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Metalworking Fluids

Metalworking Fluids. Session Objectives. You will be able to: Recognize signs of unsafe fluid Identify metalworking fluid hazards Use engineering controls effectively Take all other necessary precautions to protect health and safety. What You Need to Know. Metalworking fluid hazards

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Metalworking Fluids

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  1. Metalworking Fluids

  2. Session Objectives • You will be able to: • Recognize signs of unsafe fluid • Identify metalworking fluid hazards • Use engineering controls effectively • Take all other necessary precautions to protect health and safety

  3. What You Need to Know • Metalworking fluid hazards • Exposure control measures • Safe use procedures • Required PPE • Personal hygiene • Fungi control • Fluid change

  4. Types of Metalworking Fluids • Straight oil • Soluble oil

  5. Types of Metalworking Fluids (cont.) • Semisynthetic • Synthetic

  6. Signs of Unsafe Fluid • Low sump level • Abnormal fluid appearance • Foul smell

  7. Signs of Unsafe Fluid (cont.) • Floating matter • Tramp oil • Excessive foam • Dirty machines or trenches

  8. Signs of Unsafe Fluid (cont.) • Skin irritation • Respiratory irritation • Other fluid-related problems

  9. Labels and MSDSs • Identity of chemical and manufacturer • Hazard warnings • Physical characteristics • Health effects • Safe handling procedures • Emergency response

  10. Health Effects—Skin • Contact dermatitis • Irritant dermatitis • Allergic dermatitis

  11. Health Effects—Skin (cont.) • Causes of dermatitis • Acne-like disorders

  12. Health Effects— Respiratory • Irritation of lungs, throat, and nose • Symptoms • Asthma

  13. Health Effects— Respiratory (cont.) • Chronic bronchitis • Hypersensitivity pneumonitis • Other factors

  14. Control Misting • Use low-pressure flow • Use mist suppressants • Interrupt or reduce flow when practical • Fix leaks • Avoid compressed air to dry parts

  15. Isolation • Mechanical parts handling • Machine enclosures • Splash guarding • Isolation booths

  16. Exhaust Ventilation • Local exhaust ventilation • Enclosure exhaust hood • Exterior exhaust hood • General ventilation

  17. Exhaust Hoods • Close capture enclosure • Total or complete enclosure • Tunnel enclosure • Push-pull ventilation Image Credit: Laboratory Design and Supply

  18. Exhaust Hoods (cont.) • Side-draft hood • Canopy hood • Downdraft hood

  19. Inspection and Maintenance • Fluid filtration systems • Fluid delivery systems • Ventilation systems

  20. Inspection and Maintenance (cont.) • Fluid chemistry • Enclosures and splash guards

  21. Health Effects and Control Measures • Do you understand the information presented in the previous slides?

  22. Fluid Management Program • Responsibility for fluid systems • Responsibility for adding materials • Fluid testing procedures • Tracking data • Employee participation • Training program

  23. Safe Use Procedures • Minimize exposure to fluids • Recognize unsafe fluids • Know how to add fluid to a machine • Recognize ventilation problems • Know how to get something fixed

  24. Controlling Fungi Growth • Clean system before adding new fluid • Fungi grows more rapidly in some situations • Maintain fluid at proper concentration • Make sure water used for mixtures is pure

  25. Controlling Fungi Growth (cont.) • Add biocides • Remove metal chips and fines

  26. Controlling Fungi Growth (cont.) • Remove tramp oil • Practice good housekeeping

  27. Fluid Change • Add cleaner with biocide • Remove old fluid, chips, and swarf • Circulate cleaning solution • Change filters • Refill with fresh fluid

  28. Housekeeping • Clean floors, equipment, and work area • Wear protective clothing when cleaning and use proper cleaning equipment • Clean up spills immediately • Dispose of waste and contaminated items properly

  29. Personal Hygiene • Minimize contact • Clean skin with soap and water • Wear clean work clothes for each shift • Change contaminated work clothes • Keep food, beverages, and tobacco out of work areas • Use barrier and moisturizing lotions

  30. PPE • Hazard assessment • Chemical-resistant gloves • Protective clothing

  31. PPE (cont.) • Eye and face protection • Goggles • Face shields • Safety glasses with side shields • Foot protection

  32. Respirators • Engineering and administrative controls • PEL = 5 mg/m3 for mineral oil mist • N-, R-, or P-series filtering facepiece

  33. Safe Work Practices • Do you understand the information presented in the previous slides?

  34. Exposure Assessment • Qualitative assessment • Personal air sampling • Area air sampling • Source air sampling

  35. Medical Monitoring • Early diagnosis is important • Program includes health review and medical exam • Periodic health evaluations • Symptoms to monitor • Report possible symptoms right away

  36. Key Points to Remember • Know the signs of unsafe metalworking fluids • Report symptoms of skin or respiratory problems • Follow safe work practices • Practice good hygiene and safe housekeeping • Wear required PPE • Monitor and control fungal growth

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