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	<title>Labthink Gas Permeability Tester Manufacturer &#187; permeation</title>
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	<link>http://www.gas-transmission-rate.com</link>
	<description>Gas Transmission Rate Tester is applicable for gas transmission rate test of films, sheets, high barrier materials and foil, etc.</description>
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		<title>GTR and OTR</title>
		<link>http://www.gas-transmission-rate.com/gtr-and-otr.html</link>
		<comments>http://www.gas-transmission-rate.com/gtr-and-otr.html#comments</comments>
		<pubDate>Tue, 19 Nov 2013 05:58:51 +0000</pubDate>
		<dc:creator>trade</dc:creator>
				<category><![CDATA[Articles]]></category>
		<category><![CDATA[GTR]]></category>
		<category><![CDATA[OTR]]></category>
		<category><![CDATA[permeation]]></category>
		<category><![CDATA[transmission]]></category>

		<guid isPermaLink="false">http://www.gas-transmission-rate.com/?p=91</guid>
		<description><![CDATA[GTR, gas transmission rate, is the rate at which a specified gas permeates through a stated area of a specimen under certain time period, pressure and temperature condition.  OTR, oxygen transmission rate is the rate at which oxygen transmits through a stated area of a specimen under certain time period. The above mentioned transmission can [...]]]></description>
			<content:encoded><![CDATA[<p><strong>GTR</strong>, gas transmission rate, is the rate at which a specified gas permeates through a stated area of a specimen under certain time period, pressure and temperature condition.  <strong>OTR</strong>, oxygen transmission rate is the rate at which oxygen transmits through a stated area of a specimen under certain time period. The above mentioned transmission can also be expressed as permeation or permeability. For more information, please visit <a href="http://www.labthink.cn/">www.labthinkinternational.com.cn</a>.</p>
<p>The testing subjects of GTR and OTR are mainly plastic films and sheets, such as plastic films, laminated films, high barrier materials, back sheets, construction thermal insulation and water proof materials, battery diaphragms as well as packaging bottle and pouch containers, etc.</p>
<p>The measurement of GTR and OTR is of great significance. As to food and pharmaceutical products, the barrier performance of the packaging materials would directly influence the quality and shelf-life of the contents. Through GTR and OTR measurement, the specific gas permeation/barrier performance of certain packaging material can be learnt, so as to help improve packaging material selection and confirm perfect protection for products during production, transportation, storage and shelf-life period. Thus, greatly reduce costs and improve product quality.</p>
<p>GTR and OTR are measured by<a title="Gas/oxygen transmission rate analyzer" href="http://www.labthinkinternational.com.cn/products/test-property/gas-permeability-test.html" target="_blank"> gas/oxygen transmission analyzer</a>. Labthink Instruments, as the world leading permeability/barrier tester researcher and manufacturer, devotes to the permeation method research and instrument development. Labthink PERME series of testing instruments have complete permeation solutions for gas, water vapor and organic gas. The new innovative Labthink PERME DM2/330 Differential and Equal Pressure Method <a title="gas permeability tester" href="http://www.labthinkinternational.com.cn/product/dm2-330-differential-and-equal-pressure-method-gas-permeability-tester.html" target="_blank">Gas Permeability Tester</a> can measure the gas transmission rate of plastic film, sheets and containers with differential pressure method and equal pressure method, the two recognized methods.</p>
<p><strong>About Labthink:</strong></p>
<p>Labthink, the excellent provider of testing instruments and testing services, is devoted to provide most excellent and complete quality control solutions for pharmaceutical, foodstuff, cosmetics, packaging, printing, adhesive, automotive, petrochemistry, environment, biology, new energy, construction, aviation and electronic industries worldwide.</p>
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		<title>Gas Permeation Tester(ASTM D1434)</title>
		<link>http://www.gas-transmission-rate.com/gas-permeation-tester.html</link>
		<comments>http://www.gas-transmission-rate.com/gas-permeation-tester.html#comments</comments>
		<pubDate>Wed, 23 Feb 2011 09:15:39 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[News & Notice]]></category>
		<category><![CDATA[Gas Permeation Tester]]></category>
		<category><![CDATA[permeation]]></category>
		<category><![CDATA[quality control]]></category>

		<guid isPermaLink="false">http://www.gas-transmission-rate.com/?p=39</guid>
		<description><![CDATA[Gas Permeation Tester is applicable in the measurement of gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, high barrier material, sheets, foils and rubber, including breathable film and tyre seal performance, etc. Gas Permeation Tester conforms to ASTM D 1434, ISO 2556, ISO 15105-1, JIS [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Gas Permeation Tester</strong> is applicable in<em> the measurement of gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, high barrier material, sheets, foils and rubber, including breathable film and tyre seal performance, etc.</em></p>
<p><strong>Gas Permeation Tester</strong> conforms to<span style="text-decoration: underline;"> </span><span style="text-decoration: underline;">ASTM D 1434, ISO 2556, ISO 15105-1, JIS K 7126-A</span></p>
<p><strong>Features:</strong></p>
<p>1. <em>Manometric testing method</em>; Computer control, full automatic testing;</p>
<p>2. Diffusion coefficient, solubility coefficient and permeability coefficient measurement.</p>
<p>Measure range can be extended by software.</p>
<p>3. <em>Data curvefitting function</em> at any temperatures;</p>
<p>4. Can be extended to cover the tests for poisonous and explosive gases;</p>
<p>5. Rapid calibration with reference film;</p>
<p><strong>Technical data:</strong></p>
<p>Test Range: 0.1~100,000 cm<sup>3</sup>/m<sup>2</sup>/24h/0.1MPa (Routine)</p>
<p>Upper limit is no less than 600,000 cm<sup>3</sup>/m<sup>2</sup>/24h/0.1MPa (Extension volume)</p>
<p>Note: Different mode volume are selected by software.</p>
<p>Temperature Control Range: room temperature ~ 50°C</p>
<p>Temperature accuracy: ±0.1℃</p>
<p>Vacuum Resolution: 0.1Pa</p>
<p>Vacuum Degree of testing chamber: &lt;20Pa</p>
<p>Test Gas: O<sub>2</sub>, N<sub>2</sub> and CO<sub>2</sub>, etc. (Users provide gas sources themselves)</p>
<p>Test Pressure: -0.1MPa~+0.1MPa</p>
<p>For more information, please feel free to leave us message.</p>
<p><strong> </strong></p>
<p><strong>Related products:</strong></p>
<p>PERME<sup>TM</sup> VAC-VBS Gas Permeation Instrument</p>
<p>PERME<sup>TM</sup> VAC-V3 Gas Transmission Rate Instrument</p>
<p>PERME<sup>TM</sup> VAC-V2 Gas Permeability Tester</p>
<p>PERME<sup>TM</sup> W3/330 Water Vapor Permeation Test System</p>
<p>PERME<sup>TM</sup> OX2/230 Oxygen Permeation Test System</p>
<p>More about<a href="http://www.labthink.cn/en"> Labthink:</a></p>
<p>Labthink provides excellent testing equipments and services for Labs, quality and safety control of polymer materials, such as flexible packaging, pharmaceuticals, foodstuff, cosmetics packaging, printing, adhesive, automotive, petroleum chemistry, environment, biology, new energy, construction, astronautics and electronics.</p>
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