If you have | Then make sure |
Air inlets and access openings | They are either baffled or arranged so the combination of inward airflow and baffles minimizes both of the following: |
| - The escape of abrasive or dust particles into adjacent work areas. |
| - Visible spurts of dust |
Small access openings where dust might escape | Slit resistant baffles are installed in multiple sets at all small access openings, and do both of the following: |
| - Regularly inspect them |
| - Replace them when needed |
An observation window in enclosures where hard, deep cutting abrasives are used | The window is made of safety glass protected by screening |
Notes: |
• Hard, deep cutting abrasives may shatter normal glass. |
| • If the safety glass shatters, the protective screening will help contain the glass and protect employees from cuts and lacerations. |
Small operator access doors | They are flanged and tight when closed, and open from both inside and outside the enclosure. |
| Note: |
| If you have a small operator access door and a large work access door, the large work access door may open or close from the outside only. |
References: | For more information on: |
| 1. Air velocities, refer to the following: |
| a. The latest edition of Recommended Industrial Ventilation Guidelines (ACGIH); |
| b. NIOSH 1976 Industrial Ventilation; |
| 2. Exit routes, go to the Safety and health core rules, WAC 296-800-310. |
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 17-18-075, § 296-818-30010, filed 9/5/17, effective 10/6/17; WSR 06-12-074, § 296-818-30010, filed 6/6/06, effective 9/1/06.]