EOEC Standard Deviations       Effective 1-22-2007

                                       Within                    Total
                                          Lab    Overall      Individual
Elastomer               Parameter         STD      STD      Determinations

FLUOROELASTOMER         Volume           0.16       0.19         1341
FLUOROELASTOMER         Hardness         1.53       2.13         1287
FLUOROELASTOMER         Tension          4.91       5.37         1349
FLUOROELASTOMER         Elongation       8.15      10.15         1328

NITRILE                 Volume           0.71       0.73         1358
NITRILE                 Hardness         1.50       1.71         1306
NITRILE                 Tension          8.45       8.69         1346
NITRILE                 Elongation       6.99       7.12         1352

POLYACRYLATE            Volume           0.73       0.76         1384
POLYACRYLATE            Hardness         1.73       1.75         1334
POLYACRYLATE            Tension          9.84       9.89         1361
POLYACRYLATE            Elongation      11.31      11.44         1365

SILICONE                Volume           1.97       2.17         1361
SILICONE                Hardness         1.30       2.32         1289
SILICONE                Tension          6.65       6.69         1345
SILICONE                Elongation       9.81       9.99         1360

VAMAC                   Volume           1.97       2.33          612
VAMAC                   Hardness         1.19       1.20          592
VAMAC                   Tension          9.42       9.75          598
VAMAC                   Elongation      11.80      12.35          607