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'flI TflflS NS sCO'LTSTICAS. L_EiSORATORIES <br /> OF <br /> 1512 BATAVIA AVENUE IIT RESEARCH INSTITUTE 630/232-0104 <br /> IENEVA, ILLINOIS 60134 FOUNDEDIgISBY <br /> �I+ RSPORT WALLACECLEMENTSABINE <br /> K-X Industries, Inc. RAL'"-TL98-195 <br /> 10 September 1998 Page 2 of 3 <br /> TEST RESULTS <br /> Sound transmission loss values are tabulated at the eighteen standard <br /> frequencies. A graphic presentation of the data and additional information <br /> appear on the following pages. The precision of the TL test data are within <br /> the limits set by the ASTM Standard E90-97. <br /> FREQ. T.L. C.L.. DEF. FREQ. T.L. C.L. DEF. <br /> 100 39 0.28 0 800 62 0.32 ' 0 <br /> 125 39 0.12 0 1000 65 0.30 0 <br /> 160- - 37 0.20 5 1250 68 0.24 0 <br /> 4IW 200 38 0.24 7 1600 70 0.26 0 <br /> 250 41 0.31 7 2000 70 0.19 0 <br /> 315 47 0.28 4 2500 63 0.18 0 <br /> 400 49 0.29 5 3150 62 0.18 0 <br /> 500 55 0.39 0 4000 62 0.11 0 <br /> 630 58 0.34 0 5000 64 0.10 0 <br /> STC = 55 <br /> ABBREVIATION INDEX <br /> FREQ. = FREQUENCY, HERTZ, (cps) <br /> T.L. = TRANSMISSION LOSS, dB <br /> C.L.. = UNCERTAINTY IN dB, FOR A 95% CONFIDENCE LIMIT <br /> DEF. = DEFICIENCIES, dB<STC CONTOUR <br /> STC = SOUND TRANSMISSION CLASS <br /> Tested & - <br /> Reviewed hy7Th .�,, ubmitted b <br /> Dean Victor eter E. Straus <br /> Senior Experimentalist Senior Experimentalist <br /> kir <br /> THE RESULTS REPORTED ABOVE APPLY ONLYTO THE SPECIFIC SAMPLE SUSWITED FOR MEASUREMENT.NO RESPONSIBILT'IS ASSUMED FOR PERFORMANCE OF ANT OTHER SPECIMEN. <br /> ry�D��n (� ACCREDITED BY DEPARTMENT OF COMMERCE, NATIONAL VOLUNTARY LABORATORY <br /> UMV T' THE LABORATORY'S ACCREDITATION OR ANY OF ITS TEST REPORTS INONO WAY CONSTITUTES <br />