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	<title>Particle Counter Blog &#187; Ask the Experts</title>
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	<description>A blog dedicated to particle counters with information about particle counter technology, applications, cleanrooms and related topics.</description>
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		<title>ISO 14644 Cleanroom Validating to ISO Class 8</title>
		<link>http://www.particlecounters.org/blog/iso-14644-cleanroom-validating-to-iso-class-8/</link>
		<comments>http://www.particlecounters.org/blog/iso-14644-cleanroom-validating-to-iso-class-8/#comments</comments>
		<pubDate>Tue, 13 Jun 2006 15:14:00 +0000</pubDate>
		<dc:creator>Rod</dc:creator>
				<category><![CDATA[Ask the Experts]]></category>
		<category><![CDATA[Clean Room Particle Counter]]></category>

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		<description><![CDATA[&#60;a href=&#8221;/adpeeps/adpeeps.php?bfunction=clickad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; mce_href=&#8221;http://www.particlecounters.org/adpeeps/adpeeps.php?bfunction=clickad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; target=&#8221;_blank&#8221;&#62;&#38;lt;img src=&#8221;/adpeeps/adpeeps.php?bfunction=showad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; width=&#8221;125&#8243; height=&#8221;125&#8243; alt=&#8221;Click Here!&#8221; border=0&#38;gt;&#38;lt;/a&#38;gt;
I recently had a customer ask us some questions about certifying and testing two cleanzone tents in which he wants to validate to ISO 14644 class 8. As he did not have prior experience validating to ISO 14644 standards, he purchased the ISO 14644-1 and ISO [...]]]></description>
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		<slash:comments>22</slash:comments>
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		<title>Particle Counter Counting Efficiency</title>
		<link>http://www.particlecounters.org/blog/particle-counter-counting-efficiency/</link>
		<comments>http://www.particlecounters.org/blog/particle-counter-counting-efficiency/#comments</comments>
		<pubDate>Tue, 11 Apr 2006 14:27:11 +0000</pubDate>
		<dc:creator>Rod</dc:creator>
				<category><![CDATA[Ask the Experts]]></category>

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		<description><![CDATA[I recently spoke with a woman named Becky from 3M who had a lot of questions about the Lighthouse 3016 handheld particle counter. She is looking for a particle counter that can count particles from .3 microns up to 25 microns. I explained that the Lighthouse 3016 could be upgraded to include the 25 micron [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Ask The Experts</title>
		<link>http://www.particlecounters.org/blog/ask-the-experts/</link>
		<comments>http://www.particlecounters.org/blog/ask-the-experts/#comments</comments>
		<pubDate>Sat, 25 Mar 2006 22:55:06 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Ask the Experts]]></category>

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		<description><![CDATA[ &#60;a href=&#8221;/adpeeps/adpeeps.php?bfunction=clickad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; mce_href=&#8221;http://www.particlecounters.org/adpeeps/adpeeps.php?bfunction=clickad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; target=&#8221;_blank&#8221;&#62;&#38;lt;img src=&#8221;/adpeeps/adpeeps.php?bfunction=showad&#38;amp;uid=100000&#38;amp;bmode=off&#38;amp;bzone=midpost&#38;amp;bsize=125&#215;125&#38;amp;btype=1&#38;amp;bpos=default&#38;amp;ver=2.0&#8243; width=&#8221;125&#8243; height=&#8221;125&#8243; alt=&#8221;Click Here!&#8221; border=0&#38;gt;&#38;lt;/a&#38;gt;
I was speaking with Jack, a gentleman from Florida, who was asking me about how to convert particle counts to particle mass (ug/m3). He had also asked if there were guidlines for particle limits in residential settings. He has posted his question in the comments [...]]]></description>
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		<slash:comments>7</slash:comments>
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		<title>How do Particle Counters Work?</title>
		<link>http://www.particlecounters.org/blog/how-do-particle-counters-work/</link>
		<comments>http://www.particlecounters.org/blog/how-do-particle-counters-work/#comments</comments>
		<pubDate>Fri, 03 Mar 2006 16:04:15 +0000</pubDate>
		<dc:creator>Rod</dc:creator>
				<category><![CDATA[Ask the Experts]]></category>

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		<description><![CDATA[Every week or so I speak with a customer who asks this question.
Laser particle counters work on the principal of light scattering or light blocking. The air enters through an isokinetic sampling probe and through a chamber inside of the particle counter. A Laser beem illuminates the particles and light is redirected or absorbed. Light [...]]]></description>
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		<slash:comments>1</slash:comments>
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