WAC 296-818-20005   Dust hazards.  

     IMPORTANT:

     • Abrasives and the surface coatings on materials blasted are shattered and pulverized during blasting operations. The dust formed will contain particles that could result in the following hazards:

     – Respiratory

     – Fire

     – Explosion

     • Wet blasting methods minimize dust exposure, but dispersed droplets, mists, and dried residues may become airborne and create potential exposures.

     You must:

     • Evaluate the potential health hazards from abrasive blasting operations by considering the composition and toxicity of the abrasive material and the surface being abraded.

References:	• For additional hazard assessment requirements, go to these separate chapters:
	– Respirators, chapter 296-842 WAC
	– The Safety and health core rules, chapter 296-800 WAC
	– Personal protective equipment, WAC 296-800-16005.
	• For requirements on the use of Combustible organic abrasive, go to WAC 296-818-30005.

     You must:

     • Keep dust concentrations below the permissible exposure limits found in a separate chapter, Respiratory hazards, chapter 296-841 WAC.

Note:	When sampling for dust concentrations, place the sample collection device:
	– In the breathing zone of the operator;
	AND
	– Outside the respiratory protection worn.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-12-074, § 296-818-20005, filed 6/6/06, effective 9/1/06.]