BS EN ISO 8031:2020 pdf free.Rubber and plastics hoses and hose assemblies——Determination of electrical resistance and conductivity. BS EN ISO 8031 To determine the resistance of conductive, antistatic and non-conductive hose1), the test should preferably be made with an instrument specifically designed for measuring insulation resistance, having a nominal open-circuit voltage of 500 V d.c., or with any other instrument...