11/105 cofrac CSTB Ie futur en construction TEST REPORT N° AC14-26051052/3 PRACTICAL SOUND ABSORPTION COEFFICIENT a p OF SUSPENDED CEILING PANELS REQUESTER, MANUFACTURER SAINT GOBAIN ECOPHON NAME Focus A 20 mm FITNESS FOR PURPOSE Unchecked =: ESSAIS Test 2 Date 16/05/14 AA45 Station ALPHA STANDARDS EN ISO 354, EN ISO 11654, prEN 16487 CONFIGURATION 200 mm overall depth of construction MAIN CHARACTERISTICS MEASUREMENT CONDITIONS Dimensions in mm : 2960 x 3550 Empty room: Area in m2 : 10.5 Thickness in mm : 20 Temperature: lS.0oC Relative humidity: 60% Mass per unit area in kg/m 2 : 1.5 Mounting type : E-200 RESULTS f 1,0 I I I I t I I I ------ -- ---- -------- ---- - ----- 125 I I I I : : :: 0,8 I I , I t I : : : : : : 250 -- -- -t-- -- --- --:- ----- --- --: ------- -- -- t----- -- - --- t-- -- - --- --- t --- -- : : : : : : 0,6 I I I I I 500 I I I I I I I I I I ---- ---------- -t" -------- -- -1""- --------- -,. ------- -- --,. --- -- - -- -- -,. --- -- I I I I I I I I I I I I I I I 0,4 I I I I I I I I I I I I 1000 I I I I I I -- -- -i ------- -- --,-- ------- --1-- ----- ----r- -- -- -- -- -- r- -- -- -- - --- r -- --- 0,2 I I I I I I 2000 ---- -r -------- -- -r-- ------ ---r -- ------ -- -r -- -- -- - -- --t - - CSTB -- 4000 0,0 I I I I I . ' Hz Room with sample: Temperature: 19.0 o C Relative humidity: 55% Op 0,50 0,90 1,00 0,90 1,00 1,00 Ow= 1,00 classement / class: A It is strongly recommended to use this single number rating in combination with the complete sound absorption coefficient curve. Tramecofrac.dot, rev 11 du 12/02/14 R14-26051052-3.doc