ISO 5189:2023 PDF

Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of metal impurities in silicon dioxide powders using inductively coupled plasma-optical emission spectrometry

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Title (English):

ISO 5189:2023

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 10
Publication date:: September 7, 2023
Edition:: ISO IS 5189 edition 1 version 1
ICS:: 81.060.30

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Description (English):

This document specifies methods for the chemical analysis of metal impurities present in silicon dioxide powders used as a raw material for fine ceramics. It stipulates the methods for the determination of metal impurity elements in silicon dioxide powders that are decomposed by acid decomposition. The aluminium, cadmium, calcium, copper, iron, lead, lithium, magnesium, manganese, nickel, potassium, sodium, titanium, zinc and zirconium contents in the test solution are determined by inductively coupled plasma-optical emission spectrometry (ICP-OES).

Technical details

Technical committee: ISO/TC 206 - Fine ceramics
SKU: ISO 5189:2023

Abstract

Overview

ISO 5189:2023 specifies standardized chemical analysis methods for metal impurities in silicon dioxide (SiO2) powders used as raw materials for fine ceramics (advanced/technical ceramics). The standard defines sample preparation, acid decomposition, ICP-OES measurement and calculation/reporting procedures to determine Al, Cd, Ca, Cu, Fe, Pb, Li, Mg, Mn, Ni, K, Na, Ti, Zn and Zr in silica powders. Typical reporting is in mg/kg (dry basis) over the range 1.0–100 mg/kg using inductively coupled plasma–optical emission spectrometry (ICP‑OES).

Key topics and technical requirements

Analytes & ranges: 15 metal impurity elements, each with a working range of 1.0 mg/kg to 100 mg/kg.
Sample preparation: Follow ISO 8656‑1 sampling; dry 10 g at 110 °C ± 5 °C for 2 h; weigh 1.0 g ±0.1 mg test portion.
Acid decomposition: Use analytical‑grade reagents. Typical decomposition: 15 mL HF + 3 mL HNO3, heat to dryness, then dissolve residue with HCl solution for Al/Fe/Ti/Mn or HNO3 solution for other elements; make up to 10 mL volumetric flask to produce the sample solution. Blank decomposition must be run in parallel.
Reagents & instrumentation: HF, HNO3, HCl (and diluted mixtures), high‑purity water per ISO 3696, and ICP‑OES for element determination.
Calibration & measurement: Prepare mixed standard (each element 5 mg/L) and calibration series (1, 5, 10, 15, 20 mL to 100 mL) using appropriate acid matrix. Choose ICP‑OES wavelengths free of spectral overlap (standard examples provided in ISO 5189:2023).
Calculation & reporting: Compute element content from calibration curves and blank-corrected concentrations using the standard formula. Report values to two significant figures in mg/kg (dry). Repeat measurements and follow specified tolerance rules (5 mg/kg tolerance for amounts

Related standards

Mentioned in the description and other ISO standards

Overview

Key topics and technical requirements

Analytes & ranges: 15 metal impurity elements, each with a working range of 1.0 mg/kg to 100 mg/kg.
Sample preparation: Follow ISO 8656‑1 sampling; dry 10 g at 110 °C ± 5 °C for 2 h; weigh 1.0 g ±0.1 mg test portion.
Acid decomposition: Use analytical‑grade reagents. Typical decomposition: 15 mL HF + 3 mL HNO3, heat to dryness, then dissolve residue with HCl solution for Al/Fe/Ti/Mn or HNO3 solution for other elements; make up to 10 mL volumetric flask to produce the sample solution. Blank decomposition must be run in parallel.
Reagents & instrumentation: HF, HNO3, HCl (and diluted mixtures), high‑purity water per ISO 3696, and ICP‑OES for element determination.
Calibration & measurement: Prepare mixed standard (each element 5 mg/L) and calibration series (1, 5, 10, 15, 20 mL to 100 mL) using appropriate acid matrix. Choose ICP‑OES wavelengths free of spectral overlap (standard examples provided in ISO 5189:2023).
Calculation & reporting: Compute element content from calibration curves and blank-corrected concentrations using the standard formula. Report values to two significant figures in mg/kg (dry). Repeat measurements and follow specified tolerance rules (5 mg/kg tolerance for amounts

ISO 5189:2023 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

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