Test Data

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" height=82 BGCOLOR="#99CC99" TEXT="#080000" bgproperties="fixed" background="12000520esnpct.jpg"> <div> <FONT SIZE="5" COLOR="#000000" FACE="Arial" ><B>Communications & Ear Protection, Inc.</B></FONT><B>     </B><B>|</B><B>     </B><A HREF="index.htm" TARGET="_top" TITLE="Communications Ear Protection, Inc."><U><B>home</B></U></A></div> <div> <A HREF="id35.htm" TARGET="_top" TITLE="CEP introduction"><U>CEP introduction</U></A>   |   <B>Test Data   </B>   |   <A HREF="id38.htm" TARGET="_top" TITLE="Product List "><U>Product List </U></A>   |   <A HREF="id40.htm" TARGET="_top" TITLE="Product Applications"><U>Product Applications</U></A>   |   <A HREF="id41.htm" TARGET="_top" TITLE="Navy Products"><U>Navy Products</U></A>   |   <A HREF="id28.htm" TARGET="_top" TITLE="Installation of CEP into HGU56/P and SPH"><U>Installation of CEP into HGU-56/P and SPH-4 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Aearo Company's E<FONT SIZE="3" COLOR="#000000" FACE="Symbol" >·</FONT>A<FONT SIZE="3" COLOR="#000000" FACE="Symbol" >·</FONT>RCAL<FONT SIZE="1" COLOR="#000000" FACE="Arial" >SM</FONT> Acoustical Laboratory, May 2000.  NRR per EPA-1979 is 29.5</div> <bR> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="461" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 39 WIDTH="136"><div> <B>Test Frequency (Hz)</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> <B>Mean Attenuation (dB)</B></div> </tD> <tD VALIGN=TOP WIDTH="159"><div> <B>Standard Deviation (dB)</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>125</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 29.7</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 5.3</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>250</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 34.2</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 5.9</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>500</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 39.7</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 4.7</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>1000</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 42.1</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 5.1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>2000</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 38.0</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 3.2</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>3150</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 43.2</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 3.2</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>4000</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 43.5</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 3.5</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>6300</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 47.5</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 4.5</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="136"><div> <B>8000</B></div> </tD> <tD VALIGN=TOP WIDTH="152"><div> 46.1</div> </tD> <tD VALIGN=TOP WIDTH="159"><div> 4.4</div> </tD> </tR> </TABLE></div> <bR> <div> <U>--------------------------------------------------------------------------------------------------------------------------</U></div> <bR> <bR> <div> Mean speech intelligibility in percent for HGU-56/P with CEP and HGU-56/P.  </div> <div> Speech material was presented at constant speech levels for both devices.  </div> <bR> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="461" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="148"><div> <B>Device</B></div> </tD> <tD VALIGN=TOP WIDTH="98"><div> <B>Alone</B></div> </tD> <tD VALIGN=TOP><NOBR><div> <B>Spectacles</B></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="98"><div> <B>CB Mask</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>HGU-56/P with CEP</B></div> </NOBR></tD> <tD VALIGN=TOP WIDTH="98"><div> 92.0</div> </tD> <tD VALIGN=TOP WIDTH="98"><div> 92.2</div> </tD> <tD VALIGN=TOP WIDTH="98"><div> 90.1</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="148"><div> <B>HGU-56/P</B></div> </tD> <tD VALIGN=TOP WIDTH="98"><div> 71.1</div> </tD> <tD VALIGN=TOP WIDTH="98"><div> 55.8</div> </tD> <tD VALIGN=TOP WIDTH="98"><div> 53.6</div> </tD> </tR> </TABLE></div> <bR> <bR> <bR> <bR> </td> </tr></table></body>