Current Test-by-Test Standard Deviations

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

SILICONE                Volume           3.81       4.19         11507    
SILICONE                Hardness         3.00       3.09         11435    
SILICONE                Tension          9.88      10.47         11474    
SILICONE                Elongation       8.77       9.09         11495