Table 4 (Continued). Checklist of controls for nanomaterial manufacturing and handling
| Industrial Exhaust Ventilation Deficiency Report Worksheet
|
| □ Building: |
□ Room: |
□ Hood number:
|
| □ Date: |
□ Investigator/reporter: |
□ Fan number:
|
|
| Notes and sketch
|
| Management
|
Ductwork
|
□ No local cognizant person
□ Lack of records
□ Lack of up-to-date plans and specifications
□ Lack of emergency plan
□ Insufficient employee training
□ No hood testing mechanism
□ No hood-use approval mechanism
|
□ Holes, air leaking
□ Dents
□ Poor construction
□ Plugged
□ Corroded
□ Leaking
□ Dampers improperly set
□ Fire dampers
□ Doesn’t meet SMACNA qualifications
|
| Hood |
Fan/Motor
|
□ Improper type for operation/chemicals used
□ Air leaking from hood (smoke noncontainment)
□ Surfaces corroded
□ Surfaces dirty
□ Hood mechanisms inoperable
□ Lack of real-time airflow monitor
□ Flammable construction materials
□ Slots not open to appropriate size
□ Slots blocked by equipment, chemicals
|
□ Worn out or corroded
□ Insufficient rpm
□ Belts slipping or broken
□ Motor burned out
□ Undersized fan
|
| Hood operations |
Stack
|
| □ Use of hood when hood exhaust off
□ Hood not being used
□ Inappropriate materials/equipment in hood
□ Noisy
|
□ Not attached
□ Inappropriate location
□ Inadequate height
□ Stack exit velocity insufficient
□ Aesthetic enclosure hinders dispersion
|
| Work practices |
Exhaust hood
|
□ Untrained personnel
□ Rapid movements at hood face
□ Placing upper body in hood
□ Operating outside hood
|
□ Inadequate exhaust volume
□ Inadequate face velocity
□ Inadequate face velocity range
□ Turbulence in hood face
|
|
(Continued)
Current Strategies for Engineering Controls in Nanomaterial Production and Downstream Handling Processes
