Describes five additional test methods to cellular products of polymeric origin. Determination of shear strength and shear modulus, measurement of thermal conductivity (guarded hot plate method), measurement of water vapour transmission, determination of tensile strength, and determination of the volume percentage of closed cells. Includes conversion factors for water vapour permeability units, determination of corrected volume percentage of closed cells, and theoretical background to the apparatus calibration. Illustrates gripping arrangement, arrangement of specimen, holder for type 1 test specimen, type 2 test specimen, closed cell apparatus and calibration graph.

BS 4370-2(1993) : 1993

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