1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1694 Tests for Flammability of Small Polymeric Component MaterialsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MAT
2、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Tests for Flammability of Small Polymeric Component Materials, UL 1694 Third Edition, Dated February 18, 2002 SUMMARY OF TOPICS A new title page is being issued to correct the ANSI des
3、ignation for the newly Reaffirmed American National Standard. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective
4、date note indicating the date of publication or the date on which the changed requirement becomes effective. The Reaffirmed requirements are substantially in accordance with Proposal(s) on this subject dated April 17, 2015 All rights reserved. No part of this publication may be reproduced, stored in
5、 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 warranties o
6、f 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, even if UL or
7、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 defend, indemnif
8、y, 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 in this Stand
9、ard 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 date are loca
10、ted after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JULY 13, 2015 UL 1694 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 13, 2015 UL 1694 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
11、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL February 18, 2002 (Title Page Reprinted: July 13, 2015) 1 UL 1694 Standard for Tests for Flammability of Small Polymeric Component Materials First Edition May, 1995 Second Edition July, 1997 Third Edition February 18, 2002 This ANSI/UL S
12、tandard for Safety consists of the Third Edition including revisions through July 13, 2015. The most recent designation of ANSI/UL 1694 as an American National Standard (ANSI) occurred on June 15, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or e
13、ffective 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 copyrighted by
14、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 1694-2010 (R2015)U
15、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 16, 2004 UL 1694 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Glos
16、sary .5 3 Units of Measurement .6 4 References .6 4.1 General .6 4.2 Referenced standards in this text .6 5 Apparatus 6 PERFORMANCE 6 Flammability Test for Small Components .10 6.1 Test criteria .10 6.2 Test specimens .11 6.3 Conditioning 11 6.4 Procedure 11 6.5 Test results .17 MARKING 7 General .1
17、7 NOVEMBER 16, 2004 UL 1694 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. NOVEMBER 16, 2004 UL 1694 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FR
18、OM UL INTRODUCTION 1 Scope 1.1 These requirements specify a needle-ame test to simulate the effect of small ames which may result from fault conditions within equipment in order to assess the re hazard by a simulation technique. 1.2 This test is applicable to small components which contain materials
19、 that can not be fabricated into standardized specimens in the minimum use thickness and subjected to applicable preselection tests, such as UL 94. Test procedures specied have been determined to be applicable to small components with an overall volume of less than 2500 mm 3 (0.15 in 3 ). Test proce
20、dures may not be applicable to small components with an overall volume greater than 2500 mm 3 (0.15 in 3 ). Test results may vary between small components which are similar in construction. Consideration should be given to the individual component construction to determine the suitability of extendi
21、ng results obtained for one component to other similar components. 1.3 The test is applied to ensure: that, under dened conditions, the test ame does not cause ignition of the small component, or that a combustible small component ignited by the test ame under dened conditions has a limited extent o
22、f burning and burning time, or that a combustible small component ignited by the test ame under dened conditions which is totally consumed has a limited burning time. 1.4 These requirements do not cover plastics when used as materials for building construction or nishing. 2 Glossary 2.1 RISK OF FIRE
23、 A risk of re is considered to exist at any two points in a circuit where: a) The open circuit voltage is more than 42.4 V peak and the energy available to the circuit under any condition of load, including short circuit, results in a current of8Ao rmore after 1 minute of operation, or b) A power of
24、 more than 15 W can be delivered into an external resistor connected between the two points. 2.2 FLAME CONFIRMATION The time for the temperature of the copper block, described in Figure 5.1 to increase from 100C to 700C shall be 23.5 s 1.0 s, when the ame test arrangement of Figure 5.2 is used. 2.3
25、EXTENT OF BURNING The extent of burning is measured after the specimen has been allowed to cool down to approximately room temperature and has been cleaned by means of a clean dry cloth. Extent of burning denotes the distance measured between the center of the area where the test ame is applied and
26、the most distance trace of burning. 2.4 EXTENT OF BURNING TIME The extent of burning time is the time of burning immediately following the application of the test ame until the aming of the specimen ceases. FEBRUARY 18, 2002 UL 1694 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
27、 DISTRIBUTION WITHOUT PERMISSION FROM UL 2.5 TRACE OF BURNING Trace of burning denotes the destroyed area of the surface of the specimen affected by burning including charred areas. When determining the trace of burning, changes in color, soot formation, distortion of shape due to heat, melting and
28、scorching of the surface should be ignored. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 References 4.1 General 4.1.1 Any undated reference to a code or standard appearing in the requirements of
29、this standard shall be interpreted as referring to the latest edition of that code or standard. 4.2 Referenced standards in this text 4.2.1 If a designation for a test method is followed by an alternate or equivalent designation, in parenthesis, the latter method can be considered technically equiva
30、lent, though not necessarily identical, and might yield somewhat different numerical test results. ASTM D 618, Method for Conditioning Plastics and Electrical Insulating Materials for Testing (ISO 291 : Plastics Standard Atmospheres for Conditioning and Testing) ASTM D 3195, Practice of Rotameter Ca
31、libration IEC 60695-11-5 , Fire hazard testing Part 11-5: Test ames Needle-flame test method Apparatus, conrmatory test arrangement and guidance (formerly IEC 60695-2-2). 4.2.1 revised February 17, 2006 5 Apparatus 5.1 Laboratory Fume Hood having an inside volume of at least 0.5 m 3 , is to be used
32、when testing the specimens. The chamber is to permit observation and is to be draft free while permitting normal thermal circulation of air past the specimen during burning. For safety and convenience, it is desirable that this enclosure (which can be completely closed) be tted with an evacuation de
33、vice, such as an exhaust fan to remove products of combustion which may be toxic. However, it is important to note that the device shall be turned off during the actual test and started again immediately after the test to remove the products of combustion. NOTE: The amount of oxygen available to sup
34、port combustion is naturally important for the conduct of these ame tests. For tests conducted by this method when burning times are prolonged, chamber sizes less than 1 m 3 may not provide accurate results. This is generated text for gtxt. 5.2 Laboratory Burner A laboratory type burner having a tub
35、e with a length of at least 35 mm and an inside diameter of 0.5 0.1 mm. The outside diameter shall not exceed 0.9 mm. The burner shall be in accordance with IEC 60695-11-5. FEBRUARY 17, 2006 UL 1694 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION F
36、ROM UL NOTE: A hypodermic needle with the tapered end removed has been found acceptable for the test. 5.2 revised February 17, 2006 FEBRUARY 17, 2006 UL 1694 6AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 16, 2004 UL 1694 6B No T
37、ext on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 5.1 Copper block FEBRUARY 18, 2002 UL 1694 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 5.2 Conrmato
38、ry test arrangement FEBRUARY 18, 2002 UL 1694 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.3 Ring Stands Laboratory ring stands with clamps or the equivalent, for positioning of the specimen. Laboratory ring stands with clamps adjustab
39、le to the desired angles and heights. 5.4 Timing Devices Accurate to 0.1 second. 5.4 revised November 24, 2010 5.5 Measuring Scale Graduated to mm. 5.6 Gas Supply A supply of butane gas with a minimum purity of 95 percent with regulator and meter for uniform gas ow, in accordance with IEC 60695-11-5
40、. 5.6 revised February 17, 2006 5.7 Micrometer / Caliper Capable of being read to 0.1 mm. 5.8 Cotton A supply of absorbent 100 percent cotton. 5.9 Desiccator Chamber containing anhydrous calcium chloride or other drying agent, capable of being maintained at 23C 2C and relative humidity not exceeding
41、 20 percent. 5.10 Air-Circulating Oven To provide a conditioning temperature of 70C 1C, while not providing less than ve air changes per hour. 5.11 Control Valve One control valve is required to set the gas ow rate, in accordance with IEC 60695-11-5. 5.11 revised February 17, 2006 5.12 Copper Block4
42、m mdiameter, of mass 0.58 g 0.01 g in the fully machined but undrilled state, in accordance with IEC 60695-11-5. 5.12 revised February 17, 2006 5.13 Thermocouple Sheathed ne wire type K (NiCr/NiAl) outer sheath diameter 0.5 mm, suitable for long term operation at 1050C, in accordance with IEC 60695-
43、11-5. NOTE: Preferred method of fastening thermocouple to block is by compressing the copper around the thermocouple. 5.13 revised February 17, 2006 5.14 Temperature Indicating/Recording and Timing Devices Appropriate for the measurement of the time for the block to heat up from 100C 3C to 700C 2C w
44、ith a time uncertainty of 0.1 s, in accordance with IEC 60695-11-5. 5.14 revised February 17, 2006 NOVEMBER 24, 2010 UL 1694 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 6 Flammability Test for Small Components 6.1 Test crite
45、ria 6.1.1 A small component shall be classied SC-0, SC-1, SC-2, SC-TC 0, SC-TC 1, or SC-TC 2 on the basis of results obtained on parts or specimens when tested as described in 6.4. 6.1.2 Table 6.1 species the material classications. Exception: Small components that are molded from materials that are
46、 classed as 5VA, 5VB, V-0, V-1, or V-2 in the minimum use thickness by the vertical burning test described in the requirements for standard for tests for ammability of plastic materials for parts in devices and appliances, UL 94, need not be subjected to the ammability test described in 6.4. Table 6
47、.1 Material classications Criteria conditions SC a -0 SC-1 SC-2 SC b -TC 0 SC-TC 1 SC-TC 2 Afterame time for each individual component or specimen t b1 or t b2 10s 30s 30s 10s 30s 30s Total afterame time for any conditioned set of components or specimens (t b1 plus t b2 for the ve components or spec
48、imens) 50s 250s 250s 50s 250s 250s Afterame plus afterglow time for each individual component or specimen (t b2 plus t b3 for each component or specimen) 30s 60s 60s 30s 60s 60s Cotton indicator ignited by aming particles or drops No No Yes No No Yes Complete consumption of component or specimen No
49、No No Yes Yes Yes a SC - Small Component b TC - Total Consumption FEBRUARY 17, 2006 UL 1694 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.2 Test specimens 6.2.1 If possible, the specimen should be a complete component or sub-assembly. If it is necessary to cut off a suitable part to perform the test, care must be
