CINXE.COM

<html> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://ozone.unep.org:80/Publications/MP_Handbook/index.shtml","20150817020546","https://web.archive.org/","web","/_static/", "1439777146"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/> <title>Handbook for the Montreal Protocol on Substances that Deplete the Ozone Layer</title> <link href="/web/20150817020546cs_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/HB_Styles.css" rel="stylesheet" type="text/css"/> </head> <body>  <body leftmargin="0" topmargin="0" align="center"> <style> body { font-family: Arial, Helvetica, sans-serif} A:link { text-decoration: underline; color: #3366CC; } A:visited { text-decoration: underline; color: #3366CC; } A:hover { color: #000000; text-decoration: none; } A.menu:link { text-decoration: none; color: #FFCC00; } A.menu:visited { text-decoration: none; color: #FFCC33; } A.menu:hover { color: #000000; text-decoration: underline; } p { color: #000000; text-align: left ; font-size: x-small; font-family: Arial, Helvetica, sans-serif } h1 { color: #ffcc00; text-align: center ; ; font-size: medium } h2 { color: #0066cc; font-weight: normal; font-size:medium } h3,h5 { font-style: italic ; font-size:small } h4 { font-size:small } .menu { font-weight: bold; color: #FFCC33; letter-spacing: normal; text-decoration: none; } .menu-home { font-weight: bold; color: #000000; letter-spacing: normal; text-decoration: none; } .submenu { font-weight: normal; color: #FFFFFF; letter-spacing: normal; text-decoration: none; } .Linkhighlights { font-weight: lighter; color: #66CCFF; letter-spacing: normal; text-decoration: none; } td {vertical-align: top; background-repeat:no-repeat} tr {background-repeat:no-repeat} hr {color: #0066CC; height: 1} table { font-size: x-small} .font_xxsmall { font-size: xx-small} .font_red { color: #FF0000} .style9 { text-decoration: none; color: #FFFFFF; font-weight: bold; </style> <script language="javascript" src="/web/20150817020546js_/http://ozone.unep.org/ozone/includes/incl_functions.js"> </script> <table width="750" border="0" cellspacing="0" cellpadding="0" align="center"> <tr> <td height="88" background="/web/20150817020546im_/http://ozone.unep.org/ozone/includes/images/banner-bk3.jpg" colspan="3" bgcolor="#0066CC"> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="177" rowspan="2" valign="top" align="right"><a href="https://web.archive.org/web/20150817020546/http://www.unep.org/"><img src="/web/20150817020546im_/http://ozone.unep.org/ozone/includes/images/unep-logo1.gif" width="55" height="63" border="0"></a></td> <td width="573"> <p><strong><font color="#000000" size="4">   United Nations Environment Programme<br> </font><font color="FFCC33" size="4">   Ozone Secretariat</font></strong></p> </td> </tr> <tr> <td align="right"> <form method="GET" action="https://web.archive.org/web/20150817020546/http://www.google.com/custom" id="Form1"> Search <input style="font-size:8pt" type="text" name="q" size="25" maxlength="255" value="" id="Text1"> <input style="font-size:8pt" type="hidden" name="cof" value="LW:640;L:/ozone/includes/images/ozone_banner_google.gif;LH:70;AH:left;GL:0;S:http://ozone.unep.org/;AWFID:68a6b7c680718fd7;" id="Hidden1"> <input style="font-size:8pt" type="hidden" name="domains" value="ozone.unep.org" id="Hidden2"> <input style="font-size:8pt" type="hidden" name="sitesearch" value="ozone.unep.org" id="Hidden3"> <input style="font-size:8pt" type="submit" name="sa" value="Go !" id="Submit1"> </form> </td> </tr> </table> </td> </tr> <tr> <td width="177" rowspan="2" valign="top" bgcolor="#0066CC"> <script language="javascript" src="/web/20150817020546js_/http://ozone.unep.org/ozone/includes/incl_menu.js"> </script> </td> <td width="383" height="30" valign="top"> <script language="javascript" src="/web/20150817020546js_/http://ozone.unep.org/ozone/includes/incl_breadcrumb.js"> </script> </td> <td width="190" height="30" valign="top" align="right"> <script language="javascript" src="/web/20150817020546js_/http://ozone.unep.org/ozone/includes/incl_print_link.js"> </script> </td> </tr> <tr> <td colspan="2" valign="top" style="padding: 10px">   <table class="tblHBTitle"> <tr> <td class="HB_title0" nowrap>Handbook for the Montreal Protocol on Substances <br/> that Deplete the Ozone Layer - 7<sup>th</sup> Edition (2006)</td>  <form action="https://web.archive.org/web/20150817020546/http://ozone.unep.org/Publications/MP_Handbook/HB_Search_Results.shtml" method="get"> <td class="search" align="right" nowrap="nowrap"><input size="14" name="words" title="Search the Montreal Protocol Handbook"/> <input name="restrict" type="hidden" value="MP_Handbook/"/> <input name="Search" type="submit" title="Search the Montreal Protocol Handbook" value=">>" alt="Search the Montreal Protocol Handbook"/> <br/> <a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/HB_Advanced_Search.shtml" title="Advanced Search for the Montreal Protocol Handbook">Advanced search</a> </td> </form> </tr> </table> <table class="sectionnav"> <tr valign="top" nowrap="nowrap"> <td class="black_bold"> Sections  </td> <td><img height="15" alt="Section One" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_01_Off.gif" width="15"/></td> <td nowrap="nowrap"><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_1_The_Montreal_Protocol/index.shtml">The Montreal<br/> Protocol</a> </td> <td><img height="15" alt="Section Two" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_02_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_2_Decisions/index.shtml">Decisions</a> </td> <td><img height="15" alt="Section Three" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_03_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_3_Annexes/index.shtml">Annexes</a> </td> <td><img height="15" alt="Section Four" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_04_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_4/index.shtml">Rules of<br/> Procedure</a> </td> <td><img height="15" alt="Section Five" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_05_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_5/index.shtml">Sources of Further<br/> Information</a> </td> <td><img height="15" alt="General Index" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_06_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/General_Index.shtml">General<br/> Index</a> </td> </tr> </table> <table class="tbl_prev_next" width="100%"><tr><td class="topics_pre"></td><td class="topics_nxt"><a href="Contents.shtml" title="Next">Next <img src="/web/20150817020546im_/http://ozone.unep.org/Publications/MP_Handbook/includes/arrowrt.gif" width="11" height="11" align="middle" border="0" alt="Next"/></a></td></tr></table> <h1 class="HB_title">Handbook for the <br/>Montreal Protocol <br/>on Substances that Deplete the Ozone Layer</h1> <h1 class="HB_subtitle">Seventh edition (2006)</h1> <center><a href="Contents.shtml"><img src="/web/20150817020546im_/http://ozone.unep.org/Publications/MP_Handbook/UNEP_Logo_on_the_Inside_Cover_Page.gif" alt="UNEP Logo on the Inside Cover Page" width="253" height="308" border="0"/></a></center> <p class="def"> </p> <h1 class="HB_title">Ozone Secretariat<br/>United Nations Environment Programme</h1> <p class="def">Published 2006</p> <p class="def">by the<br/>Secretariat of <br/>The Vienna Convention for the Protection of the Ozone Layer &<br/>The Montreal Protocol on Substances that Deplete the Ozone Layer</p> <p class="def">United Nations Environment Programme<br/>PO Box 30552<br/>Nairobi<br/>Kenya<br/>web site: <a href="https://web.archive.org/web/20150817020546/http://ozone.unep.org/">http://ozone.unep.org</a></p> <p class="def">email: <a href="https://web.archive.org/web/20150817020546/mailto:ozoneinfo@unep.org">ozoneinfo@unep.org</a></p> <p class="def">ISBN: 978-92-807-2770-8</p> <p class="def">Printed and bound in Kenya by UNON. Printed on recycled paper.</p> <p class="def">Cover Photo © UNEP</p> <p class="def"><i>Co-ordination:</i><br/>Ozone Secretariat, UNEP</p> <p class="def"><i>Layout and formatting:</i><br/>Duncan Brack, Consultant (<a href="https://web.archive.org/web/20150817020546/mailto:duncan@dbrack.org.uk">duncan@dbrack.org.uk</a>)</p> <p class="def"> </p> <table class="tbl_prev_next" width="100%"><tr><td class="topics_pre"></td><td class="topics_nxt"><a href="Contents.shtml" title="Next">Next <img src="/web/20150817020546im_/http://ozone.unep.org/Publications/MP_Handbook/includes/arrowrt.gif" width="11" height="11" align="middle" border="0" alt="Next"/></a></td></tr></table> <table class="sectionnav"> <tr valign="top" nowrap="nowrap"> <td class="black_bold"> Sections  </td> <td><img height="15" alt="Section One" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_01_Off.gif" width="15"/></td> <td nowrap="nowrap"><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_1_The_Montreal_Protocol/index.shtml">The Montreal<br/> Protocol</a> </td> <td><img height="15" alt="Section Two" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_02_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_2_Decisions/index.shtml">Decisions</a> </td> <td><img height="15" alt="Section Three" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_03_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_3_Annexes/index.shtml">Annexes</a> </td> <td><img height="15" alt="Section Four" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_04_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_4/index.shtml">Rules of<br/> Procedure</a> </td> <td><img height="15" alt="Section Five" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_05_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Section_5/index.shtml">Sources of Further<br/> Information</a> </td> <td><img height="15" alt="General Index" src="/web/20150817020546im_/http://ozone.unep.org/ozone/Publications/MP_Handbook/includes/Bullet_06_Off.gif" width="15"/></td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/General_Index.shtml">General<br/> Index</a> </td> </tr> </table>  <table class="sectionnav" align="center"> <tr valign="top" nowrap="nowrap"> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/index.shtml">Front Cover</a> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Foreword.shtml">Foreword</a> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Introduction.shtml">Introduction</a> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Contents.shtml">Contents</a> </td> <td><a href="/web/20150817020546/http://ozone.unep.org/ozone/Publications/MP_Handbook/Back_Cover.shtml">Back Cover</a> </td> </tr> </table> <p> </p>  </td> </tr> <tr bgcolor="#FFCC33"> <td height="20">   </td> <td colspan="3" align="right">© Ozone Secretariat 2004  </td> </tr> </table> <img src="https://web.archive.org/web/20150817020546im_/http://ozone.unep.org/includes/images/reg_acess.gif" width="1" height="1" border="0"> </body>  </body> </html>