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<channel>
	<title>NCPTT &#187; Materials Research</title>
	<atom:link href="http://www.ncptt.nps.gov/category/materials-research/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.ncptt.nps.gov</link>
	<description>National Center for Preservation Technology and Training</description>
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			<item>
		<title>PTT Grant is funding database for research of fibers</title>
		<link>http://www.ncptt.nps.gov/ptt-grant-is-funding-database-for-research-of-fibers/</link>
		<comments>http://www.ncptt.nps.gov/ptt-grant-is-funding-database-for-research-of-fibers/#comments</comments>
		<pubDate>Thu, 01 Oct 2009 20:52:43 +0000</pubDate>
		<dc:creator>jkguin</dc:creator>
				<category><![CDATA[Featured]]></category>
		<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=4499</guid>
		<description><![CDATA[Ohio State University is looking to provide ethnobotanists, archeologists and analysts with a new way to identify fibers found in prehistoric artifacts. Through a grant from NCPTT, the university is creating an online database containing digital images, explanatory text and terminology that is designed to give researchers important information about artifacts.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/ptt-grant-is-funding-database-for-research-of-fibers/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Live Webcast &#8211; Nationwide Cemetery Preservation Summit</title>
		<link>http://www.ncptt.nps.gov/live-webcast-nationwide-cemetery-preservation-summit/</link>
		<comments>http://www.ncptt.nps.gov/live-webcast-nationwide-cemetery-preservation-summit/#comments</comments>
		<pubDate>Thu, 01 Oct 2009 16:02:40 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Events]]></category>
		<category><![CDATA[Historic Landscapes]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[cemetery]]></category>
		<category><![CDATA[grave]]></category>
		<category><![CDATA[graves]]></category>
		<category><![CDATA[headstones]]></category>
		<category><![CDATA[markers]]></category>
		<category><![CDATA[Summit]]></category>
		<category><![CDATA[Training]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=4635</guid>
		<description><![CDATA[A live webcast of the Nationwide Cemetery Preservation Summit was streamed on October 19. 2009.
<br /><br />
<a href="http://www.ncptt.nps.gov/live-webcast-nationwide-cemetery-preservation-summit/" title="View the webcast">View the webcast.</a>]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/live-webcast-nationwide-cemetery-preservation-summit/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Using Eddy Current Technology in Conservation Science (Podcast Episode 8)</title>
		<link>http://www.ncptt.nps.gov/using-eddy-current-technology-in-conservation-science-podcast-episode-8/</link>
		<comments>http://www.ncptt.nps.gov/using-eddy-current-technology-in-conservation-science-podcast-episode-8/#comments</comments>
		<pubDate>Wed, 12 Aug 2009 21:21:49 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Featured]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Podcast]]></category>
		<category><![CDATA[AIC]]></category>
		<category><![CDATA[archaeology]]></category>
		<category><![CDATA[archeology]]></category>
		<category><![CDATA[Blythe McCarthy]]></category>
		<category><![CDATA[coins]]></category>
		<category><![CDATA[Collections]]></category>
		<category><![CDATA[Corrosion]]></category>
		<category><![CDATA[Curtis Desselles]]></category>
		<category><![CDATA[Eddy Current]]></category>
		<category><![CDATA[eddy currents]]></category>
		<category><![CDATA[forensics]]></category>
		<category><![CDATA[gilding]]></category>
		<category><![CDATA[gilt]]></category>
		<category><![CDATA[Gold]]></category>
		<category><![CDATA[guilding methods]]></category>
		<category><![CDATA[Hallmarks]]></category>
		<category><![CDATA[Houren Zhu]]></category>
		<category><![CDATA[Jason Church]]></category>
		<category><![CDATA[Kevin Ammons]]></category>
		<category><![CDATA[LSMSA]]></category>
		<category><![CDATA[Mary Striegel]]></category>
		<category><![CDATA[microscope]]></category>
		<category><![CDATA[Museum]]></category>
		<category><![CDATA[museums]]></category>
		<category><![CDATA[non-des]]></category>
		<category><![CDATA[Non-Destructive]]></category>
		<category><![CDATA[Non-Destructive Testing]]></category>
		<category><![CDATA[Numanistics]]></category>
		<category><![CDATA[plating]]></category>
		<category><![CDATA[Silver]]></category>
		<category><![CDATA[underwater archaeology]]></category>
		<category><![CDATA[Underwater Archeology]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3962</guid>
		<description><![CDATA[In this episode, Jason Church speaks with Curtis Deselles, an intern with the Materials Research program at NCPTT, discusses the use of eddy currents and eddy current technology in conservation science. Mr. Deselles has built several eddy current analyzers, custom software, and presented on this topic at a non-destructive conference in St. Louis.<br /><br />
NCPTT has been using eddy current technology in preservation and will be bringing this tool to the iPhone platform in 2010. <a href="http://www.ncptt.nps.gov/Podcasts/archive/Preservation-Technology-Episode-8-Eddy-Currents.mp3">Download Episode 8 as an mp3</a> or <a href="http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=285727030">subscribe via iTunes</a>.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/using-eddy-current-technology-in-conservation-science-podcast-episode-8/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>PTTGrant project to create user-powered online database for historic landscapes</title>
		<link>http://www.ncptt.nps.gov/pttgrant-whats-out-there/</link>
		<comments>http://www.ncptt.nps.gov/pttgrant-whats-out-there/#comments</comments>
		<pubDate>Mon, 03 Aug 2009 15:55:18 +0000</pubDate>
		<dc:creator>jkguin</dc:creator>
				<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[cultural]]></category>
		<category><![CDATA[historic]]></category>
		<category><![CDATA[jkguin]]></category>
		<category><![CDATA[Landscapes]]></category>
		<category><![CDATA[National Register]]></category>
		<category><![CDATA[nationalparkservice]]></category>
		<category><![CDATA[Online]]></category>
		<category><![CDATA[Preservation]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3985</guid>
		<description><![CDATA[The Cultural Landscape Foundation (TCLF) is creating a new, interactive way of preserving historic landscapes. Slated for launch in October, the PTTGrant-funded "What's Out There" project will raise awareness about the wide range and diversity of historic landscape design through a collaborative Wikipedia-style website. The site will enable users to directly contribute information, resulting in a comprehensive catalog of significant landscape designs.<br /><br /> Ultimately, the What's Out There project seeks not only to make design landscapes more visible on a national scale, but also wants to encourage original scholarship aid in future NR and NHL nominations, encourage state and local landscape inventories, generate cultural landscape reports and inspire design professionals.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/pttgrant-whats-out-there/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Improved Sol-Gel Consolidants for Stone (2002-24)</title>
		<link>http://www.ncptt.nps.gov/improved-sol-gel-consolidants-for-stone-2002-24/</link>
		<comments>http://www.ncptt.nps.gov/improved-sol-gel-consolidants-for-stone-2002-24/#comments</comments>
		<pubDate>Wed, 29 Jul 2009 20:15:01 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Product Catalog]]></category>
		<category><![CDATA[2002-24]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Consolidants]]></category>
		<category><![CDATA[George W. Scherer]]></category>
		<category><![CDATA[MT-2210-0-NC-19]]></category>
		<category><![CDATA[MT-2210-1-NC-06]]></category>
		<category><![CDATA[MT-2210-9-NC-21]]></category>
		<category><![CDATA[nanosilica]]></category>
		<category><![CDATA[particle-modified consolidant]]></category>
		<category><![CDATA[PMC]]></category>
		<category><![CDATA[Preservation]]></category>
		<category><![CDATA[Princeton University]]></category>
		<category><![CDATA[Restoration]]></category>
		<category><![CDATA[silica]]></category>
		<category><![CDATA[silicate]]></category>
		<category><![CDATA[Sol-Gel]]></category>
		<category><![CDATA[Stone]]></category>
		<category><![CDATA[weathering]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3909</guid>
		<description><![CDATA[The purpose of this project was to develop improved consolidants for restoration of stone damaged by weathering. Conventional consolidants are organic polymers or silica gels, which are simple materials that do not permit matching of a range of properties of the stone.<br /><br />Later improvement of the suspension procedure resulted in consolidants that are much more stable and fluid. Stone treated with the particle-modified consolidant (PMC) increases dramatically in stiffness and strength. Most impressively in a sodium sulfate test, the PMC provided better protection than a commercial silicate consolidant.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/improved-sol-gel-consolidants-for-stone-2002-24/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Nationwide Cemetery Preservation Summit Schedule and Abstracts</title>
		<link>http://www.ncptt.nps.gov/nationwide-cemetery-preservation-summit-schedule-and-abstracts/</link>
		<comments>http://www.ncptt.nps.gov/nationwide-cemetery-preservation-summit-schedule-and-abstracts/#comments</comments>
		<pubDate>Tue, 28 Jul 2009 18:45:48 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Events]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Abstracts]]></category>
		<category><![CDATA[archaeology]]></category>
		<category><![CDATA[archeology]]></category>
		<category><![CDATA[Cemeteries]]></category>
		<category><![CDATA[cemetery]]></category>
		<category><![CDATA[documentation]]></category>
		<category><![CDATA[Engineering]]></category>
		<category><![CDATA[Landscapes]]></category>
		<category><![CDATA[Mapping]]></category>
		<category><![CDATA[Materials Conservation]]></category>
		<category><![CDATA[national cemeteries]]></category>
		<category><![CDATA[Preservation]]></category>
		<category><![CDATA[Schedule]]></category>
		<category><![CDATA[Summit]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3863</guid>
		<description><![CDATA[Schedule and abstracts for the Nationwide Cemetery Preservation Summit from October 19-21, 2009 in Nashville, Tennessee.<br /><br />
<a href="http://www.ncptt.nps.gov/index.php/training/?regevent_action=register&#038;event_id=5">Register before September 11, 2009</a> for $299 ($399 thereafter).<br /><br />Key sessions are expected to include Archeology, Mapping and Documentation, Landscapes, Engineering Challenges, Issues in National Cemeteries, and Materials Conservation.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/nationwide-cemetery-preservation-summit-schedule-and-abstracts/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>DOD Standard Treatments</title>
		<link>http://www.ncptt.nps.gov/dod-standard-treatments/</link>
		<comments>http://www.ncptt.nps.gov/dod-standard-treatments/#comments</comments>
		<pubDate>Mon, 27 Jul 2009 12:59:25 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Architecture & Engineering]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[cultural resources]]></category>
		<category><![CDATA[DoD]]></category>
		<category><![CDATA[DOD treatment standards]]></category>
		<category><![CDATA[draft]]></category>
		<category><![CDATA[Standard Treatments]]></category>
		<category><![CDATA[stewardship]]></category>
		<category><![CDATA[treatment standards]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3838</guid>
		<description><![CDATA[NCPTT has completed the rewriting and editing of 12 Standard Treatments for the DOD.<br /><br />Sixteen additional treatments are under review, and DOD comments will be incorporated as they are received.<br /><br />This effort is directed at improving the technical content of the draft DOD treatment standards and the stewardship of DOD cultural resources.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/dod-standard-treatments/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>NSF Workshop</title>
		<link>http://www.ncptt.nps.gov/nsf-workshop/</link>
		<comments>http://www.ncptt.nps.gov/nsf-workshop/#comments</comments>
		<pubDate>Tue, 21 Jul 2009 14:15:44 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Andrew Mellon Foundation]]></category>
		<category><![CDATA[Arlington]]></category>
		<category><![CDATA[Freer Gallery]]></category>
		<category><![CDATA[Mary Striegel]]></category>
		<category><![CDATA[National Science Foundation]]></category>
		<category><![CDATA[Smithsonian]]></category>
		<category><![CDATA[VA]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3846</guid>
		<description><![CDATA[NCPTT’s Mary Striegel participated in a National Science Foundation/Andrew Mellon Foundation workshop held to examine and improve the state of science used to study, preserve and protect cultural patrimony.<br /><br />Forty participants met to identify areas where new research in basic science can provide a foundation for significant improvements in understanding the way art and artifacts were created and how best to preserve them.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/nsf-workshop/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Using Lasers to Remove Graffiti from Rock Art and Rock Imagery (Podcast Episode 7)</title>
		<link>http://www.ncptt.nps.gov/using-lasers-to-remove-graffiti-from-rock-art-and-rock-imagerypodcast-episode-7/</link>
		<comments>http://www.ncptt.nps.gov/using-lasers-to-remove-graffiti-from-rock-art-and-rock-imagerypodcast-episode-7/#comments</comments>
		<pubDate>Thu, 16 Jul 2009 16:40:46 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Featured]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Podcast]]></category>
		<category><![CDATA[chemical cleaners]]></category>
		<category><![CDATA[chemical treatments]]></category>
		<category><![CDATA[Claire Dean]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[Conservation Services]]></category>
		<category><![CDATA[Dean Associates]]></category>
		<category><![CDATA[Environmental Conservation]]></category>
		<category><![CDATA[Environmentally Friendly]]></category>
		<category><![CDATA[Jan Keswick]]></category>
		<category><![CDATA[Jason Church]]></category>
		<category><![CDATA[Joshua Tree]]></category>
		<category><![CDATA[Kevin Ammons]]></category>
		<category><![CDATA[laser]]></category>
		<category><![CDATA[Laser Cleaning]]></category>
		<category><![CDATA[microabrasion]]></category>
		<category><![CDATA[native american]]></category>
		<category><![CDATA[NCPTT]]></category>
		<category><![CDATA[petroglyph]]></category>
		<category><![CDATA[pictograph]]></category>
		<category><![CDATA[Preservation]]></category>
		<category><![CDATA[PTT Grant]]></category>
		<category><![CDATA[Rock Art]]></category>
		<category><![CDATA[rock image]]></category>
		<category><![CDATA[Umatilla]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3801</guid>
		<description><![CDATA[Today we are joining NCPTT's Jason Church as he speaks with Claire Dean of Dean Associates of Conservation Services about using lasers to remove graffiti from rock art. Rock art or rock imagery is the common term for paintings and carvings on rock and in North America that is mostly associated with native communities.<br /><br /><a href="http://www.ncptt.nps.gov/podcasts/archive/Preservation-Technology-Episode-7-Claire-Dean.mp3">Download Episode 7 as an mp3</a> or <a href="http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=285727030">subscribe via iTunes</a>.
]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/using-lasers-to-remove-graffiti-from-rock-art-and-rock-imagerypodcast-episode-7/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Evaluation of Conservation and Preservation Practices in a Southwest Pottery Collection (2009-04)</title>
		<link>http://www.ncptt.nps.gov/evaluation-of-conservation-and-preservation-practices-in-a-southwest-pottery-collection-2009-04/</link>
		<comments>http://www.ncptt.nps.gov/evaluation-of-conservation-and-preservation-practices-in-a-southwest-pottery-collection-2009-04/#comments</comments>
		<pubDate>Thu, 16 Jul 2009 16:11:37 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Archeology & Collections]]></category>
		<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Product Catalog]]></category>
		<category><![CDATA[2009-04]]></category>
		<category><![CDATA[adhesive]]></category>
		<category><![CDATA[archaeology]]></category>
		<category><![CDATA[archeology]]></category>
		<category><![CDATA[ceramic]]></category>
		<category><![CDATA[collection]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[evaluation]]></category>
		<category><![CDATA[Fourier Transform]]></category>
		<category><![CDATA[FTIR]]></category>
		<category><![CDATA[Infrared]]></category>
		<category><![CDATA[monitoring]]></category>
		<category><![CDATA[Museum]]></category>
		<category><![CDATA[pottery]]></category>
		<category><![CDATA[preservation treatments]]></category>
		<category><![CDATA[PTT Grant]]></category>
		<category><![CDATA[Repair]]></category>
		<category><![CDATA[southwestern pottery]]></category>
		<category><![CDATA[Spectroscopy]]></category>
		<category><![CDATA[storage facility]]></category>
		<category><![CDATA[vessels]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3807</guid>
		<description><![CDATA[A variety of materials and methods have been used to preserve ceramic vessels.  Many have proven successful, while others are damaging.  Monitoring and evaluation of past treatments is a documented research priority in the conservation field.  The Arizona State Museum (ASM) has examined, recorded and analyzed the performance of past treatments on 20,000 southwest vessels and a modern storage facility.<br /><br />This research has afforded the opportunity to look forwards and backwards to identify patterns in archaeological methods, museum management and conservation.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/evaluation-of-conservation-and-preservation-practices-in-a-southwest-pottery-collection-2009-04/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Sourcing Shell and Shell-Tempered Artifacts Using Laser Ablation (2009-02)</title>
		<link>http://www.ncptt.nps.gov/sourcing-shell-and-shell-tempered-artifacts-using-laser-ablation-2009-02/</link>
		<comments>http://www.ncptt.nps.gov/sourcing-shell-and-shell-tempered-artifacts-using-laser-ablation-2009-02/#comments</comments>
		<pubDate>Fri, 10 Jul 2009 18:41:24 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Archeology & Collections]]></category>
		<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Product Catalog]]></category>
		<category><![CDATA[2009-02]]></category>
		<category><![CDATA[archaeology]]></category>
		<category><![CDATA[archeology]]></category>
		<category><![CDATA[artifacts]]></category>
		<category><![CDATA[Collections]]></category>
		<category><![CDATA[freshwater]]></category>
		<category><![CDATA[LA-ICP-MS]]></category>
		<category><![CDATA[laser ablation]]></category>
		<category><![CDATA[MT-2210-07-NC-08]]></category>
		<category><![CDATA[mussels]]></category>
		<category><![CDATA[native american]]></category>
		<category><![CDATA[non-]]></category>
		<category><![CDATA[Non-Destructive]]></category>
		<category><![CDATA[plasma mass spectrometry]]></category>
		<category><![CDATA[pottery]]></category>
		<category><![CDATA[ptt]]></category>
		<category><![CDATA[PTT Grant]]></category>
		<category><![CDATA[ptt grants]]></category>
		<category><![CDATA[Shell]]></category>
		<category><![CDATA[shell-tempered]]></category>
		<category><![CDATA[shells]]></category>
		<category><![CDATA[Sourcing Shell]]></category>
		<category><![CDATA[waterway]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3716</guid>
		<description><![CDATA[This project involved developing a new method for using the chemical content of freshwater mussel shell as a means of sourcing prehistoric, shell-tempered pottery and shell artifacts to their places of origin.  By extension, this means that prehistoric trade and exchange networks can be mapped out.<br /><br />Because each waterway is chemically different to some extent, and because mussels incorporate the chemicals into their shells, it is theoretically possible to identify where shell artifacts or shell-tempered pottery was made by chemically analyzing the shell.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/sourcing-shell-and-shell-tempered-artifacts-using-laser-ablation-2009-02/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Removal of Arsenic and Mercury Contamination in Museums using a Natural Environmentally Benign Chemical (2006-02)</title>
		<link>http://www.ncptt.nps.gov/removal-of-arsenic-and-mercury-contamination-in-museums-using-a-natural-environmentally-benign-chemical-2006-02/</link>
		<comments>http://www.ncptt.nps.gov/removal-of-arsenic-and-mercury-contamination-in-museums-using-a-natural-environmentally-benign-chemical-2006-02/#comments</comments>
		<pubDate>Wed, 08 Jul 2009 17:03:48 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Archeology & Collections]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Product Catalog]]></category>
		<category><![CDATA[2006-02]]></category>
		<category><![CDATA[arsenic]]></category>
		<category><![CDATA[benign]]></category>
		<category><![CDATA[chemi]]></category>
		<category><![CDATA[chemistry]]></category>
		<category><![CDATA[Cleaning]]></category>
		<category><![CDATA[contamination]]></category>
		<category><![CDATA[mercury]]></category>
		<category><![CDATA[MT-2210-05-NC-06]]></category>
		<category><![CDATA[museums]]></category>
		<category><![CDATA[natural]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3700</guid>
		<description><![CDATA[Some natural science specimens and ethnographic artifacts in museums were historically treated with arsenic and mercury salts. This has created an environmental concern for museum workers and the public who may be exposed to these toxins. In addition, museums are frequently being asked to return sacred objects under the Native American Graves Protection and Repatriation Act (NAGPRA).]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/removal-of-arsenic-and-mercury-contamination-in-museums-using-a-natural-environmentally-benign-chemical-2006-02/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>The Aftershock of Economics Meets Conservation Online</title>
		<link>http://www.ncptt.nps.gov/the-aftershock-of-economics-meets-conservation-online/</link>
		<comments>http://www.ncptt.nps.gov/the-aftershock-of-economics-meets-conservation-online/#comments</comments>
		<pubDate>Mon, 15 Jun 2009 16:01:19 +0000</pubDate>
		<dc:creator>Mary Striegel</dc:creator>
				<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[NCPTT Blog]]></category>
		<category><![CDATA[AIC]]></category>
		<category><![CDATA[AIC Wiki]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[conservation online]]></category>
		<category><![CDATA[CoOL]]></category>
		<category><![CDATA[PTT Grant]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=3431</guid>
		<description><![CDATA[When the use of the internet for communication is exploding exponentially, the economics of California and Stanford University has brought an end to the Conservation Online DistList and Archives (CoOL). ]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/the-aftershock-of-economics-meets-conservation-online/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Swelling Mechanism in Clay-Bearing Sandstones (2007-09)</title>
		<link>http://www.ncptt.nps.gov/swelling-mechanism-in-clay-bearing-sandstones-2007-09/</link>
		<comments>http://www.ncptt.nps.gov/swelling-mechanism-in-clay-bearing-sandstones-2007-09/#comments</comments>
		<pubDate>Wed, 15 Apr 2009 18:59:06 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Grants]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Product Catalog]]></category>
		<category><![CDATA[2007-09]]></category>
		<category><![CDATA[Brownstone]]></category>
		<category><![CDATA[Clay]]></category>
		<category><![CDATA[PTT Grant]]></category>
		<category><![CDATA[Sandstone]]></category>
		<category><![CDATA[Swelling]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=1030</guid>
		<description><![CDATA[Swelling clays in stone can generate damaging stresses during a wetting or a drying cycle, which leads to deterioration of building stones such as Portland Brownstone.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/swelling-mechanism-in-clay-bearing-sandstones-2007-09/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Shaving Cream: Genealogist&#8217;s Friend or Cemetery Conservator&#8217;s Foe?</title>
		<link>http://www.ncptt.nps.gov/shaving-creamgenealogists-friend-or-cemetery-conservators-foe/</link>
		<comments>http://www.ncptt.nps.gov/shaving-creamgenealogists-friend-or-cemetery-conservators-foe/#comments</comments>
		<pubDate>Thu, 09 Apr 2009 15:49:18 +0000</pubDate>
		<dc:creator>Jason Church</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[NCPTT Blog]]></category>
		<category><![CDATA[cemetery conservation]]></category>
		<category><![CDATA[Cemetery Preservation]]></category>
		<category><![CDATA[Cemetery Preservation FAQ]]></category>
		<category><![CDATA[headstones]]></category>
		<category><![CDATA[shaving cream]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=2928</guid>
		<description><![CDATA[We do not advocate the use of shaving cream for investigating inscriptions on stone. The shaving cream has natural emollients for softening the skin. These emollients have oils and moisture holding agents that can have detrimental effects on the stone.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/shaving-creamgenealogists-friend-or-cemetery-conservators-foe/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>NCPTT visits Hybrid Plastics</title>
		<link>http://www.ncptt.nps.gov/ncptt-visits-hybrid-plastics/</link>
		<comments>http://www.ncptt.nps.gov/ncptt-visits-hybrid-plastics/#comments</comments>
		<pubDate>Tue, 07 Apr 2009 13:21:11 +0000</pubDate>
		<dc:creator>Jason Church</dc:creator>
				<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Hybrid Plastics]]></category>
		<category><![CDATA[MRP]]></category>
		<category><![CDATA[POSS]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=2906</guid>
		<description><![CDATA[NCPTT and Hybrid Plastics are partnering to make and use POSS modified polymers in preservation applications. Researchers and preservationists discussed the potential of developing new nanotechnologies for application to preservation problems.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/ncptt-visits-hybrid-plastics/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Deadline: Call for Presentations for the Nationwide Cemetery Preservation Summit</title>
		<link>http://www.ncptt.nps.gov/call-for-presentations/</link>
		<comments>http://www.ncptt.nps.gov/call-for-presentations/#comments</comments>
		<pubDate>Tue, 31 Mar 2009 18:54:31 +0000</pubDate>
		<dc:creator>Jason Church</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Events]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Training]]></category>
		<category><![CDATA[Cemeteries]]></category>
		<category><![CDATA[cemetery]]></category>
		<category><![CDATA[Cemetery Preservation Summit]]></category>
		<category><![CDATA[Cleaning]]></category>
		<category><![CDATA[Conservation]]></category>
		<category><![CDATA[graveyards]]></category>
		<category><![CDATA[hands-on]]></category>
		<category><![CDATA[headstones]]></category>
		<category><![CDATA[historic vegetation]]></category>
		<category><![CDATA[Monument]]></category>
		<category><![CDATA[monuments]]></category>
		<category><![CDATA[National Cemetery Administration]]></category>
		<category><![CDATA[Preservation]]></category>
		<category><![CDATA[Stone]]></category>
		<category><![CDATA[unmarked graves]]></category>
		<category><![CDATA[Workshop]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=2789</guid>
		<description><![CDATA[NCPTT is soliciting oral and poster presentations that focus on research and innovation in cemetery conservation and preservation for the NCPTT’s Nationwide Cemetery Preservation Summit to be held in Nashville, Tenn., October 19-21, 2009.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/call-for-presentations/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Essentials for Cemetery Monument Care TelNPS</title>
		<link>http://www.ncptt.nps.gov/essentials-for-cemetery-monument-care-telnps/</link>
		<comments>http://www.ncptt.nps.gov/essentials-for-cemetery-monument-care-telnps/#comments</comments>
		<pubDate>Mon, 09 Mar 2009 14:01:12 +0000</pubDate>
		<dc:creator>Jason Church</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Events]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Training]]></category>
		<category><![CDATA[care]]></category>
		<category><![CDATA[cemetery]]></category>
		<category><![CDATA[Monument]]></category>
		<category><![CDATA[NPS-HPS1022]]></category>
		<category><![CDATA[TelNPS]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=1983</guid>
		<description><![CDATA[This course emphasizes sound maintenance techniques for cemetery and commemorative monuments that are sustainable, cyclic, non-invasive, and do no harm. The course will address documentation, maintenance plans, stone deterioration, cleaning, and resetting headstones.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/essentials-for-cemetery-monument-care-telnps/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Basics for Iron Fencing Care TelNPS</title>
		<link>http://www.ncptt.nps.gov/basics-for-iron-fencing-care/</link>
		<comments>http://www.ncptt.nps.gov/basics-for-iron-fencing-care/#comments</comments>
		<pubDate>Mon, 09 Mar 2009 14:01:03 +0000</pubDate>
		<dc:creator>Jason Church</dc:creator>
				<category><![CDATA[Cemetery Conservation]]></category>
		<category><![CDATA[Events]]></category>
		<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[Training]]></category>
		<category><![CDATA[Basics]]></category>
		<category><![CDATA[care]]></category>
		<category><![CDATA[Iron Fence]]></category>
		<category><![CDATA[NCPTT]]></category>
		<category><![CDATA[NPS-HPS1201]]></category>
		<category><![CDATA[TelNPS]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=1991</guid>
		<description><![CDATA[This course emphasizes sound maintenance technqiues for historic iron fences. These resources could be located around cemetery markers, commemorative monuments, or architectural features.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/basics-for-iron-fencing-care/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Mary Striegel to Keynote at American Society for Non-Destructive Testing</title>
		<link>http://www.ncptt.nps.gov/mary-striegel-to-keynote-at-american-society-for-non-destructive-testing/</link>
		<comments>http://www.ncptt.nps.gov/mary-striegel-to-keynote-at-american-society-for-non-destructive-testing/#comments</comments>
		<pubDate>Tue, 03 Mar 2009 14:00:53 +0000</pubDate>
		<dc:creator>NCPTT</dc:creator>
				<category><![CDATA[Materials Research]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Mary Striegel]]></category>
		<category><![CDATA[Non-Destructive]]></category>
		<category><![CDATA[Nondestructive Testing]]></category>
		<category><![CDATA[Testing]]></category>

		<guid isPermaLink="false">http://www.ncptt.nps.gov/?p=2524</guid>
		<description><![CDATA[Mary Striegel will be the keynote speaker at the annual meeting of the American Society for Non-destructive Testing, to be held March 17 in St. Louis, Mo.]]></description>
		<wfw:commentRss>http://www.ncptt.nps.gov/mary-striegel-to-keynote-at-american-society-for-non-destructive-testing/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
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