EOEC Standard Deviations       Effective 1-4-2006

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.17       0.19          888
FLUOROELASTOMER         Hardness         1.71       2.30          838
FLUOROELASTOMER         Tension          5.06       5.44          891
FLUOROELASTOMER         Elongation       8.44      10.59          878

NITRILE                 Volume           0.82       0.83          927
NITRILE                 Hardness         1.35       1.67          882
NITRILE                 Tension          7.62       7.91          915
NITRILE                 Elongation       7.31       7.51          917

POLYACRYLATE            Volume           0.79       0.82          910
POLYACRYLATE            Hardness         1.82       1.88          879
POLYACRYLATE            Tension          9.87       9.89          900
POLYACRYLATE            Elongation      11.30      11.46          899

SILICONE                Volume           2.18       2.31          901
SILICONE                Hardness         1.45       2.48          849
SILICONE                Tension          6.57       6.59          895
SILICONE                Elongation       9.74       9.81          904

VAMAC                   Volume           2.02       2.18          194
VAMAC                   Hardness         1.11       1.12          190
VAMAC                   Tension          9.70      11.22          190
VAMAC                   Elongation      11.23      11.64          191