SY-T7551-2004-原油倾点测定法.pdf

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1、ICS75.040E21各容昙，14093-2004SY中华人民共和国石油天然气行业标准SY/T7551-2004原油倾点测定法Standardtestmethodforpourpointofcrudeoils(ASTMD5853-95。MOD)2004一07一03发布2004-11-01实施国家发展和改革委员会发布SY/T7551-2004目次前言·········‘·············································，··································，······················⋯⋯n1范围····

2、·································，。···········································。。·········，················⋯⋯12规范性引用文件·······················································································⋯⋯，⋯⋯13术语和定义········...........................................................................

3、........................14方法概述···········。································，··································。·························⋯⋯15装置··············································································································⋯⋯16样品准备······················“····，，·，，····，，，·

4、·······，·····················，·，·，，···········‘·‘······，，··一37测试步骤·········································································································⋯⋯38计算和报告··················，······················，························........................................59重复性。·······

5、···，·，·········，···‘··················，。··········，··。·······，··························‘········，·⋯⋯5附录A(资料性附录)样品的处置···········································································⋯⋯6SY/T7551-2004前言本标准修改采用ASTMD5853-95《原油倾点标准试验方法》(2000年重新确认，英文版)。本标准根据ASTMD5853-95重新起草，按‘B/T1.1-2000《标准化工作导

6、则第1部分:标准的结构和编写规则》规定编制。本标准在重新起草中对原标准进行了如下修改，并在相应条款旁用垂直单线标识。—由于ASTMD5853-95中的引用标准ASTMD97《石油产品倾点的测试方法》、ASTMD130《利用铜片测试法确定石油产品对铜腐蚀的检测方法》、ASTMD323《石油产品蒸汽压测定方法》，在标准条文中并未有实际应用仅作为参考，本标准予以删除。—根据GB/T20000.2《标准化工作指南第2部分:采用国际标准的规则》规定，本标准以GB/T514《石油产品试验用液体温度计技术条件》以及GB/T4756《石油液体手工取样法》，代替ASTMD5853-95中引用的ASTME1(A

7、STM温度计规范》和ASTME77《温度计检验与确认的实验方法》、ASTMD4075《石油和石油产品手动取样法》和ASTMD4177《石油和石油产品自动取样法》。—ASTMD5853-95对再现性的规定过分粗略，也注明其精密度试验但并不充分。考虑到在我国的实际情况和已有经验，本标准删除了ASTMD5853-95的“再现性”，仅规定了重复性。本标准的附录A为资料性附录。本标准由油气计量及分析方法专业标准化技术委