1. Introduction to Confined Spaces (Medium Risk)
1.1 General Objective and Scope
1.2 Criteria for Classifying Medium Risk
1.3 Types of Medium-Risk Confined Spaces
1.4 Common Tasks Involving Medium Risk
1.5 Operational Roles: Entrant, Watchperson, and Supervisor
2. Regulations, Responsibilities, and Preventive Documentation
2.1 Regulations Applicable to Confined Spaces (Spain and International Standards)
2.2 Responsibilities for Medium-Risk Work
2.3 Mandatory Preventive Documentation for Medium-Risk Work
2.4 Additional Documentation Requirements for Medium-Risk Work
3. Working Conditions and Personnel Requirements in Medium-Risk Confined Spaces
3.1 Minimum Working Conditions in Confined Spaces
3.2 Requirements for Personnel Involved in Medium-Risk Work
3.3 Additional Conditions for Specific Tasks
3.4 Criteria for Suspending Work
4. Hazards Present in Medium-Risk Confined Spaces
4.1 Atmospheric Hazards
4.2 Physical Hazards
4.3 Mechanical Hazards and Hazardous Energy
4.4 Ergonomic Hazards
4.5 Psychosocial Hazards
4.6 Hazards Arising from the Specific Activity
4.7 Organizational Hazards
4.8 Risk Assessment Criteria for Medium-Risk Levels
5. PPE and Access and Evacuation Equipment in Medium-Risk Confined Spaces
5.1 Personal Protective Equipment (PPE)
5.2 Access and Anchoring Equipment
5.3 Monitoring and Control Equipment
5.4 Ventilation Equipment
5.5 Rescue and Evacuation Equipment
5.6 Maintenance and Verification Requirements
5.7 Criteria for Selecting PPE and Equipment Based on Risk
6. Signage, Communications, and Entry Control in Medium-Risk Confined Spaces
6.1. Signage in Confined Spaces
6.2. Communications in Confined Spaces
6.3. Entry Control
6.4. Criteria for Shutdown Due to Failures in Signage, Communications, or Control
7. Atmospheric Monitoring in Medium-Risk Confined Spaces
7.1 Objectives of Atmospheric Monitoring
7.2 Critical Parameters to Be Measured
7.3 Types of Atmospheric Measurements
7.4 Requirements for Multigas Detectors
7.5 Atmosphere Acceptance Criteria
7.6 Actions to Take if the Atmosphere Is Hazardous
7.7 Atmospheric Changes During Work
7.8 Criteria for Halting Work Due to a Hazardous Atmosphere
7.9 Responsibilities for Atmosphere Control