EOEC Standard Deviations       Effective 3-1-2008

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.16       0.18         1719     
FLUOROELASTOMER         Hardness         1.45       2.04         1665     
FLUOROELASTOMER         Tension          4.77       5.31         1723     
FLUOROELASTOMER         Elongation       7.75      10.22         1705     

NITRILE                 Volume           0.76       0.79         1748     
NITRILE                 Hardness         1.47       1.72         1696     
NITRILE                 Tension          8.96       9.30         1735     
NITRILE                 Elongation       6.99       7.07         1742     

POLYACRYLATE            Volume           0.76       0.79         1768     
POLYACRYLATE            Hardness         1.67       1.68         1718     
POLYACRYLATE            Tension         10.09      10.12         1733     
POLYACRYLATE            Elongation      11.20      11.28         1742     

SILICONE                Volume           1.84       2.06         1733     
SILICONE                Hardness         1.25       2.23         1661     
SILICONE                Tension          6.99       7.04         1711     
SILICONE                Elongation       9.87      10.02         1732     

VAMAC                   Volume           2.04       2.29          918     
VAMAC                   Hardness         1.17       1.17          898     
VAMAC                   Tension          8.74       9.10          900     
VAMAC                   Elongation      11.05      11.63          911