ISO 10058-3:2008

Overview

ISO 10058-3:2008 specifies instrumental methods - flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma atomic emission spectrometry (ICP‑AES / ICP‑AES) - for the chemical analysis of magnesite and dolomite refractory products and their raw materials. It is published by ISO as Part 3 of the ISO 10058 series and serves as an alternative to X‑ray fluorescence (XRF) methods for routine and precision determinations.

The standard covers:

• Use of AAS (FAAS) and ICP‑AES techniques for element/oxide determination.
• Applicable concentration ranges (after LOI correction), e.g. SiO2 0.1–10%, Al2O3 0.05–10%, CaO 0.01–10%, Fe2O3 0.01–10%, MnO 0.01–1%, Na2O/K2O 0.01–1%, P2O5 0.01–5%, LOI 0.01–60%.

Key topics and technical requirements

• Scope and ranges: Component ranges and limits of application are defined (see Table 1 in the standard).
• Sample dissolution and preparation: Instrumental methods reference stock and matrix solutions prepared according to ISO 10058‑1 (apparatus, reagents and dissolution).
• ICP‑AES procedures:
  • Determination of residual and total SiO2, Al2O3, Fe2O3, TiO2, MnO, CaO, Cr2O3, ZrO2, Na2O and K2O using specified stock solutions.
  • Use of internal standards (example: Sc and Y mixed solution) and matrix matching to correct matrix effects.
  • Calibration series with mixed standard solutions; blank tests and calculation formulae for mass fractions.
  • Example analytical wavelengths provided (e.g., Si 251.611 nm, Al 396.152 nm, Fe 259.940 nm).
• FAAS procedures:
  • Determination of MnO, CaO, Cr2O3 and alkali oxides (using specified stock solutions and calibration).
• Quality control: Calibration graphs, blank corrections and calculation methods to report mass fractions (%) of oxides.

Practical applications and users

ISO 10058-3:2008 is used where accurate chemical analysis of magnesite and dolomite refractories is required as an alternative or complement to XRF. Typical use cases:

• Quality control and incoming raw‑material inspection in refractory manufacturing.
• Process control and batch certification in magnesia/dolomite refractory production.
• Analytical laboratories performing routine oxide determinations by FAAS or ICP‑AES.
• Research & development and materials characterization in metallurgical, ceramics and refractory sectors.

Target users include laboratory analysts, QA/QC managers, production engineers, materials scientists and standards professionals.

Related standards

• ISO 10058‑1:2008 - Apparatus, reagents, dissolution and gravimetric silica (referenced for sample prep).
• ISO 10058‑2:2008 - Wet chemical analysis.
• ISO 26845 - General requirements for wet chemical analysis, AAS and ICP‑AES methods.

Keywords: ISO 10058-3:2008, magnesite, dolomite, refractory products, FAAS, ICP-AES, AAS, chemical analysis, XRF alternative, oxide determination, quality control.