Abrasive Blasting

Chapter 296-818, WAC

Effective Date: 09/01/06

Helpful Tools

WAC 296-818

Helpful Tool: Blast Cleaning Enclosures and Recommended Inward Air Velocities

For printing

For modifying

This helpful tool provides examples of blast cleaning enclosures and the recommended air velocities used for abrasive blasting operations.

Examples of
Blast Cleaning Enclosures
Recommended Air Velocities in
Feet Per Minute (fpm)
Abrasive blasting cabinets At least 500 fpm at the hand openings
Blast cleaning rooms At least 300 fpm with well baffled air inlets
Rotary blast cleaning tables 200-250 fpm at the access opening

Abrasive separators

Bucket elevators

Other accessory abrasive handling equipment, including blast cleaning drums and barrels

200-250 fpm at all openings



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