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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Dear Kirk<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">You could analyse the test from a conceptual viewpoint first to assess whether or not it answers the questions you are asking.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">In the current document there is a wide range of suggested activities. The problem with the text as a whole is that although it encourages testers to do things that are ‘contextual’ it claims that
to make a comparison with other stove tests in other places or labs, the ‘standard test’ should be conducted. As the standard test (fixed fuel, standard pot, fixed test sequence, set water mass) does not have contextual relevance, the result is not relevant.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">The fact that there are numerous errors both conceptually and mathematically in the experiment one conducts to perform the WBT assessment leaves little room for doubt that no WBT result should be
trusted for assessment, comparison, regulation or to advise policy. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">All test protocols will contain some instruction about equipment. In a typical one there is a specified accuracy and precision of each measurement. The range of the instrument can then be selected
which meets that requirement. Such a specification is not made in abstract, it is based on a plan to have, at the end, an answer with an acceptable uncertainty. That part is missing from the WBT because it is not a well-written protocol. It doesn’t have a
target ‘performance’ as a test method. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Surprisingly, and unusually for this sector, the IWA does have such a performance requirement of the testing system. It is very difficult to meet. To date I think no one’s system has met the target
in all respects. The system mentioned by Norbert, the Condar plus gas analysers at BNL on Long Island, does meet the requirements, but is not an EPA total capture dilution system and thus is not permitted under the forthcoming ISO lab test method. Norbert
showed that the Condar system has 1/5<sup>th</sup> of the uncertainty of the top of the line EPA system (Method 5G) and also meets the IWA (not that he was looking for it).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">The WBT has many failings we can learn from through discussion and analysis. Accuracy, repeatability, math, stats and relevance are just some of its shortcomings. Time to retire it.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Crispin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Stoves [mailto:stoves-bounces@lists.bioenergylists.org]
<b>On Behalf Of </b>Ronal W. Larson<br>
<b>Sent:</b> 22-Dec-17 06:36<br>
<b>To:</b> Discussion of biomass <stoves@lists.bioenergylists.org>; Kirk H. <gkharris316@comcast.net><br>
<b>Subject:</b> Re: [Stoves] WBT controversy<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Kirk and list:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span class="apple-tab-span"> </span>I disagree with you. I ask the opponents to the WBT (any part) to give us an alternative. To me, what I see coming through the TC-285 process has wide approval - and should be celebrated
for that.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Ron<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Dec 21, 2017, at 11:18 AM, Kirk H. <<a href="mailto:gkharris316@comcast.net">gkharris316@comcast.net</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Perhaps my confusion and need for my previous question could have been averted if instead of calling the test the Water Boiling Test (WBT), which seems to refer to the whole test, it be called the Water Boiling Portion of the Test (WBP
or WBPT). Then it would be very clear that not all of the overall test (including sensors and filters) is in dispute. Only the WBP needs to be addressed. This makes the problem much less daunting, and I could be much more sympathetic toward a change. When
it sounded like the disagreement was with everything from beginning to end, I was not sympathetic.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Kirk H.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Sent from<span class="apple-converted-space"> </span><a href="https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgo.microsoft.com%2Ffwlink%2F%3FLinkId%3D550986&data=02%7C01%7C%7Cd18fa75caf854705413908d548d44fd3%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636494999058662588&sdata=cfnTzNdgUIgDmrixH5KEH8jH1LI63knMSLw%2FWlhk41Q%3D&reserved=0"><span style="color:#954F72">Mail</span></a><span class="apple-converted-space"> </span>for
Windows 10<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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