ISO 24234:2021 牙科学 牙科汞齐合金用汞及合金

标准编号：ISO 24234:2021

中文名称：牙科学 牙科汞齐合金用汞及合金

英文名称：Dentistry — Dental amalgam

发布日期：2021-08

标准范围

本文件规定了适用于牙科汞合金制备的牙科汞合金粉末和牙科汞的要求和试验方法，以及该牙科汞合金的要求和试验方法，以及包装和标记要求。注:其中两项要求仅适用于牙科汞（如供应）。所有其他要求适用于牙科汞合金（如供应）和牙科汞合金。本文件不适用于以预胶囊形式提供的牙科汞合金粉末和牙科水银。本文件不适用于其他金属材料，其中合金粉末与在环境温度下呈液态的合金发生反应，以产生用于牙齿修复的固体金属材料。本文件适用于以以下形式提供给用户的用于制作牙科汞合金修复体的产品:牙科汞合金是一种细小的自由流动粉末，或者是一种被压缩成片剂的细小粉末，以及牙科汞袋（有时被称为牙科汞枕）中的牙科汞。这些牙套中的汞含量仅限于在一颗牙齿上进行中小型修复所需的量。本文件不适用于主要容器中供应的牙科汞，其质量不可分割，超过了适用于中小型修复的量。

This document specifies the requirements and test methods for dental amalgam alloy powder and dental mercury that are suitable for the preparation of dental amalgam together with the requirements and test methods for that dental amalgam and the requirements for packaging and marking.NOTE       Two of the requirements apply only to dental mercury (as supplied). All of the other requirements apply to the dental amalgam alloy (as supplied) and dental amalgam.This document is not applicable to dental amalgam alloy powder and dental mercury supplied in a pre-capsulated form.This document is not applicable to other metallic materials in which an alloy powder reacts with an alloy that is liquid at ambient temperature to produce a solid metallic material intended for dental restoration.This document applies to products used to make dental amalgam restorations, supplied to the user in the following forms: dental amalgam alloy as a fine free flowing powder, or as a fine powder compacted into tablets and dental mercury in dental mercury sachets (sometimes referred to as dental mercury pillows). The mass of dental mercury in these sachets is limited to the amount required to make a small to medium-sized restoration in a single tooth.This document is not applicable to dental mercury that is supplied in a primary container in an undivided mass that exceeds the amount suitable for a small to medium-sized restoration.

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