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<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">Ron</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">By end of flame the color of the char
is red to yellow, that indicate a temperature of 700 to 800 ˚C and when there is
no smoke, complete combustion has taken place. Is that not good for
biochar?</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 10pt; LINE-HEIGHT: 13pt"><SPAN
lang=EN-US><FONT style="FONT-SIZE: 11pt">Regards Paal
W</FONT></SPAN></P></DIV></DIV></BODY></HTML>