{"id":13881,"date":"2025-11-13T15:41:27","date_gmt":"2025-11-13T14:41:27","guid":{"rendered":"https:\/\/psl-systemtechnik.com\/?p=13881"},"modified":"2026-01-05T10:17:52","modified_gmt":"2026-01-05T09:17:52","slug":"impact-of-stir-bar-wear-on-cold-finger-test-results","status":"publish","type":"post","link":"https:\/\/psl-systemtechnik.com\/en\/impact-of-stir-bar-wear-on-cold-finger-test-results\/","title":{"rendered":"Impact of stir bar wear on cold finger test results"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"13881\" class=\"elementor elementor-13881 elementor-13880\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75f1f205 e-flex e-con-boxed e-con e-parent\" data-id=\"75f1f205\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7fe130f elementor-widget elementor-widget-heading\" data-id=\"7fe130f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Expert Knowledge<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-25c4e7cf elementor-widget elementor-widget-heading\" data-id=\"25c4e7cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Impact of stir bar wear on cold finger test results<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-53738ce e-flex e-con-boxed e-con e-parent\" data-id=\"53738ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-46e5aeb elementor-widget elementor-widget-text-editor\" data-id=\"46e5aeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Magnetic stirrers are an essential component of cold finger tests. They ensure that the oil sample is mixed homogeneously during cooling and wax deposition. Over time, however, the performance of the stir bars can deteriorate, for example due to loss of magnetic force, mechanical wear, or repeated exposure to higher temperatures.<\/p>\n<p>This gradual decline in performance often goes unnoticed, but can have a significant impact on the accuracy and reproducibility of test results. A weakened stirring bar reduces the effective shear in the sample, promotes uneven temperature distribution, and can cause local wax deposition.<\/p>\n<p>As a result, the measured wax mass may deviate from the actual deposition behavior. Recent observations have shown that even a slight reduction in stirring efficiency can alter the test result <strong>by more than 10 percent<\/strong>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3fbe882 e-flex e-con-boxed e-con e-parent\" data-id=\"3fbe882\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f210307 elementor-widget elementor-widget-heading\" data-id=\"f210307\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to identify the issue in practice<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e39ade8 elementor-widget elementor-widget-heading\" data-id=\"e39ade8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Visually<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7f702e elementor-widget elementor-widget-text-editor\" data-id=\"d7f702e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The stir bar no longer runs smoothly and centrally in the beaker. It wobbles, moves irregularly or even jumps.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c835f4 elementor-widget elementor-widget-heading\" data-id=\"1c835f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Acoustically<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-81c7b53 elementor-widget elementor-widget-text-editor\" data-id=\"81c7b53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The sound of the stirring process changes. The background noise becomes unstable. At times you can hear the stir bar hitting the glass or insert. Overall, the operation sounds louder than usual.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b7743b elementor-widget elementor-widget-text-editor\" data-id=\"6b7743b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Such signs clearly indicate that the stirring performance no longer corresponds to the original condition and that the test results should be reviewed carefully.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a071cdc e-flex e-con-boxed e-con e-parent\" data-id=\"a071cdc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9c70ce5 e-flex e-con-boxed e-con e-child\" data-id=\"9c70ce5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4ea900d e-flex e-con-boxed e-con e-child\" data-id=\"4ea900d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69f87d3 elementor-widget elementor-widget-heading\" data-id=\"69f87d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Recommendations for reliable cold finger operation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4b3e12 elementor-widget elementor-widget-text-editor\" data-id=\"f4b3e12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To maintain high quality and comparability of your cold finger measurements, we recommend:<\/p>\n<ul>\n<li>Regularly checking the stirring performance by visual and acoustic observation during the test.<\/li>\n<li>Replacing stir bars that show irregular movement, interruptions or audible vibration.<\/li>\n<li>Documenting replacement intervals and any abnormalities as part of your laboratory quality control.<\/li>\n<\/ul>\n<p>Consistent monitoring of this seemingly small component makes an important contribution to ensuring the reproducibility of your cold finger test results and helps to identify deviations at an early stage.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4655b28 e-flex e-con-boxed e-con e-parent\" data-id=\"4655b28\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-b8e381c e-con-full e-flex e-con e-child\" data-id=\"b8e381c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-aae0132 e-con-full e-flex e-con e-child\" data-id=\"aae0132\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1f012a7 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"1f012a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-lightbulb\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Practical Tip<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-08dbadd e-con-full e-flex e-con e-child\" data-id=\"08dbadd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6bcfc24 elementor-widget elementor-widget-text-editor\" data-id=\"6bcfc24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The PSL <a href=\"https:\/\/psl-systemtechnik.com\/en\/products\/cold-finger-wax\/\">Cold Finger family<\/a> provides good access and direct visual control of the stirring process. This makes it easy to assess stirring performance during operation and to react quickly when intervention is required.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d37c9a0 e-flex e-con-boxed e-con e-parent\" data-id=\"1d37c9a0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7d7a6fde e-flex e-con-boxed e-con e-child\" data-id=\"7d7a6fde\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f75d65a elementor-widget elementor-widget-image\" data-id=\"3f75d65a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/information-image.png\" title=\"\" alt=\"Icon f\u00fcr PSL information\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2b6d2b5e e-con-full e-flex e-con e-child\" data-id=\"2b6d2b5e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4b0152ea elementor-widget elementor-widget-heading\" data-id=\"4b0152ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Do you need any further information<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6991274a elementor-widget elementor-widget-text-editor\" data-id=\"6991274a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We look forward to your questions.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b5f9d04 elementor-mobile-align-center elementor-widget elementor-widget-button\" data-id=\"4b5f9d04\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/psl-systemtechnik.com\/en\/contact-us\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-afe8c8a e-flex e-con-boxed e-con e-parent\" data-id=\"afe8c8a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-b5a1e73 e-con-full e-flex e-con e-child\" data-id=\"b5a1e73\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7805751 elementor-widget elementor-widget-heading\" data-id=\"7805751\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Cold Finger Product Family<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-114df9b e-flex e-con-boxed e-con e-child\" data-id=\"114df9b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<a class=\"elementor-element elementor-element-da568b6 e-flex e-con-boxed e-con e-child\" data-id=\"da568b6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/psl-systemtechnik.com\/en\/products\/cold-finger-wax\/multi-place-cold-finger\/\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-493b610 elementor-widget elementor-widget-image\" data-id=\"493b610\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1-768x512.webp\" class=\"attachment-medium_large size-medium_large wp-image-7493\" alt=\"Cold Finger CF6 mit 250 ml Flaschen 1800x1200\" srcset=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1-768x512.webp 768w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1-300x200.webp 300w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1-1024x683.webp 1024w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1-1536x1024.webp 1536w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/07\/Cold-Finger-CF6-real-mit-250-ml-Flaschen-1800x1200-min-1.webp 1800w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-386a7b5 elementor-widget elementor-widget-heading\" data-id=\"386a7b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">THE PROVEN<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5eeafe5 elementor-widget elementor-widget-heading\" data-id=\"5eeafe5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Multi-Place Cold Finger<br>CF6<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62a7ba0 elementor-widget elementor-widget-text-editor\" data-id=\"62a7ba0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The\u00a0<strong>\u2018Proven\u2019<\/strong>\u00a0with 6 measuring stations with water bath and innovative lift system for easier operation. The affordable entry-level model for low to medium sample throughput.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-f14a279 e-flex e-con-boxed e-con e-child\" data-id=\"f14a279\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/psl-systemtechnik.com\/en\/products\/cold-finger-wax\/multi-rack-cold-finger\/\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0bcbf73 elementor-widget elementor-widget-image\" data-id=\"0bcbf73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-image-1475\" alt=\"Multi-Place Cold Finger CF15: Laborger\u00e4t zum Messen von Wachs, Wachsablagerungen, Wachsgehalt, Inhibitorscreening in Erd\u00f6len und Roh\u00f6len sowie Wachsinhibitoren testen, Cold Finger Test, von PSL Systemtechnik, Made in Germany.\" srcset=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1-768x512.jpg 768w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1-300x200.jpg 300w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1-1024x683.jpg 1024w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1-1536x1024.jpg 1536w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-cf15-1800x1200-1.jpg 1800w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ca3778 elementor-widget elementor-widget-heading\" data-id=\"3ca3778\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">THE PROFESSIONAL<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7c48d2 elementor-widget elementor-widget-heading\" data-id=\"a7c48d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Multi-Rack Cold Finger<br>CF15 <\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1506671 elementor-widget elementor-widget-text-editor\" data-id=\"1506671\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The \u2018<strong>Professional<\/strong>\u2019 in the laboratory with maximum flexibility, accuracy and safety. From 5 to 15 places with a wide temperature range, many options and used by leading laboratories.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-59586fd e-flex e-con-boxed e-con e-child\" data-id=\"59586fd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/psl-systemtechnik.com\/en\/products\/cold-finger-wax\/coaxial-shear-cold-finger\/\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b07d98c elementor-widget elementor-widget-image\" data-id=\"b07d98c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1-768x512.webp\" class=\"attachment-medium_large size-medium_large wp-image-1483\" alt=\"Cold Finger Coaxial Shear csCF6, Laborger\u00e4t Wachsscherung\" srcset=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1-768x512.webp 768w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1-300x200.webp 300w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1-1024x683.webp 1024w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1-1536x1024.webp 1536w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cfs-1800x1200-1.webp 1800w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94f490c elementor-widget elementor-widget-heading\" data-id=\"94f490c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">THE SPECIALIST<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d9884b elementor-widget elementor-widget-heading\" data-id=\"7d9884b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Coaxial Shear Cold Finger<br>cCF6<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2012a5 elementor-widget elementor-widget-text-editor\" data-id=\"c2012a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The \u2018<strong>Specialist<\/strong>\u2019 with 6 rotating cooling fingers with water bath and lift system. It simulates the coaxial shear in the pipeline and measures the effects on the wax deposits.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<a class=\"elementor-element elementor-element-ab3e862 e-flex e-con-boxed e-con e-child\" data-id=\"ab3e862\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\" href=\"https:\/\/psl-systemtechnik.com\/en\/products\/cold-finger-wax\/mobile-cold-finger\/\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e6d1871 elementor-widget elementor-widget-image\" data-id=\"e6d1871\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1-768x512.webp\" class=\"attachment-medium_large size-medium_large wp-image-1481\" alt=\"Mobile Cold Finger mCF Lab Instrument, Wax deposits, PSL Systemtechnik\" srcset=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1-768x512.webp 768w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1-300x200.webp 300w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1-1024x683.webp 1024w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1-1536x1024.webp 1536w, https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/cold-finger-mcf-1800x1200-1.webp 1800w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4a3c1d elementor-widget elementor-widget-heading\" data-id=\"a4a3c1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">THE INDEPENDENT<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e59a914 elementor-widget elementor-widget-heading\" data-id=\"e59a914\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Mobile Cold Finger<br>mCF2<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-070dfc8 elementor-widget elementor-widget-text-editor\" data-id=\"070dfc8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The \u2018<strong>Independent<\/strong>\u2019 with 2 measuring stations for mobile use or for low sample throughput. The PSL technology from its big brother has been implemented here in the smallest of spaces.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5850c70d e-flex e-con-boxed e-con e-parent\" data-id=\"5850c70d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1855333b e-flex e-con-boxed e-con e-child\" data-id=\"1855333b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b0b501d elementor-widget elementor-widget-image\" data-id=\"6b0b501d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/psl-systemtechnik.com\/wp-content\/uploads\/2024\/01\/newsletter-image2.png\" title=\"\" alt=\"Icon f\u00fcr PSL Newsletter\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6e6d8397 e-con-full e-flex e-con e-child\" data-id=\"6e6d8397\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3e748b4f elementor-widget elementor-widget-heading\" data-id=\"3e748b4f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Have you heard about our newsletter?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d09f064 elementor-widget elementor-widget-text-editor\" data-id=\"5d09f064\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Don\u2019t miss any more PSL news and secure exclusive benefits!<br \/>We provide you with important updates.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d859ea0 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"1d859ea0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/psl-systemtechnik.com\/en\/worry-free-service\/newsletter-registration\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Subscribe to Newsletter<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Expert Knowledge Impact of stir bar wear on cold finger test results Magnetic stirrers are an essential component of cold finger tests. They ensure that the oil sample is mixed homogeneously during cooling and wax deposition. Over time, however, the performance of the stir bars can deteriorate, for example due&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[114],"tags":[115,116],"class_list":["post-13881","post","type-post","status-publish","format-standard","hentry","category-measurement-in-practice","tag-application","tag-cold-finger"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Impact of stir bar wear on cold finger test results<\/title>\n<meta name=\"description\" content=\"Even 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