ICS 75.140 CCS E 42 中华人民共和国石油化工行业标准 NB/SH/T 0639—2024 代替 SH/T 0639 —1996 石油蜡热安定性测定法 Test method for thermal oxidation stability of petroleum waxes 2024-12-25发布 2025-06-25实施 NB/SH/T 0639—2024 I 目 次 前言 ······························································································································I I 1 范围 ························································································································· 1 2 规范性引用文件 ·········································································································· 1 3 术语和定义 ················································································································ 1 4 方法概要 ··················································································································· 1 5 仪器设备 ··················································································································· 2 5.1 手动仪器 ··············································································································· 2 5.2 自动仪器 ·············································································································· 2 5.3 通用设备 ·············································································································· 2 6 试剂和材料 ················································································································ 2 7 取样 ························································································································· 2 8 准备工作 ··················································································································· 2 9 试验步骤 ··················································································································· 3 9.1 手动仪器 ·············································································································· 3 9.2 自动仪器 ·············································································································· 4 10 质量控制 ·················································································································· 4 11 结果报告 ·················································································································· 4 12 精密度 ····················································································································· 4 12.1 手动仪器 ············································································································ 4 12.2 自动仪器 ············································································································ 5 12.3 偏差 ·················································································································· 5 参考文献 ························································································································ 6 NB/SH/T 0639—2024 II 前 言 本文件按照 GB/T 1.1 —2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规定 起草。 本文件代替 SH/T 0639 —1996《石蜡热安定性测定法》 ，与 SH/T 0639 —1996相比，除结构调整和 编辑性改动外，主要技术变化如下： a） 将标准名称修改为“石油蜡热安定性测定法”； b） 增加了半精炼石蜡、包装蜡和白油等（见第 1章）； c） 增加了“术语和定义”、“取样”和“质量控制” 章（见第 3、7和10章）； d） 更改了试样量（见第 4章和 9.1.1，1996年版的第 3章和 7.1）； e） 增加了可控温电加热器（见 5.1.1）； f） 增加了试验条件参数的允许差值（见 5.1.4、9.1.2和9.1.4）； g） 增加了自动仪器的相关内容（见 5.2、9.2、第 11章和 12.2）； h） 更改了烧杯的容量和尺寸（见 5.3.1，1996年版的 5.2）； i） 增加了电子天平（见 5.3.4）； j） 增加了质量控制样品（见 6.2）； k） 增加了石蜡样品熔化要求（见 8.3）； l） 增加了“仲裁试验以手动仪器的热安定性结果为准”的规定（见第 11章）； m） 增加了偏差的内容（见 12.3）。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别这些专利的责任。 本文件由中国石油化工集团有限公司提出。 本文件由全国石油产品和润滑剂标准化技术委员会石油蜡类产品分技术委员会（ SAC/TC280/SC3 ） 归口。 本文件起草单位：中石化（大连）石油化工研究院有限公司、中国石油化工股份有限公司抚顺石油 化工研究院、中国石油天然气股份有限公司石油化工研究院、中国石化上海高桥石油化工有限公司、中 国石油天然气股份有限公司大连石化分公司、大连远东兴仪器有限公司、盘锦北方沥青燃料有限公司、 辽宁省重要技术创新与研发基地建设工程中心和辽宁石油化工大学。 本文件起草人：赵彬、耿晨晨、徐志扬、李淑杰、郭士刚、王凡凡、唐博、祝维倩、颜平兴、亢格 平、于锡闻、李奕睿、张文华、刘涛。 本文件及其所代替标准的历次版本发布情况为： — 1996年首次发布 SH/T 0639 —19