Technical Committee on Environmental Products
Technical Committee on Biomedical Laboratory
Technology
Subcommittee on C22.2 No.151
Preface
Foreword
1 Scope
2 Definitions
    2.1 General
3 General Requirements
    3.1 General
    3.2 Reference Publications
4 Construction
    4.1 General
          4.1.1 Electrical Components
          4.1.2 Unassembled Equipment
          4.1.3 Use of Flammable Liquids
    4.2 Enclosures
          4.2.1 General
          4.2.2 Enclosure Strength
          4.2.3 Enclosure Durability
          4.2.4 Protection from Electric Shock
          4.2.5 Resistance to Burning
          4.2.6 Confinement of Fire Hazard
          4.2.7 Source of Fire Hazard
          4.2.8 Reduction of Fire Hazard to a Safe Level
    4.3 Mechanical Assembly
          4.3.1 General
          4.3.2 Parts Subjected to Fluid Pressure
          4.3.3 Stability
    4.4 Means for Limiting Hazards
          4.4.1 Interlocks
          4.4.2 Capacitor Discharge
          4.4.3 Protection Against Ionizing Radiation
    4.5 Supply Connections
          4.5.1 General
          4.5.2 Cord Connected Equipment
          4.5.3 Strain Relief
          4.5.4 Terminal Parts and Leads
          4.5.5 Equipment for Permanent Connection
    4.6 Interconnecting Cables and Cords
    4.7 Internal Wiring
          4.7.1 General
          4.7.2 Protection
          4.7.3 Insulation
          4.7.4 Printed Wiring Boards
    4.8 Motors
    4.9 Transformers
    4.10 Switches and Controls
    4.11 Overcurrent and Overload Protection
          4.11.1 General
          4.11.2 Interconnecting Cords and Cables
                  Overcurrent Protection
          4.11.3 Limitation of Secondary Power Input
          4.11.4 Motor Protection
    4.12 Spacings
    4.13 Separation of Circuits
    4.14 Thermal Insulation
    4.15 Heating and Heater Elements
    4.16 Grounding
5 Marking
    5.1 General
    5.2 Cord Connected Equipment
    5.3 Equipment for Permanent Connection
    5.4 Double Insulated Equipment
6 Tests
    6.1 General
    6.2 Conditions for Test
          6.2.1 Voltage
          6.2.2 Frequency
          6.2.3 Ambient Temperature
          6.2.4 Load
          6.2.5 Test Location
    6.3 Rating (Input)
    6.4 Leakage Current
    6.5 Temperature (Normal Load)
    6.6 Dielectric Strength
    6.7 Abnormal
          6.7.1 General
          6.7.2 Compliance
          6.7.3 Procedure
          6.7.4 Equipment Utilizing Flammable Liquid
          6.7.5 Heating Equipment
          6.7.6 Fusible Links
          6.7.7 Immersion Heaters
          6.7.8 Transformer of Double Insulated Equipment
    6.8 Impact Tests for Enclosures and Equipment
          6.8.1 Cathode Ray Tube Enclosures
          6.8.2 Enclosures for Other than Cathode Ray Tubes
          6.8.3 Bench Handling Impact
    6.9 Drop
          6.9.1 General
          6.9.2 Procedure
          6.9.3 Compliance
    6.10 Deflection
    6.11 Overload Test of Switches and Controls
    6.12 Extreme Temperature
    6.13 Flaming Oil Test for Perforated Panels
    6.14 Implosion Test for Cathode Ray Tubes
          6.14.1 General
          6.14.2 Thermite
          6.14.3 Liquid Nitrogen
    6.15 Bond Strength of Printed Wiring Boards
          6.15.1 General
          6.15.2 Procedure
    6.16 Molten PVC and Copper
    6.17 Pressure
    6.18 Stability and Transportability
    6.19 Strain Relief
7 Requirements for Specific Equipment Types
    7.1 General
    7.2 Centrifuges
8 Double Insulated Equipment
    8.1 General
    8.2 Mechanical Assembly
    8.3 Supply Connections
    8.4 Electrical Insulation
    8.5 Transformers
    8.6 Spacings
Tables
Figures
Appendices
A Mechanical Hazards
B Flammability of Enclosures