ABSTRACT
PHILIP A. SCHWEITZER, P.E. Consultant, Chester, New Jersey
INTRODUCTION
SPECIFICATIONS
maximum acetone and chloroform extracts, ash content, and many construction requirements.
It is preferable, however, to specify properties required, such as resilience, hysteresis, static or dynamic shear and compression modulus, flex fatigue and cracking, creep, electrical properties, stiffening, heat generation, compression set, resistance to oils and chemicals, permeability, and brittle point, in the temperature range prevailing in service and to leave the selection of the elastomers to a competent manufacturer.
