EOEC Standard Deviations       Effective 7-16-2007

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.16       0.19         1521
FLUOROELASTOMER         Hardness         1.47       2.08         1467
FLUOROELASTOMER         Tension          4.78       5.23         1528
FLUOROELASTOMER         Elongation       7.91      10.06         1507

NITRILE                 Volume           0.70       0.73         1532
NITRILE                 Hardness         1.51       1.73         1480
NITRILE                 Tension          8.55       8.81         1520
NITRILE                 Elongation       6.94       7.04         1526

POLYACRYLATE            Volume           0.72       0.74         1540
POLYACRYLATE            Hardness         1.72       1.74         1490
POLYACRYLATE            Tension          9.75       9.79         1514
POLYACRYLATE            Elongation      11.23      11.35         1521

SILICONE                Volume           1.88       2.10         1535
SILICONE                Hardness         1.26       2.29         1463
SILICONE                Tension          6.93       6.97         1518
SILICONE                Elongation      10.02      10.19         1534

VAMAC                   Volume           1.94       2.27          738
VAMAC                   Hardness         1.18       1.18          718
VAMAC                   Tension          9.01       9.28          724
VAMAC                   Elongation      11.38      11.81          733