Name: EN ISO 14720-2:2013
Brand: CEN

Testing of ceramic raw and basic materials - Determination of sulfur in powders and granules of non-oxidic ceramic raw and basic materials - Part 2: Inductively coupled plasma optical emission spectrometry (ICP/OES) or ion chromatography after burning in an oxygen flow (ISO 14720-2:2013)

Published date

06-03-2013

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Apparatus
7 Reagents
8 Sampling and sample preparation
9 Preparation
10 Calibration
11 Performance
12 Calculation and report of the results
13 Precision
14 Test report
Annex A (informative) - Example of a combustion device
Annex B (informative) - Example for suitable operating
        parameters for the determination of sulfur by
        ion chromatography
Annex C (informative) - Example for suitable operating
        parameters for the determination of sulfur by
        inductively coupled plasma optical emission
        spectroscopy
Annex D (informative) - Results of the round-robin test
Annex E (informative) - Information regarding the validation
        of the uncertainty of the mean value
Annex F (informative) - Commercial Certified Reference
        Materials (CRM)
Bibliography

This part of ISO 14720 defines a method for the determination of sulfur in powdered and granular non-oxidic ceramic raw materials and materials, which are completely oxidized at a higher temperature in an oxygen atmosphere, e.g. carbon and graphite materials.

For materials which are not completely oxidizable under these conditions, it is possible to determine sulfur that can be released under these conditions, e.g. the adherent sulfur.

This part of ISO 14720 is applicable for materials with mass fractions of sulfur ≤ 10 % and mass fractions of ash < 20 %, The defined method is limited for materials with mass fractions of barium < 10 mg/kg, because the sulfur bonded in barium sulfate is not detectable with this method.

For the lower detection limit of this method, a mass fraction of sulfur of 0,5 mg/kg in the case of inductively coupled plasma optical emission spectrometry (ICP/OES) and 5 mg/kg in the case of ion chromatography (IC) has to be considered as a recommended value.

Committee	CEN/TC 187
DevelopmentNote	Supersedes PREN ISO 14720-2. (03/2013)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
UNI EN ISO 14720-2 : 2013	Identical
I.S. EN ISO 14720-2:2013	Identical
NEN EN ISO 14720-2 : 2013	Identical
NF EN ISO 14720-2 : 2013	Identical
BS EN ISO 14720-2:2013	Identical
UNE-EN ISO 14720-2:2013	Identical
DIN EN ISO 14720-2:2013-06	Identical
PN EN ISO 14720-2 : 2013	Identical
NS EN ISO 14720-2 : 2013	Identical
ISO 14720-2:2013	Identical
SN EN ISO 14720-2 : 2013	Identical
NBN EN ISO 14720-2 : 2013	Identical

ISO 5725-4:1994	Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
ISO 11885:2007	Water quality Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
ISO 10304-1:2007	Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 21748:2017	Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty evaluation
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
ISO 8656-1:1988	Refractory products Sampling of raw materials and unshaped products Part 1: Sampling scheme
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)