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Case Number 910275 Consultant: Richard DaRosa <br /> Appendix A Sample Date: 03/19/91 <br /> Page 8 of 14 <br /> Table 6 <br /> Bumper Polishing and Buffing <br /> Name/Title/Notes/Chemical Sample Time Sample Results PEL <br /> Art Holden, California Buffer <br /> - total 46st 264 minutes 69. 14 mg/m3 <br /> (plus mat-91 analysis) 103 minutes 77 . 52 mg/m3 <br /> time-weighted average 171.49 mg/m3 ** 10. 0 mg/m3 <br /> - lead 264 minutes 0. 015 mg/m3 <br /> 103 minutes 0. 023 mg/m3 <br /> time-weighted average 0. 017 mg/m3 0. 05 mg/m3 <br /> - nickel 264 minutes 0.295 mg/m3 <br /> 103 minutes 0. 370 mg/m3 <br /> time-weighted average 0. 316 mg/m3 1. 0 mg/m3 <br /> - chromium 264 minutes 0. 019 mg/m3 <br /> 103 minutes 0. 063 mg/m3 <br /> time-weighted average 0. 031 mg/m3 0. 5 mg/m3 <br /> - copper 264 minutes 0. 471 mg/m3 <br /> 103 minutes 0. 638 mg/m3 <br /> time-weighted average 0 . 518 mg/m3 ## 1. 0 mg/m3 <br /> Ron Breitmaver, California Polisher _ <br /> total. dust 261 minutes 72 . 80 mg/m31' <br /> (plus al analysis) 103 minutes 37 . 95 mg/m3 1 <br /> time-weighted average92 . 94 mg/m3 ** 10. 0 mg/m3 <br /> - lead 261 minutes 0. 005 mg/m3 <br /> 103 minutes 0. 017 mg/m3 <br /> time-weighted average 0. 008 mg/m3 0. 05 mg/m3 <br /> - nickel 261 minutes 0. 073 mg/m3 <br /> 103 minutes 0. 280 mg/m3 <br /> time-weighted average 0. 132 mg/m3 1. 0 mg/m3 <br /> - chromium 261 minutes 0. 013 mg/m3 <br /> 103 minutes 0. 020 mg/m3 <br /> time-weighted average 0. 015 mg/m3 0. 5 mg/m3 <br /> ^opper 261 minutes 0. 122 mg/m3 <br /> 103 minutes 0.433 mg/m3 <br /> time-weighted average 0. 210 mg/m3 1. 0 mg/m3 <br />