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石墨细度试验方法 Test method for fineness of graphite ICS 73.080 CCS Q 51 中华人民共和国国家标准 GB/T 3520—2024 代替 GB/T 3520—2008 2024-10-2 6发布 2025-05-0 1实施 国家市场监督管理总局 国家标准化管理委员会 发 布 目 次 前言 ····································································································· Ⅲ 1 范围 ·································································································· 1 2 规范性引用文件 ······················································································ 1 3 术语和定义 ··························································································· 1 4 试样的采取和制备 ···················································································· 1 4.1 试样的采取 ······················································································ 1 4.2 试样的制备 ······················································································ 2 5 试验方法 ······························································································ 2 5.1 负压筛析法(测定范围:不小于38 μm) ························································· 2 5.2 振筛机法(测定范围:不小于38 μm ) ··························································· 3 5.3 激光衍射法(测定范围:不大于38 μm) ······················································· 4 GB/T 3520—2024 Ⅰ
GB-T 3520-2024 石墨细度试验方法
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