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Fiber Dimensions and Concentration Provided by TEM Labs <br /> L Fiber Length(pm) > 5 w " <br /> W Fiber Width(pm) > 0.25 <br /> w <br /> V=L x W x W Fiber Volume(pm3/Fiber) = 0.3125 <br /> C Concentration(Fibers/cm3Air) <br /> NIOSH Data <br /> s.g. Specific Gravity Asbestos = 3 Range of(2.5-3.0) <br /> Conversion Factors <br /> Pwater Density Water(kg/M3) <br /> = 998 <br /> Unit Conversion <br /> Concentration(pgASt)/m3Air) = 0.000936 <br /> /ug Ashl x 109 �Ug Xl m )3X(IOOCM <br /> Conc.of Fiber s = C x V X P.-al". x S.g. x 1 kg 1 x 106 atm /I <br /> M Air \ <br /> C ) <br /> 40 <br />