About Harboro Rubber Engineering in Rubber      Contents      Introduction      Uses of Rubber      Processing Rubber      Designing With Rubber      Selecting / Specifying Rubber      Quality In Rubber      Rubber Directory      Health & Safety      Measuring Properties          Measuring Properties          Measuring Hardness          Tensile Strength          Elongation          Modulus          Compression Set          Permanent Set (Tensile Set)          Density (Specific Gravity)          Resilience          Chemical Resistance          Fluid Resistance          Weather Resistance          Ozone Resistance          Electrical Properties          Tear Strength          Abrasion Resistance          Electric Strength          Flame Resistance          Low Temperature          Staining          Accelerated Ageing      Glossary of Terms      Request A Copy Contact Information

Fluid Resistance Property: Fluid Resistance Method of Measurement: Fluid resistance is commonly measured by the effect of the fluid on the volume of the rubber expressed as a volume change (e.g. +100% indicates that the volume of the rubber has doubled as a result of exposure to the fluid, -10% indicates the volume reduced as a result of exposure). Volume change is measured by determining the weight of a sample in air and water before and after exposure to the fluid under defined conditions. The sample is normally totally immersed in the fluid. Fluid resistance may also be defined in the same way as for chemical resistance (above) i.e. by change in properties of the rubber ASTM REFERENCE: D471 BS REFERENCE: BS903 Part A16 ISO REFERENCE: ISO1817** * technically equivalent ** identical