Operator exposure

Batch equipment located indoors. A release of flammable/toxic material tends to disperse slower than if the release is outdoors. May lead to large concentration buildup and result in operator exposure. Confined flammable releases are also more likely to result in explosion with larger overpressures. 

Operating equipment is opened, cleaned, emptied, or charged frequently. Operator exposure to toxic or flammable materials during normal process operation. 

Pyrophoric material exposed to air when equipment is opened for clean-ing/maintenance. Possibility of fire and operator exposure. 

Lids and/or inspection ports opened while in operation leading to loss of containment, loss of inerting, operator exposure. 

Temporary connections offer a lot of flexibility to operations but also creates concerns about increased operator exposure, loss of containment, and the ability to add the incorrect material or charge to the incorrect vessel. 

Provide flange shields to prevent operator exposure... 

Operator exposure Charge liquids and solids materials by means of a to fumes or inerts. closed system (e.g., hard piping, hopper and rotary airlock, screw feeder, double-dump valve system, etc.) Provide local ventilation Use proper personnel protective equipment (PPE) ACGIH 1986 CCPS G-22 CCPS G-23 CCPS G-29... 

Operator exposure to hazardous materials or broken mill parts during feeding and packaging operations.. 

Operator exposure to toxic vapors during opening and cleaning. 

Improper disposal of filter media may result in operator exposure. 

Sampling needs vary with the batch being run. Use of same equipment/procedure may lead to operator exposure. Frequency of manual sampling is much higher than in continuous plants. 

Emission of toxic, flammable, corrosive, or hot material when equipment is opened for cleaning/mainte-nance. Possibility for operator exposure. 

Ensure tliat operator exposure is below tlie hygiene standard. (Note For envuonmental monitoring, beeause of its toxieity, a CO2 analyser must be used as distinet from simply relying on eheeks of oxygen levels.)... 

---