{"id":11366,"date":"2020-04-30T11:49:16","date_gmt":"2020-04-30T09:49:16","guid":{"rendered":"https:\/\/www.zeltwanger.de\/?page_id=11366"},"modified":"2022-05-16T11:23:23","modified_gmt":"2022-05-16T09:23:23","slug":"leak-testing-with-detection-gases","status":"publish","type":"page","link":"https:\/\/www.zeltwanger.de\/en\/technologies\/leak-testing\/leak-testing-with-detection-gases\/","title":{"rendered":"Leak testing with detection gases"},"content":{"rendered":"<h1>\n<p>Leak testing with detection gases such as helium<\/p>\n<\/h1>\n<h2>\n<p>Find the smallest leaks<\/p>\n<\/h2>\n<div>\n<p>Non-toxic, odorless, and easy to trace \u2013 the noble gas helium has numerous advantages. This is why we have developed comprehensive and needs-based testing concepts using helium and other detection gases.<\/p>\n<\/div>\n<div>\n<p>Helium only occurs in the ambient air in low concentrations and does not react with other gases. It can also be used regardless of temperature and volume changes.<\/p>\n<p>The result: Quick tests in which even the smallest leaks are detected are possible. ZELTWANGER has expanded its expertise in this area and, with the ZEDcell and ZEDdetect, offers comprehensive, adaptable test systems for detection gas testing.<\/p>\n<\/div>\n<h2>\n<p><span class=\"dk-product-name\">ZEDcell<\/span> \u2013 the system for leak testing with detection gases<\/p>\n<\/h2>\n<div>\n<p>ZELTWANGER sees itself as more than a supplier of leak testing systems \u2013 it is a complete system partner that is constantly monitoring changing quality assurance requirements.<\/p>\n<p>This is why we have developed the <a href=\"https:\/\/www.zeltwanger.de\/en\/technologies\/leak-testing\/leak-testing-with-detection-gases\/zedcell\/\">ZEDcell<\/a>, a <strong>standardized, robot-controlled system<\/strong> which you can use to locate even the smallest leaks using the <strong>sniffer method<\/strong>. It can be easily adapted to your needs and <strong>integrated into your production lines<\/strong>.<\/p>\n<\/div>\n<h3>\n<p>The advantages of the ZEDcell<\/p>\n<\/h3>\n<ul>\n<li>\n<div>\n<p>Sniffer testing method<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Minimal leak rates, high repeat accuracy<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Reproducibility<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Design, technology, automation, and assembly from a single source<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Easy calibration<\/p>\n<\/div>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"\/app\/uploads\/2020\/02\/ZW_Website-2020_ZEDcell_420x500px_R01.png\" alt=\"ZEDcell for sniffer testing using helium\"><\/p>\n<h2>\n<p><span class=\"dk-product-name\">ZEDdetect<\/span> \u2013 vacuum test and accumulation method<\/p>\n<\/h2>\n<div>\n<p>With the ZEDdetect, we have developed a modular system for the <strong>vacuum and accumulation testing method<\/strong>. We configure the test chamber according to your requirements or the test method.<\/p>\n<\/div>\n<h3>\n<p>The advantages of the ZEDdetect<\/p>\n<\/h3>\n<ul>\n<li>\n<div>\n<p>Vacuum and accumulation testing method<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Standardized process and control technology<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Scalability according to the size of the test object<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Manual and automated loading<\/p>\n<\/div>\n<\/li>\n<li>\n<div>\n<p>Flexible customer connection thanks to OPC UA<\/p>\n<\/div>\n<\/li>\n<\/ul>\n<div>\n<p>If you are looking for a system for leak testing with detection gases, please get in touch with our service team. We are happy to offer competent advice.<\/p>\n<\/div>\n<p>\n    <a href=\"\/en\/service\/automation\/\">We offer advice<\/a>\n<\/p>\n<h2>\n<p>Test method with detection gases like helium<\/p>\n<\/h2>\n<div>\n<p>Depending on the application environment and requirements, <strong>three leak testing methods with detection gases, such as helium or hydrogen<\/strong>, are particularly suitable: The sniffer test, the accumulation test, and the integral vacuum test.<\/p>\n<p>Here are the methods in more detail:<\/p>\n<\/div>\n<h3>Sniffer testing<\/h3>\n<div>\n<p>Application: For leak localization<\/p>\n<p>The test object is pressurized using tracer gas. The sniffer probe is then guided around the part. In the event of a leak, the leak detector will identify the escaping tracer gas and locate the leak.<\/p>\n<ul>\n<li>Localization of the leak<\/li>\n<li>As a rule, the object to be tested\u00a0does not have to be evacuated \u2013 or at least not completely<\/li>\n<li>Easy to do<\/li>\n<\/ul>\n<\/div>\n<p><img decoding=\"async\" src=\"\/app\/uploads\/2020\/02\/content-nachweisgas-02-schnueffelpruefung.jpg\" alt=\"Graphic of the sniffer testing method\"><\/p>\n<h3>Accumulation test<\/h3>\n<div>\n<p>Application: The test object must be tested as a complete product.<\/p>\n<p>The test object is filled with tracer gas in a simple collecting chamber, which subject to atmospheric pressure. After an accumulation time, the detector analyzes the air in the chamber and determines whether it is possible to measure an increase in the tracer gas concentration.<\/p>\n<ul>\n<li>Easy to integrate into the production line<\/li>\n<\/ul>\n<\/div>\n<p><img decoding=\"async\" src=\"\/app\/uploads\/2020\/02\/content-nachweisgas-03-akkumulationstest.jpg\" alt=\"Graphic of the accumulation testing method\"><\/p>\n<h3>Integral vacuum test<\/h3>\n<div>\n<p>Application: In production environments<\/p>\n<p>The test object is place in a vacuum test chamber and filled with tracer gas. If a leak is present, tracer gas will leak from the test object in the test chamber and be measured by the leak detector.<\/p>\n<ul>\n<li>Very sensitive<\/li>\n<li>Easy to integrate into the production line<\/li>\n<li>Easy to calibrate<\/li>\n<li>High repeat accuracy<\/li>\n<\/ul>\n<\/div>\n<p><img decoding=\"async\" src=\"\/app\/uploads\/2020\/02\/content-nachweisgas-01-vakuumtest-1.jpg\" alt=\"Graphic of the integral vacuum testing method\"><br \/>\n<img decoding=\"async\" src=\"\/app\/uploads\/2020\/05\/dichtheitspruefung_nachweisgas_en-2.svg\" alt=\"Graphic of leakage rates from individual tests\"><\/p>\n<div>\n<p>The leakage rates from individual tests demonstrate the precision of the method.<\/p>\n<\/div>\n<h3>\n<p>Still have questions?<\/p>\n<\/h3>\n<h2>Leak testing with air<\/h2>\n<div>\n<p><a href=\"https:\/\/www.zeltwanger.de\/en\/technologies\/leak-testing\/leak-testing-with-air\/\">To the ZED device family<\/a><\/p>\n<\/div>\n<h2>Our products<\/h2>\n<div>\n<p>Find out more technical details for our products.<\/p>\n<\/div>\n<div>\n<p><a href=\"https:\/\/www.zeltwanger.de\/en\/products\/\">To the products<\/a><\/p>\n<\/div>\n<h2>Service<\/h2>\n<div>\n<p>If you have questions about our systems and processes, please contact our service team.<\/p>\n<\/div>\n<div>\n<p><a href=\"https:\/\/www.zeltwanger.de\/en\/service\/\">To service<\/a><\/p>\n<\/div>\n<div>\n<h1><\/h1>\n<p>Option: <\/p>\n<\/div>\n<p><!--more--><br \/>\n<!-- {\"name\":\"Technologien DP Nachweisgase\",\"type\":\"layout\",\"children\":[{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding\":\"xlarge\",\"class\":\"highlight-section\"},\"children\":[{\"type\":\"row\",\"props\":{\"width\":\"small\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"text_color\":\"light\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h1\",\"title_style\":\"heading-small\",\"text_align\":\"center\",\"content\":\"\n\n<p>Leak testing with detection gases such as helium<\\\/p>\"}},{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"title_style\":\"heading-large\",\"margin\":\"medium\",\"text_align\":\"center\",\"content\":\"\n\n<p>Find the smallest leaks<\\\/p>\",\"margin_remove_top\":true}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"maxwidth\":\"2xlarge\",\"block_align\":\"center\",\"text_align\":\"center\",\"content\":\"\n\n<p>Non-toxic, odorless, and easy to trace \\u2013 the noble gas helium has numerous advantages. This is why we have developed comprehensive and needs-based testing concepts using helium and other detection gases.<\\\/p>\"}}]}]}],\"name\":\"Intro Text blauer Hintergrund\"},{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"default\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding\":\"xsmall\",\"padding_remove_top\":false,\"class\":\"breadcrumb\",\"padding_remove_bottom\":true},\"children\":[{\"type\":\"row\",\"props\":{\"width\":\"small\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"breadcrumbs\",\"props\":{\"margin\":\"default\",\"image_svg_color\":\"emphasis\"}}]}]}],\"name\":\"Breadcrumb\"},{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding_remove_bottom\":false},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"text_align\":\"center\",\"content\":\"\n\n<p>Helium only occurs in the ambient air in low concentrations and does not react with other gases. It can also be used regardless of temperature and volume changes.<\\\/p>\\n\n\n<p>The result: Quick tests in which even the smallest leaks are detected are possible. ZELTWANGER has expanded its expertise in this area and, with the ZEDcell and ZEDdetect, offers comprehensive, adaptable test systems for detection gas testing.<\\\/p>\"}}]}]}],\"name\":\"Intro Text\"},{\"type\":\"section\",\"props\":{\"style\":\"secondary\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding_remove_bottom\":false},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"content\":\"\n\n<p>[dkproduct name=\\\"zedcell\\\"] \\u2013 the system for leak testing with detection gases<\\\/p>\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>ZELTWANGER sees itself as more than a supplier of leak testing systems \\u2013 it is a complete system partner that is constantly monitoring changing quality assurance requirements.<\\\/p>\\n\n\n<p>This is why we have developed the <a href=\\\"https:\\\/\\\/www.zeltwanger.de\\\/en\\\/technologies\\\/leak-testing\\\/leak-testing-with-detection-gases\\\/zedcell\\\/\\\">ZEDcell<\\\/a>, a <strong>standardized, robot-controlled system<\\\/strong> which you can use to locate even the smallest leaks using the <strong>sniffer method<\\\/strong>. It can be easily adapted to your needs and <strong>integrated into your production lines<\\\/strong>.<\\\/p>\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"h4\",\"content\":\"\n\n<p>The advantages of the ZEDcell<\\\/p>\"}},{\"type\":\"list\",\"props\":{\"show_image\":true,\"show_link\":true,\"image_svg_color\":\"emphasis\",\"image_align\":\"left\",\"image_vertical_align\":false,\"icon\":\"plus\",\"list_size\":\"\",\"icon_width\":16,\"list_type\":\"vertical\",\"list_element\":\"ul\",\"list_horizontal_separator\":\", \",\"column_breakpoint\":\"m\"},\"children\":[{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Sniffer testing method<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Minimal leak rates, high repeat accuracy<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Reproducibility<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Design, technology, automation, and assembly from a single source<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Easy calibration<\\\/p>\"}}]}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"default\",\"image_svg_color\":\"emphasis\",\"image\":\"app\\\/uploads\\\/2020\\\/02\\\/ZW_Website-2020_ZEDcell_420x500px_R01.png\",\"image_alt\":\"ZEDcell for sniffer testing using helium\"}}]}]}],\"name\":\"ZEDcell\"},{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding_remove_bottom\":false},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"content\":\"\n\n<p>[dkproduct name=\\\"ZEDdetect\\\"] \\u2013 vacuum test and accumulation method<\\\/p>\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>With the ZEDdetect, we have developed a modular system for the <strong>vacuum and accumulation testing method<\\\/strong>. We configure the test chamber according to your requirements or the test method.<\\\/p>\"}},{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"h4\",\"content\":\"\n\n<p>The advantages of the ZEDdetect<\\\/p>\"}},{\"type\":\"list\",\"props\":{\"show_image\":true,\"show_link\":true,\"image_svg_color\":\"emphasis\",\"image_align\":\"left\",\"image_vertical_align\":false,\"icon\":\"plus\",\"margin_remove_bottom\":false,\"list_size\":\"\",\"icon_width\":16,\"list_type\":\"vertical\",\"list_element\":\"ul\",\"list_horizontal_separator\":\", \",\"column_breakpoint\":\"m\"},\"children\":[{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Vacuum and accumulation testing method<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Standardized process and control technology<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Scalability according to the size of the test object<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Manual and automated loading<\\\/p>\"}},{\"type\":\"list_item\",\"props\":{\"content\":\"\n\n<p>Flexible customer connection thanks to OPC UA<\\\/p>\"}}]},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>If you are looking for a system for leak testing with detection gases, please get in touch with our service team. We are happy to offer competent advice.<\\\/p>\"}},{\"type\":\"button\",\"props\":{\"grid_column_gap\":\"small\",\"grid_row_gap\":\"small\",\"margin\":\"default\",\"text_align\":\"left\"},\"children\":[{\"type\":\"button_item\",\"props\":{\"button_style\":\"primary\",\"icon_align\":\"left\",\"content\":\"We offer advice\",\"link\":\"en\\\/service\\\/automation\\\/\",\"link_title\":\"\"}}]}]}]}],\"name\":\"ZEDdetect\"},{\"type\":\"section\",\"props\":{\"style\":\"secondary\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding_remove_top\":false,\"padding_remove_bottom\":false},\"children\":[{\"type\":\"row\",\"props\":{\"margin\":\"medium\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"title_style\":\"heading-medium\",\"content\":\"\n\n<p>Test method with detection gases like helium<\\\/p>\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Depending on the application environment and requirements, <strong>three leak testing methods with detection gases, such as helium or hydrogen<\\\/strong>, are particularly suitable: The sniffer test, the accumulation test, and the integral vacuum test.<\\\/p>\\n\n\n<p>Here are the methods in more detail:<\\\/p>\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"medium\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"h4\",\"content\":\"Sniffer testing\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Application: For leak localization<\\\/p>\\n\n\n<p>The test object is pressurized using tracer gas. The sniffer probe is then guided around the part. In the event of a leak, the leak detector will identify the escaping tracer gas and locate the leak.<\\\/p>\\n\n\n<ul>\\n\n\n<li>Localization of the leak<\\\/li>\\n\n\n<li>As a rule, the object to be tested\\u00a0does not have to be evacuated \\u2013 or at least not completely<\\\/li>\\n\n\n<li>Easy to do<\\\/li>\\n<\\\/ul>\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"default\",\"image_svg_color\":\"emphasis\",\"image\":\"app\\\/uploads\\\/2020\\\/02\\\/content-nachweisgas-02-schnueffelpruefung.jpg\",\"image_alt\":\"Graphic of the sniffer testing method\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"medium\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"h4\",\"content\":\"Accumulation test\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Application: The test object must be tested as a complete product.<\\\/p>\\n\n\n<p>The test object is filled with tracer gas in a simple collecting chamber, which subject to atmospheric pressure. After an accumulation time, the detector analyzes the air in the chamber and determines whether it is possible to measure an increase in the tracer gas concentration.<\\\/p>\\n\n\n<ul>\\n\n\n<li>Easy to integrate into the production line<\\\/li>\\n<\\\/ul>\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"order_first\":\"m\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"medium\",\"image_svg_color\":\"emphasis\",\"image\":\"app\\\/uploads\\\/2020\\\/02\\\/content-nachweisgas-03-akkumulationstest.jpg\",\"image_alt\":\"Graphic of the accumulation testing method\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"medium\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"h4\",\"content\":\"Integral vacuum test\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Application: In production environments<\\\/p>\\n\n\n<p>The test object is place in a vacuum test chamber and filled with tracer gas. If a leak is present, tracer gas will leak from the test object in the test chamber and be measured by the leak detector.<\\\/p>\\n\n\n<ul>\\n\n\n<li>Very sensitive<\\\/li>\\n\n\n<li>Easy to integrate into the production line<\\\/li>\\n\n\n<li>Easy to calibrate<\\\/li>\\n\n\n<li>High repeat accuracy<\\\/li>\\n<\\\/ul>\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"default\",\"image_svg_color\":\"emphasis\",\"image\":\"app\\\/uploads\\\/2020\\\/02\\\/content-nachweisgas-01-vakuumtest-1.jpg\",\"image_alt\":\"Graphic of the integral vacuum testing method\"}}]}]},{\"type\":\"row\",\"props\":{\"margin\":\"large\",\"margin_remove_bottom\":true},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"medium\",\"image_svg_color\":\"emphasis\",\"image\":\"app\\\/uploads\\\/2020\\\/05\\\/dichtheitspruefung_nachweisgas_en-2.svg\",\"image_alt\":\"Graphic of leakage rates from individual tests\",\"margin_remove_bottom\":false}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>The leakage rates from individual tests demonstrate the precision of the method.<\\\/p>\"}}]}]}],\"name\":\"Pr\\u00fcfverfahren mit NACHWEISGASEN\"},{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"small\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"padding_remove_top\":false},\"children\":[{\"type\":\"row\",\"props\":{\"margin\":\"medium\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h3\",\"title_style\":\"heading-medium\",\"text_align\":\"left\",\"content\":\"\n\n<p>Still have questions?<\\\/p>\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"column_gap\":\"collapse\",\"row_gap\":\"collapse\",\"margin\":\"small\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"middle\",\"style\":\"secondary\",\"width_small\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"title_style\":\"heading-medium\",\"position\":\"relative\",\"content\":\"Leak testing with air\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"middle\",\"style\":\"secondary\",\"width_small\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"text_align\":\"right\",\"text_align_breakpoint\":\"s\",\"content\":\"\n\n<p><a href=\\\"https:\\\/\\\/www.zeltwanger.de\\\/en\\\/technologies\\\/leak-testing\\\/leak-testing-with-air\\\/\\\">To the ZED device family<\\\/a><\\\/p>\",\"position_right\":\"0\",\"position_top\":\"20px\",\"css\":\".el-element p {\\n\\tmargin-bottom: 0;\\n}\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"style\":\"secondary\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"title_style\":\"heading-medium\",\"content\":\"Our products\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Find out more technical details for our products.<\\\/p>\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p><a href=\\\"https:\\\/\\\/www.zeltwanger.de\\\/en\\\/products\\\/\\\">To the products<\\\/a><\\\/p>\"},\"name\":\"Link\"}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"style\":\"secondary\",\"width_medium\":\"1-2\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h2\",\"title_style\":\"heading-medium\",\"content\":\"Service\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>If you have questions about our systems and processes, please contact our service team.<\\\/p>\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"content\":\"\n\n<p><a href=\\\"https:\\\/\\\/www.zeltwanger.de\\\/en\\\/service\\\/\\\">To service<\\\/a><\\\/p>\"},\"name\":\"Link\"}]}]}],\"name\":\"CTA Graue Kacheln\"},{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"default\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"id\":\"flyout\"},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"width_medium\":\"1-1\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"flyout\",\"props\":{\"show_image\":true,\"show_content_title\":true,\"flyout_button_text\":\"Contact us\",\"content_title\":\"Still have questions?\",\"parent\":\"flyout\"},\"children\":[{\"type\":\"flyout_item\",\"props\":{\"post_id\":20897,\"name_text\":\"20897\"}},{\"type\":\"flyout_item\",\"props\":{\"post_id\":20898,\"name_text\":\"20898\"}}]}]}]}],\"name\":\"Ansprechperson Flyout\"}],\"version\":\"2.7.20\"} --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Leak testing with detection gases such as helium Find the smallest leaks Non-toxic, odorless, and easy to trace \u2013 the noble gas helium has numerous advantages. This is why we have developed comprehensive and needs-based testing concepts using helium and other detection gases. Helium only occurs in the ambient air in low concentrations and does [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":11349,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-11366","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Helium | Reliable leak testing with detection gases<\/title>\n<meta name=\"description\" content=\"Localization of the smallest leaks: Leak testing with helium and other detection gases: Integral vacuum test \u2022 Sniffer testing \u2022 Accumulation test\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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