ISO 1784-1976 rus PDF

Full title and description

ISO 1784:1976 — Aluminium alloys — Determination of zinc — EDTA titrimetric method. This International Standard specifies a titrimetric procedure using EDTA for the quantitative determination of zinc in aluminium alloys (applicable languages: English and French).

Abstract

The method is applicable to aluminium alloys that do not contain cadmium and that have zinc contents in the range 0,10 % to 12,0 % (mass/mass). The standard gives the principle and procedure of the EDTA titration, lists reagents and apparatus, describes sampling, expression of results and the required content of the test report.

General information

• Status: Published (confirmed/maintained as of last ISO review).
• Publication date: June 1976 (Edition 1: 1976-06).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.120.10 — Aluminium and aluminium alloys.
• Edition / version: Edition 1 (1976).
• Number of pages: 3 (technical content pages in the ISO publication).

Core bibliographic and lifecycle details as recorded by ISO and major standards distributors.

Scope

Specifies an EDTA titrimetric method for determining zinc in aluminium alloys that do not contain cadmium, valid for zinc contents between 0.10 % and 12.0 % (m/m). It covers required reagents and apparatus, sample preparation, titration procedure, calculation and reporting of results. The method is intended for routine laboratory analysis and quality control of wrought and cast aluminium alloys within the stated composition range.

Key topics and requirements

• EDTA titrimetric determination principle and step-by-step procedure.
• Applicable alloy types: aluminium alloys without cadmium and with Zn content 0.10–12.0 % (m/m).
• Reagent and apparatus specifications necessary to obtain reliable titration results.
• Sampling and sample preparation guidance to ensure representative analysis.
• Calculation methods, expression of results and required details for the test report.
• Limitations and exclusions (not applicable to alloys containing cadmium or outside the stated Zn range).

Typical use and users

Analytical and metallurgical laboratories performing chemical composition testing of aluminium and aluminium alloys; quality control and production laboratories in aluminium manufacturing and processing; materials engineers and specification writers who need a standardized laboratory method for zinc determination; standards bodies and conformity assessment organizations referencing chemical-analysis procedures.

Related standards

ISO 1784:1976 replaces the earlier ISO/R 798:1968 for this method. It sits within the broader family of ISO standards on aluminium and aluminium alloys (ICS 77.120.10) and is often consulted alongside chemical-composition and product standards (for example, contemporary EN/ISO product-chemistry standards used by material specifiers). National distributors and standards institutes list ISO 1784 among related product and chemical-analysis standards.

Keywords

aluminium alloys, zinc determination, EDTA titration, titrimetric method, chemical analysis, metallurgical testing, ISO 1784:1976, sampling, test report, quality control

FAQ

Q: What is this standard?

A: ISO 1784:1976 is an International Standard that specifies an EDTA titrimetric method for the determination of zinc in aluminium alloys.

Q: What does it cover?

A: It covers the principle and procedure of the EDTA titration for zinc, required reagents and apparatus, sampling and sample preparation, calculation and expression of results, and the contents of the test report. The method is valid for alloys without cadmium and for zinc contents between 0.10 % and 12.0 % (m/m).

Q: Who typically uses it?

A: Analytical/metallurgical laboratories, quality and production control labs in aluminium industry, materials engineers, and standards/conformity bodies that need a standardized zinc-analysis method.

Q: Is it current or superseded?

A: According to ISO records, ISO 1784:1976 remains the published edition and was reviewed/confirmed in ISO review cycles (the ISO record indicates confirmation during periodic review). Users should check with their national standards body or ISO catalog for the absolute current status before relying on it for regulatory compliance.

Q: Is it part of a series?

A: It forms part of ISO’s body of standards on aluminium and aluminium alloys (ICS 77.120.10) and replaces the earlier ISO/R 798:1968 method. It is typically used alongside other ISO/EN standards that define chemical composition and product specifications for aluminium alloys.

Q: What are the key keywords?

A: aluminium, zinc, EDTA, titration, chemical analysis, alloy testing, ISO 1784, quality control.