Document 2Rw3B4v3GjX3GONdrQpko4M8r

* MEMORANDUM XSLLKI AM HlCtlUK TOt Peter L. de X* Crus MbFROM: Chuck Bradar DATBs February 5, 1986 REs Calculation of Potantial BPA in tha Diat from Vista's PVC Tha potantial amount of BPA in tha diat is calculated as follows using tha assumptions showns Assumptions Density of PVC Thickness of PVC Residual BPA Food volume/PVC surface area Amount of BPA migration Consumption factor for rigid and semi-rigid PVC 1.4g/cm3 (0.076 cm) 30 mils 185 ppm \ 10g/in2 5% 5.58 Amount of BPA/in2 of 30 mil PVC food contact surface; 1 in2 PVC, 30 mil thick * 6.45 cm2 x C.076 cm - 0.49 cm3 PVC 0.49 cm3 PVC x 1.4g PVC/cm3 0.686g PVC 0.686g PVC x 185 x 10~6g BPA/g PVC (PPM) - 127.6 x 10*6g BPA - 127.6 ppm BPA UEV-144524 T Patar L. da la Crus Pabruary 5, 1986 Pg Two If 5% of BPA alaratas to lOo food, tha concantratlon in food Is: 0,05 x 127.6 ppm 0.638 ppa EPA in food 10? food BPA in tha total diat aquals BPA concentration in food x PVC consumption factort 0.638 ppa x 0.055 0.035 ppm 35 ppb UEU-144525