UL 2208
Standard for Solvent Distillation Units

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2010-07-08DOD Approved: --
Price Code:AANSI Approved: 2015-09-01
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover solvent distillation units, with a maximum capacity of 60 gallons (227 l), used for recycling flammable or combustible liquids as indicated in the instruction manual provided with each unit.

    1.2 These requirements cover solvent distillation units which utilize electricity, steam, or heated liquids to distill solvents.

    1.3 These units are intended for installation and use in accordance with the National Electrical Code, NFPA 70, the Flammable and Combustible Liquids Code, NFPA 30, the Standard for Spray Application Using Flammable or Combustible Materials, NFPA 33, the Uniform Fire Code, NFPA 1, and the International Fire Code, IFC.

    1.4 Solvent distillation units investigated for use in laboratories are only intended for installation in facilities that comply with requirements of the Standard for Fire Protection for Laboratories Using Chemicals, NFPA 45.

    1.5 Solvent distillation units investigated for use in commercial dry cleaning plants are intended for installation in accordance with requirements of the Standard for Drycleaning Plants, NFPA 32.

    1.6 Requirements additional to those specified in this standard are necessary as follows:

    a)    Electrically powered steam generating units having an electrical input power rating of more than 15 kW per steam generating vessel shall also comply with the applicable requirements in the Standard for Heating, Water Supply, and Power Boilers – Electric, UL 834;

    b)    Units intended for use in dry cleaning establishments shall also comply with applicable requirements of the Standard for Drycleaning Plants, NFPA 32;

    c)    Units intended for use in laboratory work areas shall also comply with applicable requirements of the following standards:

    1)    Standard for Medical Electrical Equipment, Part 1: General Requirements for Safety, UL 60601-1,

    2)    Standard for Electrical Equipment for Measurement, Control, and Laboratory Use; Part 1: General Requirements, UL 61010-1,

    3)     IEC Publication 1010-1,  Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use; Part 1: General Requirements,

    4)     Fire Protection for Laboratories Using Chemicals, NFPA 45, and

    5)     Health Care Facilities, NFPA 99;

    d)    Units intended for use in commercial garages shall comply with the applicable requirements of Article 511 of the National Electrical Code, NFPA 70, and of the Standard for Garage Equipment, UL 201;

    e)    Units intended for use in aircraft hangars shall comply with the applicable requirements of Article 513 of the National Electrical Code, NFPA 70; and

    f)    Units intended for use in dispensing and service stations shall comply with the applicable requirements of Article 514 of the National Electrical Code, NFPA 70.

    1.7 These requirements do not apply to:

    a)    Carbon-bed units;

    b)    Units intended to be installed outdoors;

    c)    Units used to distill solvents classified as unstable or solvents used for nitrocellulose or other unstable reactives;

    d)    Units intended for high volume distillation processes or equipment typical of the petrochemical or distilled spirits industries;

    e)    The storage, use, and disposal of any flammable or combustible liquids or hazardous materials used with or produced by the equipment; or

    f)    The physiological effects of using the equipment with solvents or hazardous waste.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 Undated references
          • 3 Glossary
        • CONSTRUCTION
          • 4 General
            • 4.1 All constructions
            • 4.2 Class I, Division 1 hazardous (classified) location construction
            • 4.3 Class I, Division 2 hazardous (classified) location construction
            • 4.4 Intrinsically safe circuits and components
          • 5 Frame and Enclosure
          • 6 Assembly
          • 7 Corrosion Protection
          • 8 Supply Connections
            • 8.1 Permanently-connected units
            • 8.2 Cord-connected units
          • 9 Current-Carrying Parts
          • 10 Internal Wiring
            • 10.1 General
            • 10.2 Protection of wiring
            • 10.3 Splices
            • 10.4 Separation of circuits
          • 11 Heating Elements
          • 12 Electrical Insulation
          • 13 Thermal Insulation
          • 14 Gaskets, Seals, and Tubing
          • 15 Motors
          • 16 Overcurrent Protection of Conductors and Heating Elements
          • 17 Motor-Running Overload Protection
          • 18 Motor and Power-Transformer Short-Circuit and Ground-Fault Protection
          • 19 General (Short-Circuit and Ground-Fault) Overcurrent Protection
          • 20 Thermal Cutoffs
          • 21 Lampholders
          • 22 Switches
          • 23 Auxiliary Controls
          • 24 Safety Controls and Interlock
          • 25 Spacings
            • 25.1 Line-voltage circuits
            • 25.2 Low-voltage circuits
            • 25.3 Alternative spacing measurements
          • 26 Grounding
          • 27 Bonding for Grounding
          • 28 Pressure Vessels and Parts Subject to Pressure
          • 29 Collection Vessels
          • 30 Protection Against Injury to Persons
        • PERFORMANCE
          • 31 General
          • 32 Power Input Test
          • 33 Leakage Current Test
          • 34 Normal Temperature Test
          • 35 Test of Insulation Resistance and Leakage Current as a Result of Moisture
          • 36 Dielectric Voltage-Withstand Test
          • 37 Vapor Concentration Measurement Test
          • 38 Operation Test
          • 39 Abnormal Operation Test
          • 40 Mechanical Endurance Test
          • 41 Testing of Component Switches and Control Devices
            • 41.1 Overload
            • 41.2 Thermostat Endurance
            • 41.3 Limited short circuit for motor-control devices
          • 42 Resistance to Impact Test
          • 43 Overfill Test
          • 44 Overflow Test
          • 45 Strain Relief
          • 46 Stability Test
        • MARKINGS AND INSTRUCTIONS
          • 47 Markings
          • 48 Instruction Manual
        • PRODUCTION LINE TESTS
          • 49 Dielectric Voltage-Withstand Test
          • 50 Polarization and Grounding Continuity Tests
    • APPENDIX A