ASTM E566-19 rus PDF

Full title and description

ASTM E566-19 — Standard Practice for Electromagnetic (Eddy Current/Magnetic Induction) Sorting of Ferrous Metals. This practice describes procedures for sorting ferrous metals using electromagnetic (eddy current / magnetic induction) instruments (absolute or comparator coils) to detect differences in mass, shape, conductivity, permeability and other properties that affect electromagnetic response.

Abstract

This standard practice provides guidance on the setup, selection of reference standards, and operation of electromagnetic sorting equipment intended to separate or classify ferrous metal items by electromagnetic response. It addresses use of absolute and comparator coil systems, interpretation of signals for variations in alloy/hardness/geometry, and the establishment of sorting thresholds for production or recycling applications.

General information

• Status: Published (2019 edition), later revised by a 2024 update (see Notes below).
• Publication date: Approved Feb 1, 2019 (ASTM E566-19 edition).
• Publisher: ASTM International.
• ICS / categories: 77.020 — Production of metals.
• Edition / version: E566-19 (2019 edition).
• Number of pages: 5 pages (concise practice document).

Scope

This practice covers procedures for sorting ferrous metals using electromagnetic (eddy current / magnetic induction) techniques. It applies to instruments employing absolute or comparator-type coils and addresses selection of reference standards and methods to determine feasibility and establish sorting criteria for differences in material properties and geometry. It is intended as a practical guidance document for determining and implementing electromagnetic sorting rather than a full safety manual.

Key topics and requirements

• Principles of electromagnetic (eddy current / magnetic induction) sorting and measurement.
• Types of coils and instrument configurations: absolute vs comparator coils.
• Selection and use of reference standards to establish sorting thresholds.
• Factors that influence electromagnetic response: conductivity, permeability, mass, shape, hardness, and alloying elements.
• Procedure outline for feasibility testing, calibration, and routine sorting operations.
• Notes on limitations and the user’s responsibility for safety and regulatory compliance.

Typical use and users

Used by scrap and recycling facilities, metal sortation lines, non‑destructive testing (NDT) labs, quality/inspection teams in metallurgy and manufacturing, and equipment suppliers integrating electromagnetic sorting systems. Typical applications include segregation of mixed ferrous scrap, removal of nonconforming alloy fractions, and pre‑processing for melting or remanufacturing.

Related standards

Related electromagnetic and NDT practices and test methods (examples) include other ASTM electromagnetic/eddy‑current practices for examination and coating measurement; users often consult adjacent ASTM E‑series documents on electromagnetic testing and industry‑specific NDT standards when implementing sorting systems. The E566 work item has been part of the committee activity that also references related E‑series practices.

Keywords

electromagnetic sorting, eddy current, magnetic induction, ferrous metals, comparator coil, absolute coil, reference standards, metal recycling, nondestructive testing.

FAQ

Q: What is this standard?

A: ASTM E566-19 is a short ASTM practice describing procedures and considerations for electromagnetic (eddy current / magnetic induction) sorting of ferrous metals using absolute or comparator coil instruments.

Q: What does it cover?

A: It covers equipment approaches (absolute vs comparator coils), selection of reference standards, feasibility testing, and establishment of sorting criteria to distinguish variations in conductivity, permeability, shape, mass and other factors that affect electromagnetic response.

Q: Who typically uses it?

A: Operators and engineers at recycling and scrap facilities, metal processors, NDT practitioners, equipment manufacturers and quality control personnel involved in material segregation and preprocessing for metallurgical operations.

Q: Is it current or superseded?

A: The E566-19 edition was approved Feb 1, 2019. The practice has since been revised by a later edition designated ASTM E566-24 (issued 2024), so users should consult the 2024 revision for the most current requirements and editorial changes.

Q: Is it part of a series?

A: It is part of the ASTM body of standards dealing with electromagnetic (eddy‑current / magnetic) testing and sorting practices within the E Committee scope; related E‑series standards address specific electromagnetic examination and measurement methods.

Q: What are the key keywords?

A: Electromagnetic sorting, eddy current, magnetic induction, ferrous metals, comparator coil, absolute coil, reference standard, sorting threshold.