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现行 ISO 5940-1:2019
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Carbonaceous materials for the production of aluminium — Pitch for electrodes — Part 1: Determination of softening point by the ring-and-ball method 铝生产用碳素材料.电极用沥青.第1部分:用环球法测定软化点
发布日期: 2019-10-03
本文件规定了环球法,即使用环球仪测定铝生产中使用的沥青软化点(软化温度)的方法。 该方法适用于软化点等于或大于30°C的沥青。
This document specifies the ring-and-ball method, a method of using the ring-and-ball apparatus for the determination of the softening point (softening temperature) of pitch used in the production of aluminium. The method is applicable to pitches having softening points equal to or greater than 30 °C.
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归口单位: ISO/TC 226
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