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::TTT?$�}#Y}�1 YMt�`�`T}Yfl�f :]J]50999h�0����J "YM}�f': ��h, f• ti:r•i:: .....% ' ,t� <br /> CONCENTRATIONS <br /> O Parts Per Million ( <br /> ppm ) <br /> */ Common unit of measure for classification . <br /> ✓ 1 % = 10, 000 ppm <br /> ✓ 1 ppm = 1 inch / 16 miles <br /> y` <br /> ppm = 1 minute / 2 years r` s <br /> , µ} 1 ppm — 1 ounce salt / 31 tons of potato chips <br /> r <br /> 5f <br /> v <br /> E <br /> zed, <br /> :y} f1 <br /> t "z <br /> ri <br /> .tiT, ,....'.C�•.uu3"i� ;,=}2F���r�}F:33�>3�l`#"A'S�7'�33' 3'n3f t:3�' f•+..r!};} .... ,•}i 323}"�3i3.......... ;� <br />