Determine the TLV for a uniform mixture of dusts containing the following particles:Nonasbestiform talc and Quartz with concentration 70,30 and TLV 20,2.7 respectively

By sudipraj on

given :

Type of dustConcentration(wt.%)TLV(mppcf)
Nonasbestiform talc7020
Quartz302.7

we will use the following formula :

$$TLV=\frac1{{\displaystyle\frac{C_1}{TLV_1}}+{\displaystyle\frac{C_2}{TLV_2}}}$$

$$TLV=\frac1{{\displaystyle\frac{0.70}{20}}+{\displaystyle\frac{0.30}{2.7}}}$$

=6.8