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BS M 56:1985

M00000329

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BS M 56:1985 Methods for determination of density and relative density of polytetrafluoroethylene (PTFE) tubing for aerospace applications

standard by BSI Group, 02/28/1985

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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.