标准号:BS M 56-1985
中文标准名称:航空航天用聚四氟乙烯管密度和相对密度的测定方法
英文标准名称:Methods for determination of density and relative density of polytetrafluoroethylene (PTFE) tubing for aerospace applications
标准类型:V13
发布日期:1985/2/28 12:00:00
实施日期:1985/2/28 12:00:00
中国标准分类号:V13
国际标准分类号:49.080
适用范围:Specifies three methods for the determination of the density and relative density of PTFE tubing used in the manufacture of medium and high pressure hose assemblies for aerospace applications: 1. Density gradient column method without a preconditioning heating and cooling cycle. 2. Water displacement method. 3. Density gradient column method with a preconditioning heating and cooling cycle.