标准摘要
[中文适用范围]： 本文件规定了与腐蚀型脱锌有关的评估标准，并为选择暴露于淡水、盐水或饮用水的锌质量分数大于15%的铜合金提供了指导。 评估标准基于暴露测试。 材料可以是半成品的形式，也可以是最终产品（配件、阀门等）的形式。 本文件不适用于流量计或泵部件等复杂产品。 此外，对于预期应用，可能需要考虑材料的其他特性。 本文件并非旨在验证应用失败时的脱锌效果。 [外文原描述]： ISO 6509-2:2017 specifies assessment criteria and provides guidance related to the corrosion type dezincification for the selection of copper alloys with a mass fraction of zinc of more than 15 %, exposed to fresh, saline waters or drinking water. The assessment criteria are based on the exposure tests in ISO 6509‑1. The materials can be in the form of a semi-finished product or in the form of a final product (fittings, valves, etc.). ISO 6509-2:2017 is not applicable to complex products like flow-meters or pump-parts. In addition, other properties of the material might need to be taken into account for the intended application. This document is not intended to validate dezincification in case of failure in the application.
英文名称Corrosion of metals and alloys — Determination of dezincification resistance of copper alloys with zinc — Part 2: Assessment criteria