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YY/T 1807-2022Dentistry—Rapid nondestructive testing of main components in metal materials for prosthodontics—Handheld energy dispersive X-Ray fluorescence spectrometric method (semiquantitative method) (English PDF)

牙科学修复用金属材料中主要成分的快速无损检测手持式X射线荧光光谱仪法（半定量法）

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Issued by

NMPA

Level / Type

Industry · Recommended

Issue date

May 18, 2022

Implementation date

June 1, 2023

Scope

YY/T 1807-2022 is the English-translated version of 牙科学修复用金属材料中主要成分的快速无损检测手持式X射线荧光光谱仪法（半定量法）.

YY/T 1807-2022 is the Chinese pharmaceutical industry standard that describes how the main metallic elements of a dental metal are determined quickly and without destroying the piece, using a hand-held energy dispersive X-ray fluorescence spectrometer for semi-quantitative analysis.

It sets out the instrument and its calibration, the preparation and positioning of the sample, the measurement and how the result is read and reported.

It applies to the metals used to make dental prosthetic devices and restorations, both precious alloys such as gold-based and palladium-based alloys and non-precious ones such as cobalt-based and nickel-based alloys, titanium and its alloys, and to the finished restorations themselves - crowns, bridges, metal frameworks and porcelain-fused-to-metal work. Issued on 18 May 2022, it has applied since 1 June 2023.

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Document preview — YY/T 1807-2022

National Standard of the People's Republic of China

Classification: C 33

Issued by: National Medical Products Administration of the People's Republic of China

Foreword
1 Scope

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

1 Scope

This document describes the non-destructive determination of the content of major metal elements in metal materials for repair by a hand-held energy dispersive X-ray fluorescence spectrometer. Methods for detection of semi-quantitative methods.

This document applies to metal materials for the manufacture of dental prosthetic devices and restorations, including precious metals and their alloys (gold-based alloys, palladium-based alloys) etc.), semi-quantitative analysis of the content of main metal elements in non-precious metals and their alloys (cobalt-based alloys, nickel-based alloys, titanium and titanium alloys, etc.).

This document also applies to dental restorative devices and restorations made of metal materials, such as crowns/bridges, metal stents, porcelain crowns, bridges, etc. Semi-quantitative analysis of the content of major metal elements.

This document does not apply to metal elements with an element content of less than 1% (mass fraction).

This document applies to metal elements within the content ranges listed in Table 1.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 23 pages — is available in the English PDF.

Similar standards

GB/T 36226-2018|GB/T 31364-2015|GB/T 13748.23-2024|GB/T 6609.30-2022|GB/T 8151.22-2020|GB/T 3884.21-2018

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