ISO 17942-2014 PDF

Full title and description

Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of boron nitride powders. Specifies standardised chemical analysis methods for boron nitride (BN) powders used as raw materials in fine/advanced ceramics, covering determination of boron, nitrogen, major and trace metallic impurities, carbon and oxygen and the recommended sample preparation and instrumental techniques.

Abstract

ISO 17942:2014 defines laboratory methods to determine total boron and free boron, total nitrogen, selected metallic impurities (Al, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Ni, K, Si, Na, Ti, V, Zn), carbon and oxygen in boron nitride powders. Analytical options include fusion followed by titration or ICP-OES for total boron, acid digestion or solvent extraction for free boron, inert gas fusion for nitrogen and oxygen, ICP techniques for many metals, AAS/FES for alkali metals, and combustion/IR or thermal conductivity for carbon. The document also addresses corrections for boron released by hydrolysis during sample treatment and specifies reagent and water purity requirements for reliable results.

General information

• Status: Published (confirmed current following ISO review).
• Publication date: August 2014 (2014-08).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 81.060.30 (Fine/advanced ceramics).
• Edition / version: Edition 1 (2014).
• Number of pages: 60 pages (official ISO publication pagination).

Scope

Applies to chemical analysis methods for boron nitride powders used as raw materials for fine ceramics. The standard establishes procedures for sample preparation, specifies analytical reagents and apparatus, and gives step-by-step methods to determine: total boron (fusion–titration or fusion–ICP-OES), free boron (acid digestion–ICP-OES or methanol extraction–ICP-OES), total nitrogen (acid pressure decomposition–distillation–titration or inert gas fusion–thermal conductivity), silicon (fusion–ICP-OES), a range of metallic impurities (acid decomposition or fusion followed by ICP techniques), sodium/potassium (AAS, FES or ICP-OES) and carbon/oxygen by combustion or inert-gas fusion techniques. The standard references requirements for laboratory water quality used in wet-chemical steps.

Key topics and requirements

• Determination of total boron: fusion followed by titration or fusion with ICP-OES.
• Determination of free (soluble) boron: acid digestion–ICP-OES or methanol extraction–ICP-OES, with hydrolysis correction where needed.
• Total nitrogen measurement: acid pressure decomposition with distillation/titration or inert-gas fusion with thermal conductivity detection.
• Determination of metallic impurities (Al, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Ni, Ti, V, Zn and others) by acid decomposition or fusion followed by ICP techniques.
• Alkali metals (Na, K): AAS, flame emission spectrometry or ICP-OES after acid decomposition.
• Carbon and oxygen: combustion with IR absorption or inert-gas fusion with appropriate detection.
• Sample handling, recommended reagent grades and laboratory water purity (reference to ISO 3696) to avoid contamination and ensure reproducibility.
• Reporting requirements: specified expression of results, detection limits, and corrections for artefactual boron formed during treatment.

Typical use and users

Used by analytical and quality-control laboratories, BN powder manufacturers and suppliers, ceramic material researchers, and standards organisations. Typical applications include raw-material certification, incoming inspection, process control in BN powder production, R&D on advanced ceramics, and regulatory or customer specification compliance verification.

Related standards

Standards produced by ISO/TC 206 (Fine ceramics) that cover complementary test methods, material characterisation and handling are related (other ISO methods for ceramic powder impurity analysis and physical testing). ISO 3696 (water for analytical laboratory use) is referenced for reagent/water purity requirements used in wet-chemical procedures. Laboratories often apply ISO 17942 alongside other material-specific chemical analysis methods for aluminium oxide or silicon nitride powders developed under the same technical committee.

Keywords

ISO 17942, boron nitride, BN powders, fine ceramics, advanced ceramics, chemical analysis, ICP-OES, fusion, acid digestion, combustion analysis, elemental impurities, laboratory methods.

FAQ

Q: What is this standard?

A: ISO 17942:2014 is an international standard that specifies laboratory methods for the chemical analysis of boron nitride powders used as raw materials for fine (advanced) ceramics, including procedures for determination of boron, nitrogen, metallic impurities, carbon and oxygen.

Q: What does it cover?

A: It covers sample preparation, recommended reagent and water purity, and analytical procedures (fusion, acid digestion, solvent extraction, ICP-OES, AAS/FES, combustion and inert-gas fusion techniques) for quantifying total and free boron, nitrogen, a list of metallic impurities, silicon, sodium/potassium, carbon and oxygen in BN powders. It also describes result reporting and corrections for artefactual boron from hydrolysis.

Q: Who typically uses it?

A: Quality-control and analytical chemistry laboratories, BN powder manufacturers, ceramic R&D groups and standards bodies that require reproducible, comparable chemical assay results for BN raw materials and incoming/outgoing material checks.

Q: Is it current or superseded?

A: The 2014 edition (Edition 1) is the published version; ISO documentation indicates this edition was reviewed and confirmed as current in subsequent ISO reviews. Users should verify the ISO catalogue or national standards body for any amendments or newer editions before adoption.

Q: Is it part of a series?

A: It is part of the body of ISO/TC 206 work on fine ceramics (advanced/technical ceramics). While not numbered as a multi-part series itself, it sits alongside other ISO methods for chemical and physical testing of ceramic powders and products developed by the same technical committee.

Q: What are the key keywords?

A: Boron nitride, BN powder, fine ceramics, chemical analysis, elemental impurities, ICP-OES, fusion, acid digestion, combustion analysis, ISO 17942:2014.