EOEC Standard Deviations       Effective 7-6-2006

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.16       0.19         1137
FLUOROELASTOMER         Hardness         1.60       2.16         1084
FLUOROELASTOMER         Tension          4.97       5.37         1145
FLUOROELASTOMER         Elongation       8.31      10.40         1126

NITRILE                 Volume           0.74       0.76         1168
NITRILE                 Hardness         1.41       1.64         1116
NITRILE                 Tension          7.93       8.11         1157
NITRILE                 Elongation       7.17       7.31         1159

POLYACRYLATE            Volume           0.75       0.78         1180
POLYACRYLATE            Hardness         1.74       1.79         1132
POLYACRYLATE            Tension          9.63       9.66         1164
POLYACRYLATE            Elongation      11.03      11.31         1166

SILICONE                Volume           2.03       2.23         1169
SILICONE                Hardness         1.36       2.37         1098
SILICONE                Tension          6.52       6.56         1156
SILICONE                Elongation       9.72       9.90         1169

VAMAC                   Volume           1.99       2.24          408
VAMAC                   Hardness         1.13       1.15          390
VAMAC                   Tension          9.59      10.09          399
VAMAC                   Elongation      11.84      11.92          405