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XB/T 307-2025High-purity holmium metal (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

April 10, 2025

Implementation date

November 1, 2025

Scope

XB/T 307-2025 (High-purity holmium metal) is available as an English-translated PDF.

XB/T 307-2025 — This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and accompanying documents for high-purity holmium metal.

This document applies to high-purity holmium metal produced by purification methods such as vacuum refining, vacuum distillation, and zone melting.

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Document preview — XB/T 307-2025

National Standard of the People's Republic of China

ICS: 77.150.99
Classification: H 65

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and accompanying documents for high-purity holmium metal. This document applies to high-purity holmium metal produced by purification methods such as vacuum refining, vacuum distillation, and zone melting. It is mainly used in holmium-copper alloys and high-purity holmium metal targets.

Document data

International classification (ICS): 77.150.99.

Chinese classification (CCS): H65.

Estimated length of the Chinese original: 7,746 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 5 pages — is available in the English PDF.

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