes de détermination des teneurs en aluminium, azote total, bore, calcium, cuivre, fer, magnésium, manganèse, molybdène, nickel, potassium, silicium, sodium, titane, tungstène, vanadium, zinc, zirconium, carbone, chlore, fluor et oxygène des poudres de nitrure d’aluminium. La teneur en aluminium est déterminée à l’aide d’une méthode par décomposition sous pression en milieu acide / CyDTA / titrage en retour au zinc, ou d’une méthode par digestion acide / spectrométrie d’émission optique avec plasma à couplage inductif (ICP-OES). La teneur totale en azote est déterminée à l’aide d’une méthode par décomposition sous pression en milieu acide / séparation par distillation / titrage acidimétrique, d’une méthode par décomposition directe: séparation par distillation / titrage acidimétrique, ou d’une méthode par fusion sous gaz inerte / conductivité thermique. Les teneurs en bore, calcium, cuivre, fer, magnésium, manganèse, molybdène, nickel, potassium, silicium, sodium, titane, tungstène, vanadium et zinc sont déterminées à l’aide d’une méthode par digestion acide / ICP-OES ou d’une méthode par décomposition sous pression en milieu acide / ICP-OES. Les teneurs en sodium et potassium sont déterminées à l’aide d’une méthode par décomposition sous pression en milieu acide / émission de flamme, ou d’une méthode par décomposition sous pression en milieu acide / spectrométrie d’absorption atomique. La teneur en oxygène est déterminée à l’aide d’une méthode par fusion sous gaz inerte / spectrométrie d’absorption IR, tandis que la teneur en carbone est déterminée à l’aide d’une méthode par combustion / spectrométrie d’absorption IR ou d’une méthode par conduction / conductimétrie. Les teneurs en chlore et en fluor sont déterminées à l’aide d’une méthode par pyrohydrolyse suivie d’une chromatographie ionique ou d’une spectrophotométrie.
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Preskusne metode za kemične analize praškov aluminijevega nitrida (ISO 21814:2019)
Ta dokument določa metode za kemično analizo finih praškov aluminijevega nitrida, ki se uporabljajo kot surovina za fino keramiko.
Ta dokument določa metode za določevanje vsebnosti aluminija, skupnega dušika, bora, kalcija, bakra, železa, magnezija, mangana, molibdena, niklja, kalija, silicija, natrija, titana, volframa, vanadija, cinka, cirkonija, ogljika, klora, fluora in kisika v praških aluminijevega nitrida. Vsebnost aluminija se določi z uporabo metode povratne titracije s CyDTA/cinkom v kombinaciji s kislinsko razgradnjo ali metode optične emisijske spektrometrije z induktivno sklopljeno plazmo (ICP-OES) v kombinaciji z razklopom v kislini. Vsebnost skupnega dušika se določi z uporabo metode acidimetrične titracije z destilacijskim ločevanjem v kombinaciji s kislinsko razgradnjo, metode acidimetrične titracije z destilacijskim ločevanjem v kombinaciji z neposredno razgradnjo ali metodo toplotne prevodnosti v kombinaciji s fuzijo inertnega plina. Vsebnost bora, kalcija, bakra, železa, magnezija, mangana, molibdena, niklja, kalija, silicija, natrija, titana, volframa, vanadija in cinka se določi z uporabo metode optične emisijske spektrometrije z induktivno sklopljeno plazmo v kombinaciji s kislinsko razgradnjo. Vsebnost natrija in kalija se določi z uporabo metode plamenske emisije ali metode atomske absorpcijske spektrometrije v kombinaciji s kislinsko razgradnjo. Vsebnost kisika se določi z uporabo metode IR-absorpcijske spektrometrije v kombinaciji s fuzijo inertnega plina, vsebnost ogljika pa z metodo IR-absorpcijske spektrometrije v kombinaciji z zgorevanjem ali metodo konduktometrije v kombinaciji z zgorevanjem. Vsebnost klora in fluora se določi z uporabo metode pirohidrolizacije, ki ji sledi ionska kromatografija ali spektrofotometrija.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2023
Nadomešča:
SIST EN 725-4:2007
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Preskusne
metode za kemične analize praškov aluminijevega nitrida (ISO 21814:2019)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for
chemical analysis of aluminium nitride powders (ISO 21814:2019)
Hochleistungskeramik - Verfahren zur chemischen Analyse von Aluminiumnitridpulvern
(ISO 21814:2019)
Céramiques techniques - Méthodes d'analyse chimique des poudres de nitrure
d'aluminium (ISO 21814:2019)
Ta slovenski standard je istoveten z: EN ISO 21814:2022
ICS:
81.060.30 Sodobna keramika Advanced ceramics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 21814
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2022
EUROPÄISCHE NORM
ICS 81.060.30 Supersedes EN 725-4:2006
English Version
Fine ceramics (advanced ceramics, advanced technical
ceramics) - Methods for chemical analysis of aluminium
nitride powders (ISO 21814:2019)
Céramiques techniques - Méthodes d'analyse chimique Hochleistungskeramik - Verfahren zur chemischen
des poudres de nitrure d'aluminium (ISO 21814:2019) Analyse von Aluminiumnitridpulvern (ISO
21814:2019)
This European Standard was approved by CEN on 21 November 2022.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
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CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21814:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 21814:2019 has been prepared by Technical Committee ISO/TC 206 "Fine ceramics” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 21814:2022
by Technical Committee CEN/TC 184 “Advanced technical ceramics” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 725-4:2006.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 21814:2019 has been approved by CEN as EN ISO 21814:2022 without any modification.
INTERNATIONAL ISO
STANDARD 21814
First edition
2019-02
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Methods for chemical analysis of
aluminium nitride powders
Céramiques techniques — Méthodes d’analyse chimique des poudres
de nitrure d'aluminium
Reference number
ISO 21814:2019(E)
©
ISO 2019
ISO 21814:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2019 – All rights reserved
ISO 21814:2019(E)
Contents Page
Foreword .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Analytes and ranges . 2
5 Preparation of the test sample . 2
5.1 General . 2
5.2 Sampling . 3
5.3 Drying . 3
5.4 Weighing . 3
6 Reporting the analytical values . 3
6.1 Number of analyses. 3
6.2 Blank test . 3
6.3 Evaluation of the analytical values. 3
6.4 Expression of the analytical values . 3
7 Determination of the aluminium content . 4
7.1 Classification of the determination methods . 4
7.2 Acid decomposition-ICP-OES method . 4
7.2.1 Principle . 4
7.2.2 Reagents . 4
7.2.3 Apparatus and instruments. 4
7.2.4 Procedure . 5
7.2.5 Blank test . 5
7.2.6 Drawing of the calibration curve . 5
7.2.7 Calculation . 5
7.3 Acid pressure decomposition-CyDTA-zinc back titration method . 5
7.3.1 Principle . 5
7.3.2 Reagents . 6
7.3.3 Apparatus and instruments. 6
7.3.4 Procedure . 8
7.3.5 Blank test . 8
7.3.6 Calculation . 8
8 Determination of the total nitrogen content . 8
8.1 Classification of the determination methods . 8
8.2 Acid pressure decomposition-distillation separation-acidimetric titration method . 9
8.2.1 Principle . 9
8.2.2 Reagents . 9
8.2.3 Apparatus .10
8.2.4 Procedure .12
8.2.5 Recovery measurement .12
8.2.6 Calculation .13
8.3 Direct decomposition-distillation separation-acidimetric titration method .13
8.3.1 Principle .13
8.3.2 Reagents .13
8.3.3 Apparatus .13
8.3.4 Procedure .
...
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