1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2208 Solvent Distillation UnitsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
2、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Solvent Distillation Units, UL 2208 Third Edition, Dated July 8, 2010 Summary of Topics These revisions to ANSI/UL 2208 are being issued to update ANSI approval of the standard. No changes in requirements are involved.
3、The revisions are substantially in accordance with Proposal(s) on this subject dated June 12, 2015. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduce
4、d, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied
5、warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, ev
6、en if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defe
7、nd, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements i
8、n this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective d
9、ate are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. SEPTEMBER 4, 2015 UL 2208 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 4, 2015 UL 2208 tr2 No Text on This PageUL COPYRIGHTED MATERIAL
10、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 8, 2010 (Title Page Reprinted: September 4, 2015) 1 UL 2208 Standard for Solvent Distillation Units First Edition September, 1996 Second Edition February, 2005 Third Edition July 8, 2010 This ANSI/UL Standard for
11、 Safety consists of the Third Edition including revisions through September 4, 2015. The most recent designation of ANSI/UL 2208 as a Reaffirmed American National Standard (ANS) occurred on September 1, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page
12、, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyright
13、ed by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 2208-2006 (R
14、2015)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS
15、INTRODUCTION 1 Scope .5 2 General 6 2.1 Components .6 2.2 Units of measurement .7 2.3 Undated references .7 3 Glossary .7 CONSTRUCTION 4 General 9 4.1 All constructions 9 4.2 Class I, Division 1 hazardous (classied) location construction 10 4.3 Class I, Division 2 hazardous (classied) location const
16、ruction 11 4.4 Intrinsically safe circuits and components .11 5 Frame and Enclosure 11 6 Assembly .18 7 Corrosion Protection .19 8 Supply Connections 19 8.1 Permanently-connected units .19 8.2 Cord-connected units 22 9 Current-Carrying Parts 23 10 Internal Wiring 24 10.1 General .24 10.2 Protection
17、of wiring .24 10.3 Splices 25 10.4 Separation of circuits .26 11 Heating Elements .27 12 Electrical Insulation .27 13 Thermal Insulation 28 14 Gaskets, Seals, and Tubing 28 15 Motors .29 16 Overcurrent Protection of Conductors and Heating Elements .29 17 Motor-Running Overload Protection .30 18 Moto
18、r and Power-Transformer Short-Circuit and Ground-Fault Protection 31 19 General (Short-Circuit and Ground-Fault) Overcurrent Protection .31 20 Thermal Cutoffs 31 21 Lampholders .31 22 Switches .32 23 Auxiliary Controls .33 24 Safety Controls and Interlock .33 25 Spacings 34 25.1 Line-voltage circuit
19、s 34 25.2 Low-voltage circuits .35 25.3 Alternative spacing measurements .36 26 Grounding .36 27 Bonding for Grounding 37 28 Pressure Vessels and Parts Subject to Pressure .38 29 Collection Vessels 40 JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH
20、ER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 30 Protection Against Injury to Persons 40 PERFORMANCE 31 General 40 32 Power Input Test .41 33 Leakage Current Test .41 34 Normal Temperature Test 45 35 Test of Insulation Resistance and Leakage Current as a Result of Moisture .50 36 Dielec
21、tric Voltage-Withstand Test .51 37 Vapor Concentration Measurement Test .51 38 Operation Test .52 39 Abnormal Operation Test 53 40 Mechanical Endurance Test 54 41 Testing of Component Switches and Control Devices .55 41.1 Overload 55 41.2 Thermostat Endurance 56 41.3 Limited short circuit for motor-
22、control devices 57 42 Resistance to Impact Test .57 43 Overll Test 59 44 Overow Test 59 45 Strain Relief 60 46 Stability Test .60 MARKINGS AND INSTRUCTIONS 47 Markings .61 48 Instruction Manual 63 PRODUCTION LINE TESTS 49 Dielectric Voltage-Withstand Test .64 50 Polarization and Grounding Continuity
23、 Tests .66 APPENDIX A Standards for ComponentsA1 JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover solvent distillation units, with a maximum
24、capacity of 60 gallons (227 l), used for recycling ammable 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 inten
25、ded 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 S
26、olvent 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
27、plants are intended for installation in accordance with requirements of the Standard for Drycleaning Plants, NFPA 32. 1.6 Requirements additional to those specied in this standard are necessary as follows: a) Electrically powered steam generating units having an electrical input power rating of more
28、 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 Drycle
29、aning 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
30、, 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 Car
31、e 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; JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 5UL COPYRIGHTED MATERIAL N
32、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 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 shal
33、l 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 classied as unstable or solvents used for nitrocellulose or ot
34、her 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 ammable or combustible liquids or hazardous materials used with or produced by the equipment; or f) The
35、 physiological effects of using the equipment with solvents or hazardous waste. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A list of standards covering components u
36、sed in the products covered by this standard. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this sta
37、ndard. 2.1.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as
38、certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Units of measurement 2.2.1 Values
39、 stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that c
40、ode or standard. 3 Glossary 3.1 For the purpose of this standard, the following denitions apply. 3.2 AUTOIGNITION TEMPERATURE The minimum temperature at which fuel-air mixtures will ignite spontaneously. This temperature is to be determined either at atmospheric pressure (14.7 psig) or at the maximu
41、m pressure present in the area of the fuel-air mixture, whichever is higher. At atmospheric pressure, the autoignition temperature of a solvent shall be determined in accordance with the Standard Test Method for Autoignition Temperature of Liquid Chemicals, ASTM E 659. 3.3 BATCH TYPE UNIT A unit tha
42、t distills a single batch of solvent at a time. Dirty solvent is poured or otherwise manually introduced into the unit from a container, safety can, or similar vessel. After processing, the distilled solvent is discharged into a collection vessel. The unit does not connect directly to solvent utiliz
43、ation equipment. 3.4 COMBUSTIBLE LIQUID A material that has a uidity greater than 300 penetration asphalt when tested in accordance with the Standard Test of Penetration for Bituminous Materials, ASTM D 5, and that has a closed cup ash point at or above 37.8C (100F). Combustible liquids are subdivid
44、ed as follows: a) Class II liquids include those having ash points at or above 37.8C and below 60C (140F). b) Class IIIA liquids include those having ash points at or above 60C and below 93C (200F). c) Class IIIB liquids include those having ash points at or above 93C. 3.5 FLAMMABLE LIQUID A materia
45、l that has a uidity greater than 300 penetration asphalt when tested in accordance with the Standard Test of Penetration for Bituminous Materials, ASTM D 5, and that has a closed cup ash point below 37.8C (100F) and a vapor pressure not exceeding 2068 mm Hg (40 psia). Flammable liquids are Class I l
46、iquids, and are subdivided as follows: a) Class IA liquids include those having ash points below 22.8C (73F) and having a boiling point below 37.8C. b) Class IB liquids include those having ash points below 22.8C and having a boiling point at or above 37.8C. c) Class IC liquids include those having
47、ash points at or above 22.8C and below 37.8C. JULY 8, 2010 SOLVENT DISTILLATION UNITS - UL 2208 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.6 FLASH POINT The minimum temperature at which a liquid gives off vapor in sufficient concentr
48、ation to form an ignitable mixture with air near the surface of the liquid within the vessel as specied by the appropriate test procedure and apparatus as follows: a) The ash point of a liquid having a viscosity less than 45 Saybold Universal Seconds (SUS) at 37.8C (100F) and a ash point below 93C (
49、200F) as determined in accordance with the Standard Test Method for Flash Points by Tag Closed Cup Tester, ANSI/ASTM D 56. b) The ash point of a liquid having a viscosity of 45 SUS or more at 37.8C or a ash point of 93C or higher as determined in accordance with the Standard Test Method for Flash Point by the Pensky-Martens Closed Cup Tester, ANSI/ASTM D 93 REV A. c) The Standard Test Method for Flash Point of Liquids by Small Scale Closed-Cup Apparatus, ASTM D 3278, m
