ISO 21079-3:2008 PDF

Chemical analysis of refractories containing alumina, zirconia, and silica — Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) — Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP -AES)

Open preview (PDF)

Title (English):

ISO 21079-3:2008

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 13
Publication date:: April 1, 2008
Edition:: ISO IS 21079 edition 1 version 1
ICS:: 71.040.40

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

ISO 21079-3:2008 specifies flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP-AES) methods for the analysis of AZS (alumina, zirconia, and silica) refractory products (containing 5 % to 45 % of ZrO2) and raw materials. ISO 21079-3:2008 is not applicable to MgO-based refractories. ISO 21079-3:2008 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677.

Technical details

Technical committee: ISO/TC 33 - Refractories
SKU: ISO 21079-3:2008

Abstract

Overview

ISO 21079-3:2008 specifies instrumental analytical methods - flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma atomic emission spectrometry (ICP‑AES / ICP‑AES) - for chemical analysis of AZS refractories (alumina–zirconia–silica) and associated raw materials containing 5 % to 45 % ZrO2. This part provides an alternative to X‑ray fluorescence (XRF, ISO 12677) and is not applicable to MgO‑based refractories. The standard focuses on procedures for sample preparation (linked to Part 1), calibration, blanking, measurement and calculation of oxide mass fractions.

Key topics and technical requirements

Analytical methods covered: ICP‑AES for multi‑element emission analysis and FAAS for alkali/alkaline-earth and chromium determinations.
Measured components: SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, Cr2O3, HfO2 (with specified application ranges).
- Example ICP‑AES application ranges: SiO2 (0.1–10 %), Al2O3 (1–10 %), Fe2O3 (0.01–2 %), TiO2 (0.01–5 %), Cr2O3 (0.01–3 %), HfO2 (0.01–2 %).
Sample solutions / stock solutions: Methods refer to stock solutions (S1, S’1, S’’1, S4) produced according to ISO 21079‑1 (apparatus, reagents, dissolution). Note: SiO2 can be residual silica or total SiO2 depending on which stock solution is used.
Calibration and internal standards: Matrix‑matched calibration series (series 2/3/4) and use of internal standards (e.g., scandium or yttrium) are specified to ensure accuracy.
Procedural elements: preparation of calibration series, blank tests, emission/absorption measurements at example wavelengths (e.g., Si 251.611 nm), and calculation of oxide mass fractions using the prescribed equations and dilution factors.
Reporting: Test report content and calculation steps are defined to support traceable, reproducible results.

Practical applications

Quality control and incoming raw‑material inspection for AZS refractory manufacturers
Routine analysis in metallurgical and materials testing laboratories
Alternative or complementary method to XRF when wet‑chemical instrumental techniques are preferred or required
Research and development work involving compositional verification of AZS products

Who should use this standard

Refractory manufacturers and product development teams
Industrial QA/QC and analytical laboratories performing refractory chemical analysis
Accredited testing bodies and conformity assessment organizations
Materials scientists and process engineers in steel, cement and high‑temperature industries

Related standards

ISO 21079‑1:2008 - Apparatus, reagents and dissolution (sample prep referenced)
ISO 21079‑2:2008 - Wet chemical analysis
ISO 12677 - XRF method for refractories (alternative method)
ISO 26845 - General requirements for wet chemical, AAS and ICP methods

Keywords: ISO 21079‑3, FAAS, ICP‑AES, AZS refractory analysis, alumina zirconia silica, ZrO2, refractory chemical analysis, XRF alternative, refractory QC.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Analytical methods covered: ICP‑AES for multi‑element emission analysis and FAAS for alkali/alkaline-earth and chromium determinations.
Measured components: SiO2, Al2O3, Fe2O3, TiO2, CaO, MgO, Na2O, K2O, Cr2O3, HfO2 (with specified application ranges).
- Example ICP‑AES application ranges: SiO2 (0.1–10 %), Al2O3 (1–10 %), Fe2O3 (0.01–2 %), TiO2 (0.01–5 %), Cr2O3 (0.01–3 %), HfO2 (0.01–2 %).
Sample solutions / stock solutions: Methods refer to stock solutions (S1, S’1, S’’1, S4) produced according to ISO 21079‑1 (apparatus, reagents, dissolution). Note: SiO2 can be residual silica or total SiO2 depending on which stock solution is used.
Calibration and internal standards: Matrix‑matched calibration series (series 2/3/4) and use of internal standards (e.g., scandium or yttrium) are specified to ensure accuracy.
Procedural elements: preparation of calibration series, blank tests, emission/absorption measurements at example wavelengths (e.g., Si 251.611 nm), and calculation of oxide mass fractions using the prescribed equations and dilution factors.
Reporting: Test report content and calculation steps are defined to support traceable, reproducible results.

Practical applications

Quality control and incoming raw‑material inspection for AZS refractory manufacturers
Routine analysis in metallurgical and materials testing laboratories
Alternative or complementary method to XRF when wet‑chemical instrumental techniques are preferred or required
Research and development work involving compositional verification of AZS products

Who should use this standard

Refractory manufacturers and product development teams
Industrial QA/QC and analytical laboratories performing refractory chemical analysis
Accredited testing bodies and conformity assessment organizations
Materials scientists and process engineers in steel, cement and high‑temperature industries

Related standards

ISO 21079‑1:2008 - Apparatus, reagents and dissolution (sample prep referenced)
ISO 21079‑2:2008 - Wet chemical analysis
ISO 12677 - XRF method for refractories (alternative method)
ISO 26845 - General requirements for wet chemical, AAS and ICP methods

Keywords: ISO 21079‑3, FAAS, ICP‑AES, AZS refractory analysis, alumina zirconia silica, ZrO2, refractory chemical analysis, XRF alternative, refractory QC.

ISO 21079-3:2008 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Related standards

Chemical analysis of refractories containing alumina, zirconia and silica — Refractories containing 5 percent…

Chemical analysis of refractories containing alumina, zirconia, and silica — Refractories containing 5 percen…

Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method (ISO 12677:2011)

Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 percent…

Chemical analysis of refractories - General requirements for wet chemical analysis, atomic absorption spectro…

Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percen…