ISO 4155-2022 PDF

Full title and description

ST ISO 4155-2022 — Magnesium and magnesium alloys — Determination of nickel — Inductively coupled plasma optical emission spectrometric (ICP‑OES) method. This standard specifies an ICP‑OES test procedure for quantifying nickel in magnesium and its alloys within a low concentration range, including requirements for sample preparation, calibration and measurement to ensure traceable, repeatable results.

Abstract

Specifies an inductively coupled plasma optical emission spectrometric (ICP‑OES) method for the determination of nickel in magnesium and magnesium alloys. The method is intended for nickel mass fractions in the range 0,0002 % to 0,2 %. It defines procedure steps to obtain accurate quantitative results suitable for laboratory quality control and materials certification.

General information

• Status: Published.
• Publication date: 2022-05 (May 2022).
• Publisher: International Organization for Standardization (ISO); also published/adopted by national bodies (example: BSI as BS ISO 4155:2022).
• ICS / categories: 77.120.20 (Metallurgical analysis — magnesium and magnesium alloys).
• Edition / version: Edition 1 (2022).
• Number of pages: 10 (ISO official edition).

Scope

Defines an ICP‑OES analytical method for determining nickel content in magnesium and magnesium alloys. The scope covers nickel mass fractions from 0,0002 % up to 0,2 % and includes method performance elements such as sample dissolution/preparation, calibration, measurement and basic quality-control procedures needed to obtain defensible results in this concentration range. The standard is intended for use in metallurgical testing laboratories, alloy producers and conformity assessment activities.

Key topics and requirements

• Analytical technique: inductively coupled plasma optical emission spectrometry (ICP‑OES) as the prescribed measurement method.
• Concentration range: nickel mass fraction from 0,0002 % (2 mg/kg) to 0,2 % (2 000 mg/kg).
• Sample preparation: guidance on preparing magnesium/magnesium‑alloy samples for dissolution and introduction to the spectrometer (acidification/digestion and dilution practices are addressed in the procedure).
• Calibration and quality control: requirements for calibration standards, blank checks, and verification procedures to ensure measurement accuracy and repeatability.
• Interference management: considerations and corrective actions for spectral and matrix interferences typical of Mg alloy matrices when measuring trace nickel.

Typical use and users

Used by metallurgical and materials testing laboratories, alloy manufacturers, quality assurance and conformity assessment bodies, research institutions working with magnesium alloys, and suppliers requiring verification of nickel content for specification compliance and failure‑analysis purposes.

Related standards

Closely related to other magnesium and magnesium‑alloy chemical composition standards and national adoptions of ISO 4155 (for example BS ISO 4155:2022). Related ISO work from the same technical committee covers compositional and test methods for magnesium alloys (see related ISO magnesium standards listings).

Keywords

magnesium, magnesium alloys, nickel, ICP‑OES, inductively coupled plasma, optical emission spectrometry, chemical analysis, trace determination, metallurgical testing, quality control

FAQ

Q: What is this standard?

A: An ISO international standard (ISO 4155:2022) specifying an ICP‑OES analytical method for the determination of nickel in magnesium and magnesium alloys.

Q: What does it cover?

A: It covers the measurement procedure, sample preparation and calibration for nickel determination in Mg alloys for nickel mass fractions between 0,0002 % and 0,2 %.

Q: Who typically uses it?

A: Metallurgical testing laboratories, alloy producers, QA/QC personnel, research laboratories and conformity assessment organizations that need reliable, traceable nickel determinations in magnesium matrices.

Q: Is it current or superseded?

A: Current — published as an international standard in May 2022 (first edition). Users should check national catalogues for any later amendments or national deviations.

Q: Is it part of a series?

A: It is part of ISO technical work on magnesium and magnesium alloys (ISO/TC 79/SC 5 and related standards that define composition and test methods for Mg and Mg alloys). Individual countries may publish identical/adopted versions (for example BS ISO 4155:2022).

Q: What are the key keywords?

A: magnesium; magnesium alloys; nickel; ICP‑OES; optical emission spectrometry; chemical analysis; trace determination; metallurgical testing.