ISO 1553-1976 rus PDF

Full title and description

ISO 1553:1976 — Unalloyed copper containing not less than 99,90 % of copper — Determination of copper content — Electrolytic method. This International Standard specifies an electrolytic (coulometric/electrolytic deposition) procedure for determining the copper content of very-high-purity unalloyed copper (≥99.90 % Cu).

Abstract

The standard describes an electrolytic technique for depositing copper on a cathode and measuring copper content in samples of unalloyed copper that do not contain elements forming insoluble residues in the electrolytic solution. Annex A provides guidance on test portions; Annex B gives a spectrophotometric method for determining residual copper remaining in the electrolyte after deposition. The published International Standard has been withdrawn.

General information

• Status: Withdrawn (Edition 1, 1976).
• Publication date: November 1976 (1976-11).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 77.120.30 (Copper and copper alloys).
• Edition / version: Edition 1 (1976).
• Number of pages: 4 pages (published document).

Scope

Specifies an electrolytic method for determining the copper content of unalloyed copper with minimum copper content of 99.90 %. The procedure is intended for materials that do not introduce insoluble residues into the electrolytic solution; silver, if present, is deposited together with copper and reported as copper. The scope includes provision of apparatus requirements, test-portion guidance (Annex A) and a supplementary spectrophotometric check for residual copper (Annex B).

Key topics and requirements

• Electrolytic deposition method for quantitative determination of copper in very-high-purity unalloyed copper.
• Apparatus and electrode requirements (e.g., platinum cathode specifications and construction details for effective deposition).
• Test-portion specification and handling guidance (see Annex A).
• Supplementary spectrophotometric procedure for measuring residual copper in the electrolyte after deposition (Annex B).
• Limitations: not applicable to samples containing elements that form insoluble electrolytic residues.

Typical use and users

Used historically by chemical laboratories, metallurgical quality-control units, refineries and producers of high-purity copper for certifying copper content in production, incoming inspection, and materials characterization. Typical users include analytical chemists, laboratory technicians, materials engineers and standards bodies or testing houses handling high-purity copper.

Related standards

Closely related ISO standards for copper and copper alloys (for example ISO 1554:1976 dealing with copper alloys analytical methods) and national adoptions such as GOST 13938.1‑78 (Copper — Methods for determination of copper), which corresponds to ISO 1553:1976 in national practice. Note that ISO 1553:1976 itself has been withdrawn.

Keywords

ISO 1553:1976; unalloyed copper; copper determination; electrolytic method; electrolysis; platinum cathode; spectrophotometric residual copper; high-purity copper; analytical chemistry; GOST 13938.1‑78.

FAQ

Q: What is this standard?

A: ISO 1553:1976 is an ISO International Standard that specified an electrolytic method for determining the copper content of unalloyed copper containing at least 99.90 % copper. The document was published in November 1976 and has since been withdrawn.

Q: What does it cover?

A: It covers an electrolytic deposition technique for quantitative copper determination, requirements for electrolysis apparatus and electrodes, instructions for test portions (Annex A) and a spectrophotometric procedure for residual copper (Annex B). It excludes materials that produce insoluble electrolytic residues.

Q: Who typically uses it?

A: Analytical laboratories, metallurgical and quality-control personnel in copper production and processing, testing houses and standards organizations that required a precise method for certifying very-high-purity copper.

Q: Is it current or superseded?

A: ISO 1553:1976 is withdrawn. Records list it as withdrawn (Edition 1, 1976); related national standards (for example GOST 13938.1‑78) may reference or have incorporated the method in national practice, but the ISO document itself is no longer active.

Q: Is it part of a series?

A: It belongs to the body of ISO standards addressing copper and copper-alloy analysis (ICS 77.120.30). Neighboring standards include ISO 1554:1976 (methods for copper alloys) and other analytical-method standards for copper and alloys.

Q: What are the key keywords?

A: Unalloyed copper; electrolytic determination; copper content; platinum cathode; spectrophotometric residual measurement; high-purity copper; ISO 1553:1976; GOST 13938.1‑78.