§ 154.149 DUST.
   (A)   Solid or liquid particles shall not be emitted at any point in concentrations exceeding three-tenths grain per cubic foot of the conveying gas or air.
   (B)   For measurement of the amount of particles in gases resulting from combustion, standard corrections shall be applied to a stack temperature of 500°F and 50% excess air.
(2001 Code, § 11.11) Penalty, see § 10.99