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Rubber and plastics hoses and tubing, and their assemblies. Determination of permeability to gas
This document specifies three methods to determine the permeability to gas by measuring the volume of gas diffusing through a rubber or plastics hose or length of tubing used for gas applications in a specified time.
Method 1 is for determining the permeability of the complete hose wall or length of tubing wall, excluding end fittings, to the test gas.
Method 2 is for determining the permeability at the hose and fitting interface to the test gas.
Method 3 is for precisely determining the permeability of the complete hose or length of tubing, including end fittings.
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