BSI - BS M 56
Methods for Determination of Density and Relative Density of Polytetrafluoroethylene (PTFE) Tubing for Aerospace Applications
|Publication Date:||28 February 1985|
|ICS Code (Aerospace fluid systems and components):||49.080|
|ICS Code (Hoses):||83.140.40|
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.