JT/T 494-2003 汽油机进气阀沉积物模拟试验方法

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畜绪号署

中华�民共和国交通行�标准

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汽油机进气阀沉积物模拟试验方法

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中华人民共和国交通部发布

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目次

前言·����������������������····，，，，，，，二‘·��·，，····，，，··�·‘······、··，。·，·····，，，········。······一�

引言···‘···，··，，·················，·，，······。·····························································⋯⋯皿

�范围···········，···········。········，····················································，················一�

�规范性引用文件·，·················，·······���������������������������������················，·⋯⋯““，⋯�

�方法概要···，，·，············�············，············�····⋯⋯，·······⋯⋯，⋯⋯‘�⋯，�

�试验环境条件·········，·，，································。。···············，··············，·············一�

�仪器设备和试剂··，···········，······，····“·············，···················，···，·······················⋯⋯�

�准备工作······························，···································，···················�·········⋯⋯�

�试验步骤·，·······················，，，，·，·············，·，····················，·······，····················⋯⋯�

�试验结果··········，·················，·························。············，··········⋯⋯，二，，。······⋯⋯�

�精密度·············，··················，·········，········。···············································⋯⋯�

��报告·······‘·‘···，·····························，········“·······，⋯，，����············���������······⋯⋯�

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本标准由交通部公路科学研究所提出并归口

本标准起草单位�交通部公路科学研究所，兰州维科石化仪器有限公司

本标准主要起草人�郭亦明、张德民、李荣、刘宗茂、纪文萍

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引言

��为了各地的汽油清净剂生产企业、产品质量市场监管部门都能检验汽油清净剂的清净性�为了

�������《车用无铅汽油》和‘�����域车用汽油有害物质控制标准》两个标准中“有效清净剂的规定”

得以