Historical
ISO 4671:1999
Rubber and plastics hoses and hose assemblies - Methods of measurement of dimensions
This International Standard specifies methods of measuring the inside diameter, outside diameter (including diameter over reinforcement of hydraulic hoses), wall thickness, concentricity, and lining and cover thickness of hoses, methods of measurement and identification of the length of hoses and hose assemblies, and a method of verifying the through-bore of hydraulic hose assemblies.
International Organization for Standardization [iso]