{"id":5647,"date":"2026-03-17T11:23:18","date_gmt":"2026-03-17T10:23:18","guid":{"rendered":"https:\/\/www.ecom.de\/glossar\/nox-measurement\/"},"modified":"2026-07-09T11:06:34","modified_gmt":"2026-07-09T09:06:34","slug":"nox-measurement","status":"publish","type":"glossar","link":"https:\/\/www.ecom.de\/en\/glossar\/nox-measurement\/","title":{"rendered":"NOx measurement"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">In many applications, however, it is essential to accurately calculate the NO<sub>x<\/sub> value by measuring the effectively measured NO and NO<sub>2<\/sub> values in the exhaust gas. The following success factors are relevant for NO<sub>x<\/sub> determination: Fast transport in the sample extraction system (with small diameter at maximum pump performance), prevention of condensate formation (including through PTFE probe tubing and the flue gas cooler), and additional drying of the gas through the flue gas cooler. With ecom flue gas analysis devices, NO<sub>x<\/sub> measurements can be performed using the following measurement methods with varying levels of accuracy:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li>Electrochemical Measurement (NO and NO<sub>2<\/sub> Gas Sensor)<\/li>\n\n\n\n<li>Chemical Luminescence (CLD) for NO measurement in combination with an NO<sub>2<\/sub> gas sensor (electrochemical measurement)<\/li>\n\n\n\n<li>Chemical Luminescence (CLD) in combination with a converter that converts NO<sub>2<\/sub> to NO, thereby making the nitrogen oxides (NO<sub>x<\/sub>) completely measurable.<\/li>\n\n\n\n<li>Chemical Luminescence (CLD) for NO measurement in combination with Photoacoustic Spectroscopy (PAS) for NO<sub>2<\/sub> measurement<\/li>\n<\/ul>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"class_list":["post-5647","glossar","type-glossar","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ecom.de\/en\/wp-json\/wp\/v2\/glossar\/5647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecom.de\/en\/wp-json\/wp\/v2\/glossar"}],"about":[{"href":"https:\/\/www.ecom.de\/en\/wp-json\/wp\/v2\/types\/glossar"}],"wp:attachment":[{"href":"https:\/\/www.ecom.de\/en\/wp-json\/wp\/v2\/media?parent=5647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}