EOEC Standard Deviations       Effective 4-1-2006

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.17       0.19          953
FLUOROELASTOMER         Hardness         1.68       2.25          898
FLUOROELASTOMER         Tension          4.92       5.32          955
FLUOROELASTOMER         Elongation       8.32      10.65          939

NITRILE                 Volume           0.80       0.81          985
NITRILE                 Hardness         1.36       1.67          941
NITRILE                 Tension          7.58       7.89          972
NITRILE                 Elongation       7.24       7.40          975

POLYACRYLATE            Volume           0.77       0.81          976
POLYACRYLATE            Hardness         1.80       1.85          939
POLYACRYLATE            Tension          9.70       9.74          966
POLYACRYLATE            Elongation      11.30      11.53          965

SILICONE                Volume           2.16       2.33          961
SILICONE                Hardness         1.43       2.46          900
SILICONE                Tension          6.47       6.47          952
SILICONE                Elongation       9.69       9.80          964

VAMAC                   Volume           2.04       2.22          246
VAMAC                   Hardness         1.20       1.21          241
VAMAC                   Tension          9.33      10.82          244
VAMAC                   Elongation      10.81      11.07          244