1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1439 Tests for Sharpness of Edges on EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED
2、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Tests for Sharpness of Edges on Equipment, UL 1439 Fifth Edition, Dated April 21, 2015 Summary of Topics This Fifth Edition of ANSI/UL 1439 has been issued as an editorial update only. No changes in requi
3、rements have been made. All rights reserved. No part of this publication may be reproduced, 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 warr
4、anty of any kind, either expressed or implied, including but not limited to, the implied 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,
5、 or any other damages arising out of the use of or the inability to use this Standard, even 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
6、 of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, 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 purchase
7、r is storing an electronic Standard on the purchasers computer system. The requirements in 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.
8、The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. APRIL 21, 2015 UL 1439 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS
9、ION FROM UL APRIL 21, 2015 UL 1439 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL April 21, 2015 1 UL 1439 Standard for Tests for Sharpness of Edges on Equipment The First and Second editions were titled Determinatio
10、n of Sharpness of Edges on Equipment. First Edition October, 1978 Second Edition December, 1979 Third Edition February, 1993 Fourth Edition February, 1998 Fifth Edition April 21, 2015 This ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL 1439 as an Am
11、erican National Standard (ANSI) occurred on October 15, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. The Department of Defense (DoD) has adopted UL 1439 on August 2, 1989. The publication of revised pages or a new e
12、dition of this Standard will not invalidate the DoD adoption. 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 Stand
13、ards for Safety are copyrighted 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 LABORATOR
14、IES INC. ANSI/UL 1439-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO
15、N WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Units of Measurement .4 3 Undated References 4 CONSTRUCTION 4 General 4 TESTS 5 Apparatus 4 6 Calibration of Tester .8 7 Test Procedure .9 8 Criteria .12 9 Report 12 APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 3UL
16、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover a test procedure to be used to determine the potential personal injury related to the sharpness of edges that are part of or associated with appl
17、iances and equipment. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Undated References 3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be inter
18、preted as referring to the latest edition of that code or standard. CONSTRUCTION 4 General 4.1 An edge of an enclosure opening, frame, guard, knob, handle or the like of an appliance or equipment shall be smooth and rounded so as not to cause a cut-type injury when contacted during normal use or use
19、r maintenance. Exception: A sharp edge that must be exposed to enable the product to perform its intended function need not comply with the requirement in 4.1. TESTS 5 Apparatus 5.1 The test apparatus is to consist of the following: a) Sharp-Edge Tester The instrument consists essentially of a handl
20、e with a pivoted arm attached. A constant-tension spring secured to the handle is used to apply a steady force to the arm. The arm head is a piece of cylindrical steel, with an outside diameter of 1/2 in (12.7 mm) and a length of 3/4 in (19 mm), located at the end of the adjustable arm. The arm head
21、 is to be wrapped with three layers of tape, the two outer layers act as sensing tapes; the inner layer acts as an indicating tape. Alternately, the tapes are to be applied to a removable sleeve or cap that is placed onto the 1/2 in (12.7 mm) steel arm head. The sleeve or cap shall not exceed 5/8 in
22、 (15.9 mm) in diameter. See Figure 5.1 or 5.2. b) Indicating Tape (Inner Layer) 3/4 in (19.1 mm) wide, adhesive backed, single-adhesive coated, vinyl foam tape, black in color, having the tape properties given in Table 5.1. c) Sensing Tape No. 2 (Middle Layer) 3/4 in (19.1 mm) wide, double-adhesive
23、coated, vinyl foam tape, white in color, having the tape properties given in Table 5.1. d) Sensing Tape No. 1 (Outer Layer) 3/4 in (19.1 mm) wide, single-adhesive coated skived tetrauorethylene tape natural color, having the tape properties given in Table 5.1. The skived tetrauorethylene backing (lm
24、) is shaved in a thin layer from a cylindrical block of material. APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL e) Calibration Equipment A mass that can exert 1-1/2 0.03 l
25、bf (6.672 0.133 N) and a length of string. This is generated text for gtxt. APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 5.1 Sharp edge tester A Head, steel, 1/2 i
26、n diameter (12.7 mm), 3/4 in long (19 mm) B Arm, steel, 1/4 in diameter (6.4 mm), adjustable C Adjustment screw D Main drum, free to rotate on stud, sleeve bearing E Negator s-ring, 1/2 in wide (12.7 mm), 6-1/2 in long (165 mm) F Storage drum, free to rotate on stud, sleeve bearing G Adjustable wren
27、ch H Handle assembly I Stop APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 5.2 Sharp edge tester with tape cap (alternate construction) A Head, steel, 1/2 in (12.7 m
28、m) diameter, 3/4 in (19 mm) long B Tape sleeve or cap, maximum 5/8 in (15.9 mm) diameter removable sleeve APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 5.1 Average v
29、alues of tapes-dimensions and properties Indicating tape a Sensing tape No. 2 b Sensing tape No. 1 c Thickness 0.045 0.080 in 0.025 0.040 in total with adhesive backing: 0.0045 (0.114 mm) (1.14 2.03 mm) (0.64 1.02 mm) backing: 0.0025 0.0035 inch (0.064 0.089 mm) Density 25 27 lbs/cubic foot 14 20 lb
30、s/cubic foot (400 433 kg/cubic meter) (224 321 kg/cubic meter) a 3M Company Type 4516 or any other tape having the properties in Table 5.1 meets the intent of the requirements. b 3M Company Type 4432, TapeCase Ltd. Type VF 32, or Press-On Inc. Type VF 20103, or any other tape having the properties i
31、n Table 5.1 meets the intent of the requirements. c Saint Gobain Company #2045-3 or any other tape having the properties in Table 5.1 meets the intent of the requirements. 6 Calibration of Tester 6.1 The sharp edge tester is to be calibrated so that a 1-1/2 0.03 lbf (6.672 0.133 N) is present at the
32、 center of the head when the arm is between stops. The length of the arm is to be adjustable for calibration purposes. See Figure 6.1 for a typical calibration procedure. Exception: For special evaluations, when specied in the end-product standard, the force may be adjusted to a different value. 6.2
33、 The adjustment set screws that hold the pivoted arm in place in the main drum are to be loosened. 6.3 With the handle securely held in a horizontal position, the calibration weight is to be attached to the center of the head. 6.4 The length of the arm within the main drum is to be adjusted so that
34、the weighted arm remains in a horizontal position with the calibration weight attached. 6.5 The adjustment setscrew(s) are to be tightened to securely lock the pivot arm in place within the main drum. 6.6 The calibration is to be rechecked and the weight removed. This is generated text for gtxt. APR
35、IL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7 Test Procedure 7.1 The curved face of the tester head is to be covered with three layers of tape in the order indicated below:
36、 a) First Layer (Inner Layer) Indicating type, black vinyl foam tape as described in 5.1(b). b) Second Layer (Middle Layer) Sensing Tape No.2, white vinyl foam tape as described in 5.1(c). c) Third Layer (Outer Layer) Sensing Tape No.1, tetrauorethylene tape as described in 5.1(d). 7.2 Each tape is
37、to be applied over approximately 180 degrees of the circumference of the test head to prevent stretching of the tape. 7.3 The tapes are not to be stretched when positioned on the head. See Figure 7.1 7.4 The center of the tape-covered head of the sharp-edge tester is to be positioned on the edge to
38、be tested in the manner illustrated in Figure 7.2. The arm of the tester is to be between stops so that the tape-covered head exerts a 1-1/2 lbf (6.7 N) on the edge. The tester is to be immediately moved along the edge a distance of 2 in (50.8 mm) and then back to its starting position without remov
39、al of the tester from the edge. It is to then be withdrawn from the edge. The total distance of engagement between the edge and the tape-covered head is not to exceed 4 in (101 mm). The time of travel is not to take longer than 5 seconds nor less than 2 seconds. Figure 6.1 Typical calibration proced
40、ure APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Exception: An edge less than 2 in (50.8 mm) long is to be tested for a distance of twice its length. (Example: For an edg
41、e 1-1/2 in or 41.2 mm long, the tester is to be moved along its length and back to the starting position so that the total distance of engagement between the edge and tester is 3 in or 76.2 mm). This is generated text for gtxt. This is generated text for gtxt. Figure 7.1 Preparation of head APRIL 21
42、, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 7.2 Test procedure APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 11UL COPYRIGHTED MATERIAL NOT AUTHORIZE
43、D FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7.5 The tape-covered head is to be examined to determine whether or not penetration has occurred through the two sensing layers. If penetration has occurred through the two sensing layers, the black indicating tape will be visible
44、 through the resulting cut. 8 Criteria 8.1 The application of the sharp-edge tester shown in Figure 5.1 or Figure 5.2 to an accessible edge as described in Sections57shall not result in the cutting through of the two outer layers of the sensing tapes. 9 Report 9.1 The report is to include each of th
45、e following items: a) Identication of the equipment tested, including the manufacturers identity, class of product, and the model designation; b) Identication of each edge tested by description of its location; c) Record of the observation related to penetration of the sensing tapes. (Example: Acceptable or unacceptable); and d) Date of test. APRIL 21, 2015 TESTS FOR SHARPNESS OF EDGES ON EQUIPMENT - UL 1439 12
