标准编号:	SH/T 0308-1992
中文名称:	润滑油空气释放值测定法
英文名称:	Determination Method for Air Release Value of Lubricating oils
中标分类:	E34    润滑油
行业分类:	SH    石油化工行业标准
发布机构:	中国石油化工集团公司
发布日期:	1992-5-20
实施日期:	1992-5-20
标准状态:	valid
替代旧标准:	SY 2693-1985
翻译语言:	英文
文件格式:	PDF

1 Subject Content and Application Scope This standard specifies the determination method for entrainment air separating ability of lubricating oils. This standard is applicable to petroleum products such as steam turbine oils and hydraulic oils. 2 Definitions Air release value: under condition specified in this standard, the time required for the volume of the entrainment air in test sample to be reduced to 0.2%, this time is bubble separating time and is indicated by minute (min). 3 Method Summary Heat the test sample up to 25, 50 or 75℃; vigorous agitation may be produced by blowing excess compressed air in the test sample, the air will form minimum bubbles in the test sample i.e. the entrainment air. Stop blowing and record the time for the volume of the entrainment air in test sample to be reduced to 0.2%. 4 Apparatus and Materials 4.1 Apparatus The apparatus consists of the following several parts as shown in Figure 1.