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PDFWAC 296-307-62610

Control employee exposures.

You must:
• Use feasible controls to protect employees from exposure to respiratory hazards by:
– Reducing employee exposure to a level that removes the respiratory hazard, such as to a level below the permissible exposure limit (PEL) in Table 3;
or
– Reducing the exposure to the lowest achievable level, when the respiratory hazard cannot be removed.
Note:
The following table gives you examples of control methods.
Table 1
Examples of Possible Controls
Control:
For example:
Using a different chemical (substitution)
• Choose a chemical with a lower evaporation rate or vapor pressure.
 
• Choose a chemical without hazardous ingredients.
Changing a process to lessen emissions
• Use hand rolling or paint dipping instead of paint spraying.
 
• Bolt items instead of welding them.
Separating employees from emissions areas and sources
• Use control rooms.
 
• Build an enclosure around process machinery or other emissions sources.
 
• Automate a process.
Removing emissions at or near the source (local exhaust ventilation)
• Install exhaust hoods or slots to capture emissions.
 
• Use an exhausted enclosure (like a blasting cabinet or laboratory hood).
Diluting and removing emissions in the work area (general exhaust ventilation)
• Allow natural air movement to create an adequate airflow through an area.
 
• Use mechanical fans.
Modify work practices
• Change the position of the worker relative to the work so fumes, vapors, or smoke do not go into their face.
Rotate employees
– Some specific rules prohibit the use of this control method
• Move employees to another job that is without exposure, on a schedule to keep their total exposure below the permissible exposure limit.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-01-166, § 296-307-62610, filed 12/21/04, effective 4/2/05.]
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