{"id":8874,"date":"2026-10-20T11:54:07","date_gmt":"2026-10-20T09:54:07","guid":{"rendered":"https:\/\/www.perfectsamplegas.de\/?p=8874"},"modified":"2026-10-20T12:26:53","modified_gmt":"2026-10-20T10:26:53","slug":"co-free-heated-sample-line-perfectzero","status":"publish","type":"post","link":"https:\/\/www.perfectsamplegas.de\/en\/co-free-heated-sample-line-perfectzero\/","title":{"rendered":"Every ppm counts: how PerfectZero prevents CO ingress in heated sample lines"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-background-position:left center;--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-bottom:40px;--awb-padding-top-medium:80px;--awb-padding-top-small:40px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-content-wrap\" style=\"max-width:1289.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1 kleiner\" style=\"--awb-font-size:20px;--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>Precise emission measurements do not start at the analyzer \u2013 the path of the sample gas can already be decisive. With low CO measuring ranges, the heated sample line itself can become a source of interference, precisely when it is operated as hot as it should be. With the new TBX-H PerfectZero, AGT-PSG introduces a heated sample line that prevents exactly this effect.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:var(--awb-typography1-line-height);\">Why sample lines are operated hot<\/h2><\/div><div class=\"fusion-text fusion-text-2\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>The sample gas must stay above its water and acid dew point all the way from the sampling point to the sample gas conditioning system. This is the only way to avoid uncontrolled condensation, acid formation and the loss of water-soluble components. Holding temperatures of 180 \u00b0C are therefore common in continuous emission monitoring systems (CEMS): in sulfur-containing flue gases, the acid dew point can reach approximately 150 to 155 \u00b0C, depending on gas composition, moisture and SO\u2083 content.<\/p>\n<p>PTFE has proven itself as the material for the sample gas path. It offers excellent chemical resistance, is hydrophobic and shows very little surface interaction \u2013 an advantage for low measuring ranges and demanding components such as NH\u2083, HCl or SO\u2082.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">Where the CO comes from<\/h3><\/div><div class=\"fusion-text fusion-text-3\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>At high continuous operating temperatures, the heater, the insulation and other line materials can release CO. Although PTFE is an excellent material for sample gas service, it is not completely gas diffusion-tight. As temperature increases, gases can permeate through the PTFE wall and enter the sample gas stream.<\/p>\n<p>At holding temperatures of 180 or 200 \u00b0C, this effect can create an additional background signal in low CO measuring ranges and distort the measured value. For operators this means: part of the measured CO does not come from the process but from their own sample line.<\/p>\n<\/div><div class=\"fusion-image-element\" style=\"text-align:center;--awb-max-width:80%;--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1536\" height=\"1024\" alt=\"CO-free TBX-H PerfectZero measurement gas line with a layered structure\" src=\"https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2.png\" class=\"img-responsive wp-image-8867\" srcset=\"https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2-200x133.png 200w, https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2-400x267.png 400w, https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2-600x400.png 600w, https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2-800x533.png 800w, https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2-1200x800.png 1200w, https:\/\/www.perfectsamplegas.de\/wp-content\/uploads\/2026\/10\/TBX-H-Perfect-Zero-2.png 1536w\" sizes=\"(max-width: 800px) 100vw, 1536px\" \/><\/span><\/div><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">The solution: a stainless steel barrier<\/h3><\/div><div class=\"fusion-text fusion-text-4\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>This is exactly where PerfectZero comes in. A flexible metallic diffusion barrier \u2013 a stainless steel corrugated tube \u2013 surrounds the PTFE or PFA sample tube and fully separates it from the heater and the insulation. The sample gas stream thus stays free of CO ingress from the line, even at holding temperatures of up to 200 \u00b0C (60 W\/m heater).<\/p>\n<\/div><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">How to detect a CO background from the line<\/h3><\/div><div class=\"fusion-text fusion-text-5\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>A simple comparison shows whether your sample line contributes to the CO reading: apply zero gas once directly at the analyzer and once through the probe\u2019s test gas connection \u2013 standard on PSG probes \u2013 while probe and line are at operating temperature. If the analyzer shows more CO when the zero gas passes through the entire sample path, the difference comes from the sample path and not from the process. Especially with low CO measuring ranges, this comparison is worthwhile before the next calibration or functional test.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">More than a heated line: the TBX-H platform<\/h3><\/div><div class=\"fusion-text fusion-text-6\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>The TBX-H combines the flexibility of a traditional hand-made corrugated line with the advantages of a modern extruded line:<\/p>\n<\/div><ul style=\"--awb-iconcolor:var(--awb-color4);--awb-textcolor:var(--awb-color6);--awb-line-height:27.2px;--awb-icon-width:27.2px;--awb-icon-height:27.2px;--awb-icon-margin:11.2px;--awb-content-margin:38.4px;\" class=\"fusion-checklist fusion-checklist-1 fusion-checklist-default fusion-checklist-divider type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Robust: the at least 2 mm thick extruded outer jacket made of PVC or TPU protects against moisture, weather and mechanical stress (IP65).<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Flexible: in the Flex version the bending radius is only 4\u20135 \u00d7 outer diameter, in the standard version 8\u201310 \u00d7.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Modular: one or two sample paths made of PTFE or PFA; calibration and media tubes, cables and temperature sensors can be integrated.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Efficient: the PSG CPD heater reduces energy demand by approx. 25\u201330% compared with conventional flexible lines.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Long: up to 450 m can be produced in one continuous length and stocked on drums; the heater is cut to the required length only when needed.<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">Developed for practical use<\/h3><\/div><div class=\"fusion-text fusion-text-7\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>The TBX-H PerfectZero is not a special solution for individual applications but a configurable platform. Two standard versions with PerfectZero barrier are available ex stock: with a replaceable 6\u00d71 mm or 8\u00d71 mm PTFE sample tube, a PVC Flex jacket and 200 \u00b0C holding temperature. Up to approx. 70 m the line is delivered as a coil in a carton, above that on a wooden drum. Lead time for standard versions is approx. two weeks without termination and approx. three weeks with termination \u2013 longer depending on capacity utilization.<\/p>\n<p>The line is delivered ready for connection from the factory or terminated with the PSG termination kit directly in the workshop or on site. Even pre-terminated lines can be shortened later. It is controlled by an external temperature controller, such as the ST49 controller, which is pre-configured for PSG sample lines.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:var(--awb-typography1-line-height);\">Where PerfectZero makes the difference<\/h2><\/div><ul style=\"--awb-iconcolor:var(--awb-color4);--awb-textcolor:var(--awb-color6);--awb-line-height:27.2px;--awb-icon-width:27.2px;--awb-icon-height:27.2px;--awb-icon-margin:11.2px;--awb-content-margin:38.4px;\" class=\"fusion-checklist fusion-checklist-2 fusion-checklist-default fusion-checklist-divider type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>CEMS and process gas analysis: wherever high holding temperatures of 180\u2013200 \u00b0C meet precise CO measurement \u2013 in combustion, power, cement and chemical plants.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-arrow-alt-circle-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p>Power plants and raw gas measurement: CO, NO\u2093, O\u2082 and SO\u2082 for combustion optimization, DeNO\u2093 and flue gas cleaning; NH\u2083 in SCR and SNCR applications. The PTFE sample tube minimizes surface interactions and sample gas losses, and PerfectZero additionally prevents CO ingress from the heater and insulation.<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-text fusion-text-8\" style=\"--awb-font-size:var(--awb-typography4-font-size);--awb-line-height:var(--awb-typography4-line-height);--awb-letter-spacing:var(--awb-typography4-letter-spacing);--awb-text-transform:var(--awb-typography4-text-transform);--awb-text-font-family:var(--awb-typography4-font-family);--awb-text-font-weight:var(--awb-typography4-font-weight);--awb-text-font-style:var(--awb-typography4-font-style);\"><p>Whether your sampling point needs PerfectZero is answered by eleven questions in our <a href=\"https:\/\/www.perfectsamplegas.de\/en\/download\/selection-guide-tbx-h-perfectzero\/?tmstv=1792489152\">printable selection guide<\/a>. All technical data can be found in the <a href=\"https:\/\/www.perfectsamplegas.de\/en\/download\/tubebundle-xtruded-heated-perfectzero\/?tmstv=1792489152\">TBX-H PerfectZero data sheet<\/a>, more on heated sample lines in our <a href=\"https:\/\/www.perfectsamplegas.de\/en\/download\/case-study-heated-sample-lines\/?tmstv=1792489152\">case study<\/a>.<\/p>\n<p>Let\u2019s talk: <a href=\"https:\/\/calendly.com\/j-mayer\/45min?month=2026-10\" target=\"_blank\" rel=\"noopener\">Book a meeting with Jonas Mayer<\/a> or <a href=\"https:\/\/www.perfectsamplegas.de\/en\/contact\/\">get in touch<\/a>.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-sizes-left:5px;--awb-border-color:var(--awb-color4);--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:5%;--awb-padding-right:5%;--awb-padding-bottom:5%;--awb-padding-left:5%;--awb-background-color:var(--awb-color3);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1289.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color6);--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:var(--awb-typography1-line-height);\">A practical gas analysis topic every month<\/h3><\/div><div class=\"fusion-text fusion-text-9\"><p>Subscribe to the PSG newsletter \u2013 with checklists and decision aids for your sampling point.<\/p>\n<\/div><div ><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.perfectsamplegas.de\/en\/company\/newsletter\/\"><i class=\"fa-arrow-alt-circle-right far awb-button__icon awb-button__icon--default button-icon-left\" aria-hidden=\"true\"><\/i><span class=\"fusion-button-text awb-button__text awb-button__text--default\">Subscribe to the newsletter<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Why can a heated sample line release CO itself? How the TBX-H PerfectZero, a CO-free heated sample line, protects low CO ranges up to 200 \u00b0C.<\/p>\n","protected":false},"author":1,"featured_media":8842,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[168],"tags":[],"class_list":["post-8874","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CO-free heated sample line up to 200 \u00b0C | PSG<\/title>\n<meta name=\"description\" content=\"CO-free heated sample line up to 200 \u00b0C: the TBX-H PerfectZero separates the PTFE tube from heater and insulation with a stainless steel barrier.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.perfectsamplegas.de\/en\/co-free-heated-sample-line-perfectzero\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CO-free heated sample line up to 200 \u00b0C | PSG\" \/>\n<meta property=\"og:description\" content=\"CO-free heated sample line up to 200 \u00b0C: the TBX-H PerfectZero separates the PTFE tube from heater and insulation with a stainless steel barrier.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.perfectsamplegas.de\/en\/co-free-heated-sample-line-perfectzero\/\" \/>\n<meta property=\"og:site_name\" content=\"PSG. 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