ISO 3256-1977 rus PDF

Full title and description

ISO 3256:1977 — Aluminium and aluminium alloys — Determination of magnesium — Atomic absorption spectrophotometric method. Specifies an atomic-absorption procedure for the quantitative determination of magnesium in aluminium and aluminium alloys, covering principle, reagents, apparatus, sampling, procedure, expression of results and test reporting.

Abstract

This International Standard defines an atomic absorption spectrophotometric method for measuring magnesium in aluminium and aluminium alloys. The method is applicable to products having magnesium contents in the approximate range 0.01 % to 5 % (m/m) and provides requirements for sample preparation, calibration, instrumental conditions, blanks and expression of results.

General information

• Status: Published (current edition confirmed/reviewed).
• Publication date: May 1977 (1977-05).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.120.10 — Aluminium and aluminium alloys.
• Edition / version: Edition 1 (1977).
• Number of pages: 4.

Key bibliographic and status information above is taken from ISO bibliographic records and public catalogues.

Scope

Applies to the determination of magnesium in aluminium and its alloys by atomic absorption spectrophotometry. Covers the analytical scope (typical concentration range 0.01–5 % m/m), necessary reagents and standards, recommended apparatus and instrumental settings, sample dissolution and preparation, procedural steps for measurement, calculation and reporting of results, and requirements for quality controls and blanks.

Key topics and requirements

• Principle of atomic absorption spectrophotometric determination of magnesium in aluminium matrices.
• Reagents and preparation of calibration solutions and matrix-matched standards.
• Sample dissolution and treatment to avoid interferences and losses.
• Instrumental conditions: lamp, wavelength, flame/atomizer conditions, sensitivity and blank correction.
• Calibration, quality control checks, use of blanks and standard additions where required.
• Calculation of magnesium content (expression as % m/m) and reporting format for test results.

Typical use and users

Used by metallurgical and chemical laboratories performing compositional analysis of aluminium and aluminium alloys, including quality-control laboratories in aluminium production and processing plants, research laboratories, material inspection bodies, and standards organizations. Analysts use the method for routine control, acceptance testing and verification of alloy composition.

Related standards

Related ISO standards include other analytical methods for elements in aluminium and aluminium alloys (for example complexometric and other spectrometric methods) and a range of element-specific ISO test methods produced by ISO/TC 79. Standards addressing determination of magnesium by other techniques and related elemental determinations are published within the same series of ISO methods for aluminium analysis.

Keywords

ISO 3256:1977; aluminium; aluminium alloys; magnesium determination; atomic absorption spectrophotometry; AAS; analytical method; alloy composition; quality control; ISO/TC 79.

FAQ

Q: What is this standard?

A: ISO 3256:1977 is an International Standard that specifies an atomic absorption spectrophotometric method for the determination of magnesium in aluminium and aluminium alloys.

Q: What does it cover?

A: It covers the principle, reagents, apparatus, sampling and sample preparation, procedural steps for measurement, calibration and expression of results, and reporting requirements for magnesium determinations in the approximate range 0.01 % to 5 % (m/m).

Q: Who typically uses it?

A: Analytical chemists and technicians in metallurgical and quality-control laboratories, aluminium manufacturers and processors, research institutions and conformity assessment bodies.

Q: Is it current or superseded?

A: The 1977 edition is the published International Standard; bibliographic records indicate it has been reviewed in subsequent maintenance cycles and remains the published edition in databases consulted. For procurement or use, check with the national standards body or ISO for any later revisions or replacements before relying on the method for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is part of the set of ISO analytical methods for aluminium and its alloys developed under ISO/TC 79; related standards cover determination of other elements by complementary analytical techniques (complexometric, photometric, flame AAS, etc.).

Q: What are the key keywords?

A: Aluminium, aluminium alloys, magnesium, atomic absorption, AAS, analytical method, ISO 3256, alloy analysis, quality control.