Wood preservation facilities, pentachlorophenol pressure: chapter E, table 12

PCP

• PCP blocks
• Petroleum oil

Objectives:

• To provide a mixing system with effective spill prevention features
• To provide a mixing system that minimizes worker contact with PCP

• Mixing by block placement in a closed tank is the preferred method.
• Use permanent, closed mixing systems (rigidly piped, tank to tank).

• Locate in a contained, dry sheltered area (giving attention to worker comfort).
• Provide protection against freezing (as applicable).

• Provide appropriate equipment for safe, controlled lifting and handling of PCP blocks.
• Provide a dry, concrete / paved area for plastic wrap removal from blocks.
• Ventilate to control air levels of PCP during routine operation and during worst event spills.
• Provide a vacuum cleaner system (filtered exhaust) for effective cleanup of PCP dust and granules from handling/transfer operations.
• Provide local exhaust system and closed solids handling systems (e.g. flexible covers on hoppers) to eliminate direct