Espacios Confinados

CAL OSHA

IS IT SAFE TO ENTER A CONFINED SPACE? CONFINED SPACE GUIDE

Reviewed/Updated 2012
California Department of Industrial Relations Cal/OSHA Consultation Service Education Unit

Publishing Information
The Confined Space Guide was developed by the Education and Training Unit, Cal/OSHA Consultation Service, California Department of Industrial Relations. The document waspublished by the California Department of Education, 721 Capitol Mall, Sacramento, California (mailing address: P.O. Box 944272, Sacramento, CA 94244-2720). It was distributed under the provisions of the Library Distribution Act and Government Code Section 11096. © 1998 by the California Department of Education All rights reserved

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TABLE OF CONTENTS
Acknowledgments................................................................................................................................ v Regulatory Requirements .................................................................................................................... 1 Introduction.......................................................................................................................................... 2 Fatal Facts ............................................................................................................................................. 4 Rescue .................................................................................................................................................... 5 Emergency........................................................................................................................................ 6 Self-Rescue, Non-Entry, and Entry Rescue ...................................................................................... 7 Rescue Training and Plan ................................................................................................................. 8 On-Site Rescue Team vs. Off-Site Rescue Team.............................................................................. 9 Rescue Equipment .......................................................................................................................... 11 Definitions and Basics ........................................................................................................................ 13 General Terminology...................................................................................................................... 14 Confined Space; Immediately Dangerous to Life or Health (IDLH); Permissible Exposure Limits (PEL); Entry Permit Evaluation ........................................................................................................................... 17 Permit-Required vs.Non-Permit Confined Space; Space Reclassification; Alternate Procedures; Permit-Required Confined Space Program (Hot Work and Host Employer-Contractor) Confined Space Hazards .................................................................................................................... 24 Atmospheric Hazards..................................................................................................................... 25 Oxygen Deficiency/Enrichment; Combustible/Flammable/Explosive Gases and Vapors; Combustible Dust; Toxics; Material Safety Data Sheets (MSDS); Monitoring-Air Sampling and Equipment Physical Hazards ............................................................................................................................. 33 Mechanical; Entrapment; Engulfment;Other Types of Hazards Hazard Controls ................................................................................................................................ 35 Controls for Atmospheric Hazards ................................................................................................. 36 Ventilation; Respiratory Protection; Other Control Measures Controls for Physical Hazards...