ISO 4749-1984 PDF

Full title and description

ISO 4749:1984 — Copper alloys — Determination of lead content — Flame atomic absorption spectrometric method. This International Standard specifies a flame atomic absorption spectrometric (FAAS) procedure for determining lead in copper and copper alloys, covering principle, reagents, apparatus, sampling, procedure, expression of results and content of the test report.

Abstract

The method is applicable to lead contents as an alloying element or impurity in the range 0.01 % to 5.0 % (m/m). By modifying the sample mass the lower limit of detection may be extended to about 0.002 % (m/m). ISO 4749 defines the analytical technique, required reagents and apparatus, sample preparation and the calculation and reporting of results.

General information

• Status: Published — International Standard (confirmed in ISO systematic review 2023).
• Publication date: 1 March 1984 (Edition 1, 1984).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.120.30 (Copper and copper alloys).
• Edition / version: Edition 1 — 1984.
• Number of pages: 4.

Scope

Specifies a FAAS method for determination of lead in all types of copper alloys (unwrought, wrought and cast) within the mass-fraction range of about 0.01 % to 5.0 %; with suitable sample‑mass adjustments the practical lower limit can be extended to about 0.002 % (m/m). The standard covers principle, reagents, apparatus, sampling, analytical procedure, expression of results and test-report content.

Key topics and requirements

• Analytical principle: flame atomic absorption spectrometry for lead determination (FAAS) at the appropriate analytical wavelength and using a lead hollow‑cathode lamp or equivalent light source.
• Applicability range: nominally 0.01 % to 5.0 % (m/m) lead, extendable to ≈0.002 % by modifying test portion mass.
• Specifies required reagents and preparation of calibration standards and blank solutions to ensure accurate quantification.
• Describes apparatus and instrumental settings typical for FAAS (nebulizer/aspiration system, flame type, burner conditions) and sample dissolution/digestion procedures appropriate for copper alloys.
• Sampling and sample-preparation guidance for representative test portions from unwrought, wrought or cast products, plus calculation and reporting rules for results and expression of uncertainty.

Typical use and users

Used by metallurgical and chemical testing laboratories, QA/QC personnel in copper-alloy production and fabrication, materials engineers, conformity-assessment bodies and standards committees. Typical applications include routine quality control, incoming material inspection, chemical composition verification against product specifications and research/characterization of copper alloys.

Related standards

European and national standards exist that specify FAAS procedures for lead in copper alloys and related determinations (for example EN 15622:2010 covers lead in copper and copper alloys by FAAS and provides a modern regional equivalent/extension of FAAS lead-determination methods). ISO closely related methods for other elements in copper alloys include ISO 4740 (zinc by FAAS) and other ISO methods for analyte determination in non‑ferrous materials.

Keywords

ISO 4749, copper alloys, lead determination, flame atomic absorption spectrometry, FAAS, chemical analysis, metallurgical testing, sampling, test report.

FAQ

Q: What is this standard?

A: ISO 4749:1984 is an International Standard that specifies a flame atomic absorption spectrometric method for determining lead content in copper alloys.

Q: What does it cover?

A: It covers the analytical principle, reagents, apparatus, sampling and sample preparation, the detailed procedure for FAAS measurement of lead, calculation and expression of results and the content of the test report; applicable to lead mass fractions typically from 0.01 % to 5.0 % and extendable to about 0.002 % with adjusted sample mass.

Q: Who typically uses it?

A: Analytical and metallurgical laboratories, manufacturers of copper alloys and components, quality-control and inspection teams, research laboratories and standards bodies responsible for materials specification and conformity assessment.

Q: Is it current or superseded?

A: As published in March 1984 (Edition 1), ISO 4749 was reviewed and the publication was confirmed in ISO's systematic review process (confirmed in 2023); the 1984 edition therefore remains the current ISO document. Users should check their national/regional standards bodies for any localized equivalents or more recent regional standards that complement or update procedural details.

Q: Is it part of a series?

A: ISO 4749 is one of a family of ISO methods covering FAAS determinations of different elements in copper and related materials; examples include ISO methods for zinc and other elements and regional standards such as EN 15622 that cover the same analyte (lead) by FAAS. These documents are commonly cross‑referenced when establishing a complete chemical‑analysis program for copper alloys.

Q: What are the key keywords?

A: Copper alloys, lead, FAAS, flame atomic absorption, chemical analysis, sampling, test report, ISO 4749.