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29 CFR 1910.1450 Laboratory Safety Standard

29 CFR 1910.1450 Laboratory Safety Standard. Chemical Hoods Conventional Bypass Auxiliary Air Bypass Re-circulating/Ductless. Non-Chemical Hoods BioSafety Cabinets Laminar Flow Hoods. Chemical Hood Types. Unstable Set- Up Flammable and Toxic Atmospheres. Unsafe Experiment.

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29 CFR 1910.1450 Laboratory Safety Standard

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  1. 29 CFR 1910.1450 Laboratory Safety Standard

  2. Chemical Hoods • Conventional • Bypass • Auxiliary Air Bypass • Re-circulating/Ductless • Non-Chemical Hoods • BioSafety Cabinets • Laminar Flow Hoods

  3. Chemical Hood Types

  4. Unstable Set- Up Flammable and Toxic Atmospheres

  5. Unsafe Experiment

  6. Chemical Contamination

  7. Proper Set Up: Brightly Illuminated Clean Apparatus 6” Inside Slots Unobstructed

  8. Unsafe Lab Practice

  9. Unsafe Lab Practice

  10. Safe Lab Practice

  11. Improper Chemical Storage Restricted Airflow Chemical Escape Incompatible Chemicals Chemical Contamination

  12. Proper Chemical Storage Hazard Class Secured Labeled Dry

  13. Proper Material Storage Side or Rear 6” Beyond Sash Maximum 25% Slot Blockage

  14. Improper Equipment Storage Sash Restricted Slot Opening Blocked Airflow Restricted Limited Protection

  15. Proper Equipment Storage Elevate Apparatus Promote Airflow Contain Contaminants

  16. Improper Waste Disposal Unsafe Illegal

  17. Closed Sash Position One-Third Opening Chemical Exposure Explosion Protection Fire Containment

  18. Open Sash Position Set Up Tear Down Hazard Absent

  19. Damaged Sash Limited Protection Report Damage Repair Before Using

  20. Raised Sash (Unattended) Reduced Air Velocity Fire/Explosion Chemical Exposure

  21. Lowered Sash (Unattended) Increased Air Velocity Contain Fire/Explosion Limit Exposure

  22. Open Lab Door Unrestricted Traffic Air Turbulence Room Depressurized Chemical Exposure Fire and Explosion

  23. Closed Lab Door Control Foot Traffic Limit Turbulence Room Pressurized Limit Chemical Exposure Contain Fire and Explosion Provide Security

  24. Hood Performance Ventilation Measurements Various Test Methods Face Velocity Measurements Sash Height Hood Contents

  25. Hood Performance Ventilation Smoke Flow Patterns Laminar Flow Turbulence Eddy Currents Back Drafts

  26. Hood Performance Certification Approval Caution Information

  27. Hood Performance Danger Notice Do Not Use

  28. Hood Performance Tissue Paper Ribbon

  29. Hood Performance Flow Indicator Static Pressure Acceptable Range Alarm Mechanism Test Alarms

  30. Hood Performance Flow Indicator Air Velocity Acceptable Range Alarm Mechanism Test Alarms

  31. Ventilation System Duct Work Fan Exhaust Stack

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