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UNI EN ISO 12677 : 2011

Current

Current

The latest, up-to-date edition.

CHEMICAL ANALYSIS OF REFRACTORY PRODUCTS BY X-RAY FLUORESCENCE (XRF) - FUSED CAST-BEAD METHOD

Published date

26-10-2011

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Foreword
1 Scope
2 Normative references
3 Types of material
4 Principle
5 Apparatus
6 Sample grinding
7 Loss on ignition (and/or drying)
8 Flux
9 Fusion casting procedures
10 Calibration
11 Corrections
12 Reproducibility and repeatability
13 Accuracy determined by certified reference materials
14 Definitions of limits of detection
15 Test report
Annex A (normative) - Calibration range and required
        detection limits
Annex B (normative) - Corrections for tungsten carbide
        grinding media
Annex C (informative) - Examples of fluxes/flux ratios
Annex D (normative) - Examples of CRM to be used to
        check synthetic calibrations
Annex E (normative) - Examples of SeRM
Annex F (normative) - Equation for theoretical calculations
Annex G (normative) - Certified reference materials (CRMs)
Annex H (normative) - Method of inter-element correction
        used to compensate for the effects of co-existing
        components when using SeRM for calibration
Annex I (normative) - Standard deviations achieved with
        certified reference materials
Bibliography

Describes a method for the chemical analysis of refractory and technical ceramic raw materials, intermediates and products, by means of the X-ray fluorescence (XRF) fused cast-bead method.

Committee
CT 700
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Current
Supersedes

AS 2503.6-2007 Refractories and refractory materials - Chemical analysis Refractories, refractory mortars and silicate materials - Determination of major and minor elements - Wavelength dispersive X-ray fluorescence spectrometry using lithium borate fusion (Reconfirmed 2017)
ISO 565:1990 Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings
ISO Guide 35:2017 Reference materials — Guidance for characterization and assessment of homogeneity and stability
ISO 21068-2:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products — Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon
ISO 3534-2:2006 Statistics — Vocabulary and symbols — Part 2: Applied statistics
ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products — Part 1: General information and sample preparation
ISO 21068-3:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products — Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
ISO 26845:2008 Chemical analysis of refractories General requirements for wet chemical analysis, atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) methods

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