ISO 22928-1:2024

Name: ISO 22928-1:2024 — Rare earth — Analysis by wavelength dispersive x-ray fluorescence spectrometry (WD-XRFS) — Part 1: Determination of composition of rare earth magnet scrap using standardless XRF commercial packages
SKU: ISO 22928-1:2024
Price: 18000 RUB
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Rare earth — Analysis by wavelength dispersive x-ray fluorescence spectrometry (WD-XRFS) — Part 1: Determination of composition of rare earth magnet scrap using standardless XRF commercial packages

Название (английский):

ISO 22928-1:2024

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 29 февраля 2024 г.
Издание:: ISO IS 22928 edition 1 version 1
ICS:: 13.030.30

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Срок поставки:2 раб. дн. (перевод)

Цена:18 000 ₽

Описание (английский):

This document specifies a protocol for the application of semi-quantitative standardless wavelength dispersive X-ray fluorescence (WD-XRFS) commercial packages for the assessment of the concentration of rare earth elements (REEs) contained in magnet scrap from end-of-life (EOL) products intended for recycling.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 22928-1:2024 - Rare earth - Analysis by wavelength dispersive X‑ray fluorescence spectrometry (WD‑XRFS) - Part 1 specifies a practical protocol for using semi‑quantitative standardless WD‑XRF commercial packages to assess rare earth element (REE) concentrations in rare earth magnet scrap recovered from end‑of‑life (EOL) products for recycling. The standard covers safe handling, dismantling, demagnetization, sample preparation, instrument setup, measurement conditions and reporting requirements for standardless XRF analysis of magnet scrap.

Key topics and requirements

Scope and approach: Uses standardless wavelength dispersive XRF (WD‑XRFS) commercial software packages for semi‑quantitative analysis of REEs in magnet scrap intended for recycling.

Handling and preparation: Procedures for dismantling EOL components, cleaning, demagnetization (heat treatment or alternating fields), and sample forms (bulk and powders).

Apparatus and reagents: Lists required equipment such as WD‑XRFS instrument, furnace (up to 500 °C), demagnetizer, pulverizer/grinder, hydraulic press (300 MPa), vacuum desiccator, and analytical‑grade reagents (e.g., acetone, ethanol, alkaline cleaners).

Analytes and concentration ranges: Standardless XRF should analyse elements from Na to U; reported results are limited to elements > 1% mass fraction (10 g/kg). Example ranges for Nd‑Fe‑B magnet scrap include:

Major: Fe 1–70%, Nd 1–40%
Minor REEs/elements (Pr, Dy, Tb, Gd, Ce, Ho, Ga, Co, Ni, Cu, Nb, Al, Zn): 1–10%

Instrument setup and measurement: Guidance on measurement conditions, use of commercial standardless packages, and expression/reporting of semi‑quantitative results.

Reporting and traceability: Required metadata with results (supplier, product, gross mass, physical form, storage, production date, magnet type, recommended dismantling procedure).

Applications and users

ISO 22928-1:2024 is practical for:

Recycling facilities and recyclers assessing the REE content of magnet scrap for material recovery planning and sorting.

Analytical laboratories implementing WD‑XRFS standardless workflows for bulk screening of Nd‑Fe‑B and Sm‑Co magnet scrap.

Manufacturers and EOL processors needing compositional data to support circular‑economy strategies.

Policy makers, waste managers and supply‑chain stakeholders monitoring secondary REE resources and supporting recycling targets.

Benefits include faster, non‑destructive screening of magnet scrap, standardized reporting thresholds (≥1% mass fraction), and guidance to improve REE recovery efficiency.

Related standards

ISO 22444‑2 (Rare earth - Vocabulary - Metals and alloys)

ISO 22450 (Recycling of rare earth elements - Information requirements)

ISO/TS 22451 (Methods for measurement of REEs in industrial waste and EOL products)

Note: The document includes safety warnings; users must follow established laboratory safety and regulatory requirements when handling magnet scrap and hazardous reagents.

ISO 22928-1:2024

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

BS ISO 22444-2:2020

Rare earth. Vocabulary. Metals and their alloys.

BS ISO 22450:2020

Recycling of rare earth elements. Requirements for providing information on industrial waste and end-of-life…

PD ISO/TS 22451:2021

Recycling of rare earth elements. Methods for the measurement of rare earth elements in industrial waste and…