Please note: All interim revisions for this edition available at time of your purchase will be included.

Solvent Distillation Units

UL 2208

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.