Table 4 (Continued). Checklist of controls for nanomaterial manufacturing and handling
| Industrial Exhaust Ventilation Deficiency Report Worksheet (Continued)
|
| Make-up air
|
System maintenance
|
| □ No replacement air
□ Insufficient air for dilution of fugitive emissions
□ Contaminated by exhaust air
□ Supply diffuser blows on hood face
□ Supply diffuser blocked
□ Temperature inadequate
□ Employee complaints (noise, draft)
□ Does not meet ASHRAE 62 provisions
□ Supply not balanced with exhaust
|
□ Inadequate maintenance (equipment broken)
□ Lack of ongoing PM program
|
| Worksite
|
Manifold exhaust systems
|
| □ Cluttered, housekeeping poor, dirty
□ Hood positioned near door, window, walkway, other turbulence
□ Fire escape routes blocked
□ Aisles blocked
|
□ Likelihood of fire/explosion; mixed chemicals
□ Corrosion in manifold
□ Condensation in manifold
□ One hood goes positive
□ Part of system under positive pressure
|
| Notes
|
|
|
SMACNA: Sheet Metal and Air Conditioning Contractors’ National Association
56 Current Strategies for Engineering Controls in Nanomaterial Production and Downstream Handling Processes
