1、Designation: E 987 88 (Reapproved 2001)Standard Test Methods forDeglazing Force of Fenestration Products1This standard is issued under the fixed designation E 987; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 These test methods measure the resistance of elementsof fenestration products such as operating (or removable)window sashes,
3、 storm sashes, and sliding glass door panels(hereafter referred to as sash members) to forces tending todeglaze the construction.1.2 These test methods utilize concentrated loads applied tothe interior side of a sash member in a manner simulatingnormal opening and closing forces. Removable sashes ar
4、eloaded to simulate handling for removal and cleaning.1.3 The values stated in inch-pound units are to be regardedas the standard. The metric (SI) equivalents of inch-poundunits may be approximate.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its us
5、e. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:E 631 Terminology of Building Constructions23. Terminology3.1 DefinitionsFor
6、 definitions of terms used in these testmethods, refer to Terminology E 631.3.2 Descriptions of Terms Specific to This Standard:3.2.1 deglazingthe movement of a sash member from itsoriginal position in relation to the glazing material. Deglazingis expressed as a percentage of the original (before te
7、sting)glazing “bite.”3.2.2 deglazing forcethe force required to obtain thedeglazing measured.3.2.3 bitethe distance from the edge of the glazing mate-rial to the sight line.4. Significance and Use4.1 Under normal usage, deglazing loads are generallyapplied parallel to the plane of the glazing materi
8、al andeccentric to the sash element when it is opened, closed, or liftedout of the frame. When operating hardware is present, torsionalforces may be increased. Opening and closing forces arenormally applied from the interior side only. Sliding glass doorpanels are activated from both sides.4.2 The a
9、bility of fenestration products to resist deglazingforces may vary with a number of factors. These factors shouldbe considered when selecting test specimens or when interpret-ing test results. Bedding compounds in newly assembledsashes may not reach full strength until they have been allowedto cure
10、for several days or weeks. Some sash materials aresubject to shrinkage at low temperatures and increased elastic-ity at high temperatures. Therefore, a sash containing thesematerials may exhibit a range of deglazing resistance due tovarying temperature conditions. Normal manufacturing toler-ances an
11、d clearances in sash members and glazing materialsmay also affect deglazing resistance. Further, although fenes-tration products are designed to operate within certain forcelimits, improper installation, wear, and abuse may increase theforces necessary for sash operation.4.3 When determining which m
12、embers of a given sash shallbe tested for deglazing resistance, consideration must be givento the manner in which the sash may be operated whennormally installed. Handles and lift devices are usually locatedon the sash for the convenience of the operator and thereforedictate the normal direction of
13、operation.4.4 Test Method A presents a technique for actual measure-ment of the deglazing forces of an individual sash member.4.5 Test Method B presents a technique for measuring thedeglazing force of two opposite members. This test method isintended for quality control measurements.5. Apparatus5.1
14、Hydraulic or Pneumatic Ram, or an equivalent capableof producing at least a 100-lbf (445-N) force when connectedto a hydraulic pump or compressed air supply, or an equivalentof suitable capacity. The ram piston extension can be fitted toallow the addition of extensions to accommodate the width orlen
15、gth of the specimen to be tested.1These test methods are under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and are the direct responsibility of Subcommittee E06.51on Component Performance of Windows, Curtain Walls, and Doors.Current edition approved Feb. 26, 1988. Published Jul
16、y 1988. Originallypublished as E 987 64. Last previous edition E 987 84.2Annual Book of ASTM Standards, Vol 04.11.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.1 Sliding Contact Shoe, to be fitted on either end of theram, as sh
17、own in Fig. 1.5.1.1.1 For Test Method A, only one shoe is required, sincethe opposing force will be dissipated against a stationarysupport.5.1.1.2 For Test Method B, two contact shoes are required togenerate the opposing forces against opposite sash members.5.1.2 Force Gage, capable of measuring for
18、ce to an accu-racy of 61.0 lbf (64.5 N).5.1.2.1 The apparatus, including the gage system, shall becalibrated and a calibration curve prepared every 6 monthscorrelating gage readings to pounds-force generated.5.2 Extensometers, capable of being read to an accuracy of0.01 in. (0.25 mm), required to me
19、asure the deflection of themembers under test. One extensometer is required for TestMethod A and two extensometers are required for Test MethodB.6. Test Specimen6.1 Submit the test specimen glazed in accordance with themanufacturers standard practices for the window sash or thedoor panel to be teste
20、d. The test specimen shall be of themaximum width and maximum height for which the test datais to be determined.6.2 The sash or panel members to be included in this test arethose having integral pull provisions, and those having nointegral pull provisions, but fitted with handles, latches, orother m
21、eans that might be used to operate the window or door.Removable window sashes, because of their inherent capabilityof being lifted by any sash surround, shall be tested on all foursash surround members.6.2.1 Test sliding glass door panels from both the interiorand exterior side on the stile containi
22、ng the locking mecha-nism, necessitating the submission of at least two panels foreach door tested.6.3 Acclimate the test specimen to the ambient conditionsunder which the test shall be conducted.7. Procedures7.1 Test Method A:7.1.1 Provide a reaction fixture capable of withstanding atleast the anti
23、cipated maximum deglazing load to be achieved.The fixture shall be designed so that when the ram is attached,the ram will be perpendicular to the member under test at thecenter point of the member, and parallel to the plane of glazing.7.1.2 Support the test specimen, with the side to whichmanual for
24、ce is normally applied to operate the sash facingupward, on (at least) two 2 by 4-in. (51 by 102-mm) woodensupports located under the glass or other glazing material. Twoof the wooden supports shall be located within 1 in. (25.4 mm)of each of the parallel sash members and be of sufficient lengthto e
25、xtend within 1 in. of each perpendicular sash member.7.1.3 Provide a mechanical stop at each corner of the testspecimen to prevent movement of the test specimen in thedirection of loading. The mechanical stops shall not engage thetest specimen for more than12 in. (12.7 mm) from the cornerof the spec
26、imen.7.1.4 Adjust the ram assembly to the appropriate lengthwith the ram extenders so that the contact shoe is within12 in.(12.7 mm) of the member to be tested. Install the ram onto thereaction fixture (in accordance with 7.1.1) so that the ram isperpendicular to the member under test and parallel t
27、o theplane of glazing. The centerline of the contact shoe mustcorrespond to the centerline of the sash member being tested.7.1.5 Place an extensometer at the center of the sashmember under test to measure the deflection of the memberwhen the load is applied.7.1.6 Mark the glazing bite at the point w
28、here the shoe willmake contact with the sash member.7.1.7 Apply the required specification load for 30 s, measureand record the extensometer reading (Le), and release the load.The loading period required to achieve the specified loadshould not exceed 15 s.7.1.8 Remove the sash member under the test
29、from theglazing material, being careful not to break the glazingmaterial. Measure the distance from the mark described in1Hydraulic ram foot. The dimensions are not critical.2Aluminum block, 114 by2by38 in. (32 by 50 by 10 mm)3Attachment bolt,14 in. (6 mm)FIG. 1 Sliding Contact Deglazing ShoeE 987 8
30、8 (2001)27.1.6 to the edge of the glazing material. Record this measure-ment as the glazing bite (Lb).7.2 Test Method B:7.2.1 Support the test specimen, with the side to whichmanual force is normally applied to operate the sash facingupward, on (at least) two 2 by 4-in. (51 by 102-mm) woodensupports
31、 located under the glazing material and parallel to thesash members under test. Two of the wooden supports shall belocated within 1 in. (25.4 mm) of each of the parallel sashmembers and be of sufficient length to extend within 1 in. ofeach perpendicular sash member.7.2.2 Adjust the ram assembly to t
32、he appropriate lengthwith the ram extenders so that the contact shoes are within 1.5in. (38.1 mm) of the members to be tested. Install the ramassemby onto the glass so that the centerline of the contactshoes correspond to the centerlines of the sash members beingtested.7.2.3 Place an extensometer at
33、 the center of each sashmember under test to measure the deflection of the memberwhen the load is applied.7.2.4 Mark the glazing at the point where the contact shoeswill make contact with the sash members.7.2.5 Apply the required specification load for 30 s, measureand record the extensometer readin
34、gs (Le), and release the load.The loading period required to achieve the specified loadshould not exceed 15 s.7.2.6 Remove the sash members under test from the glazingmaterial, being careful not to break the glazing material.Measure the distance from the marks described in 7.2.4 to theedge of the gl
35、azing. Record these measurements as the glazingbite (Lb).8. Calculation8.1 Calculate the percentage deglazed for the member undertest as follows:Dx5LeLb100! (1)where:Dx= percent deglazed at load x applied to the sash mem-ber,x = load applied at which Leis measured, lbf (N),Lb= original depth of bite
36、 on the glazing material, in.(mm), andLe= movement of the sash member under x, lbf (N).9. Report9.1 Report the following information:9.1.1 Manufacturers name and address of the window sashor door panel.9.1.2 Name and address of the testing agency.9.1.3 Type and thickness of the glazing material(s) u
37、sed inthe test specimen.9.1.4 Drawing or complete description of the sash memberstested. Dimensions on drawings shall be verified by the testingagency.9.1.5 Complete description of the glazing system, includingcomponent materials, such as backbedding compound, glazingcompound, gasketing, etc. When s
38、uch a description includesdrawings, dimensions shall be verified by the testing agency.9.1.6 Tabulation of the loads applied, the percentage ofdeglazing observed under those loads, and the test methodsused.9.1.7 Statement that the tests were performed in accordancewith these test methods; or, if any
39、 deviation was used, atreatment describing the deviation.10. Precision and Bias10.1 The precision and bias of these test methods have notbeen established.As soon as statistically valid data is compiled,precision and bias will be stated.11. Keywords11.1 deglazing loads; deglazing resistance; doors; s
40、lidingglass doors; storm sashes; window sashesASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, a
41、nd the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revis
42、ion of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you s
43、houldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).E 987 88 (2001)3
