ICS 75.100 CCS E 34 中华人民共和国石油化工行业标准 NB/SH/T 0699—2023 代替 SH/T 0699 —2000 冷冻机油与制冷剂相溶性试验法 Test method for miscibility of refri gerator oils with refrigerants 2023-02-06发布 2023-08-06实施 NB/SH/T 0699—2023 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 方法应用 ··················································································································· 1 6 试剂与材料 ················································································································ 2 7 仪器和设备 ················································································································ 2 7.1 仪 器 ···················································································································· 2 7.2 设 备 ···················································································································· 6 8 安全注意事项 ············································································································· 7 9 准备工作 ··················································································································· 7 9.1 试管的清洗 ··········································································································· 7 9.2 试验油的称取 ········································································································ 7 9.3 制冷剂的输入和称取 ······························································································· 7 10 试验步骤 ·················································································································· 8 10.1 冷冻机油与制冷剂相溶性的试管法测试 ····································································· 8 10.2 冷冻机油与制冷剂的高压及高温相溶性的测试 ···························································· 8 10.3 试验油与制冷剂混合物的两相分离温度测试 ······························································· 9 11 结果报告 ·················································································································· 9 12 精密度 ····················································································································· 9 12.1 概 述 ····················································································································· 9 12.2 重复性， r·············································································································· 9 12.3 再现性， R·············································································································· 9 NB/SH/T 0699—2023 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 0699 —2000《冷冻机油与制冷剂相溶性试验法》，本文件与 SH/T 0699 —2000相 比，除结构调整和编辑性改动外，主要技术变化如下： a） 增加了对冷冻机油和制冷剂加入量的描述（见第 4章， 2000版第 3章）； b） 修改了对制冷剂的要求（见 6.1.1～6.1.3，2000版5.1条）； c） 修改了试管法测试的安全阀工作压力（见第 7章， 2000版第 4章）； d） 删除了互溶性曲线测定及曲线绘制的图表内容（见 2000版第 7章及第 8章）； e） 修改了表 2中“典型制冷剂在不同设备中最高测定温度的推荐表”内容（见第 10章， 2000版 第7章）； f） 增加了耐高温高压试验舱的设备方案及测试内容（见第 7章）。 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燃料和润滑油分技术委员会 （SAC/TC280/SC1 ）归口。 本文件起草单位：中国石油天然气股份有限公司润滑油分公司、中国石化润滑油有限公司合成油脂 分公司。 本文件主要起草人：李雁秋、王鹏、张守杰、曾一兵、陈鹏真、刘弘瑜、蒙猛、张宜涛。 本文件及其所替代文件的历次发布情况为： — 2000年首次发布为 SH/T 0699 —2000； —本次为第一次修订。 NB/SH/T 0699—2023 1 冷冻机油与制冷剂相溶性试验法 警示：本文件的使用可能涉及某些有危险性的材料、操作和设备，但并未对与此有关的所有安全问 题都提出建议。因此，用户在使用本标准之前有责任制定相应的安全和防护措施，并确定相关规章限制 的适用性。 1 范围 本文件规定了冷冻机油与制冷剂相溶性的试验方法。 本文件适用于冷冻机油。 2 规范