Page:Current Strategies for Engineering Controls in Nanomaterial Production and Downstream Handling Processes.pdf/68

Table 4. Checklist of controls for nanomaterial manufacturing and handling

Item	Category	Data
Process/task	Category (select all applicable) □ Weighing □ Mixing □ Transferring □ Drying □ Cleaning □ Cutting/sanding □ Harvesting □ Unpacking ENMs □ Maintenance/repair □ Finishing (drilling, sawing, grinding) □ Packaging/shipping □Others: ________________________ Background	Workspace Duration (min) Frequency (times per day) Number of workers involved PPE type Concentration Size distribution: ___________________ Number: __________________________ Mass: _____________________________
Nanomaterial	□ SWCNT □ MWCNT □ Other carbon-based □ Metals □ Oxides □ Quantum dots □ Composite: ____________________ □ Others: ________________________	Processing rate/volume Primary particle size Concentration at source Number: __________________________ Mass: _____________________________ Concentration at worker breathing zone or area (designate) Number: __________________________ Mass: _____________________________ Breathing zone: ____________________ Area: _____________________________

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Current Strategies for Engineering Controls in Nanomaterial Production and Downstream Handling Processes

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