{"id":24601,"date":"2024-03-25T12:55:58","date_gmt":"2024-03-25T11:55:58","guid":{"rendered":"https:\/\/ecol.eu\/?post_type=case-study&#038;p=24601"},"modified":"2024-05-09T10:08:47","modified_gmt":"2024-05-09T08:08:47","slug":"oil-foaming-test-test-method","status":"publish","type":"case-study","link":"https:\/\/ecol.eu\/en\/case-study\/oil-foaming-test-test-method\/","title":{"rendered":"Oil foaming test method"},"content":{"rendered":"<header class=\"page-hero case-study-hero alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <div class=\"offset-lg-1 col-lg-7 page-hero__text\">\n\n\t        <nav aria-label=\"Okruszki\" role=\"navigation\">\n  <ul class=\"breadcrumbs\" aria-label=\"lista okruszk\u00f3w\">\n\n    \n      <li class=\"breadcrumbs__item\">\n\n                  <a href=\"https:\/\/ecol.eu\/en\/\" class=\"breadcrumbs__link\">Home page<\/a>\n        \n      <\/li>\n\n    \n  <\/ul>\n<\/nav>\n\n          <h1 class=\"heading heading--sb\">Oil foaming test method<\/h1>\n\n          \n            <div class=\"editor\"><p>Standard test method according to PN-ISO 6247:2009 <\/p>\n<p>Flender foaming test according to ISO\/DIS 12152<\/p>\n<\/div>\n\n          \n      <\/div>\n      <ul class=\"col-lg-7 offset-lg-1 links\"><\/ul>\n    <\/div>\n\n\t  \n\t\t  <svg class=\"page-hero__bg page-hero__bg--diagnostics\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xml:space=\"preserve\" width=\"122.057mm\" height=\"171.64mm\" version=\"1.1\" style=\"shape-rendering:geometricPrecision; text-rendering:geometricPrecision; image-rendering:optimizeQuality; fill-rule:evenodd; clip-rule:evenodd\"\r\nviewBox=\"0 0 13001.94 18283.7\"\r\n xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\">\r\n <defs>\r\n  <style type=\"text\/css\">\r\n    .str1 {stroke:#1D1D1B;stroke-width:11.27;stroke-miterlimit:22.9256}\r\n    .str0 {stroke:#1D1D1B;stroke-width:22.55;stroke-miterlimit:22.9256}\r\n    .str5 {stroke:#1D1D1B;stroke-width:21.3;stroke-miterlimit:22.9256}\r\n    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d=\"M11559.44 13383.22c-0.8,-130.44 3.49,-256.42 0.14,-384.6 43.1,53.59 87.02,108.21 131.24,163.32 0.47,19.26 1.99,39.22 2.56,58.17 -41.11,56.81 -90.65,107.66 -133.93,163.11z\"\/>\r\n <\/g>\r\n<\/svg>\n\n\t  \n  <\/div>\n<\/header>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <p class=\"post__paragraph\">The foaming propensity test method is an important tool in analysing and understanding this phenomenon in the context of hydraulic oil and allows a\u00a0scientific approach to the issue. With proper testing and careful analysis of the results, it is possible to effectively manage the problem of hydraulic oil foaming. By implementing corrections based on the data obtained in the diagnostic report, it is possible to maintain the optimal performance of the hydraulic system and avoid potential failures. <\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <h2 class=\"post__header heading heading--line\">standard test method according to PN-ISO 6247:2009<\/h2>\n<p class=\"post__paragraph\">The aim of the test is to determine the volume of foam formed and its persistence. An oil sample is placed in a\u00a0measuring cylinder, then pure atmospheric air is passed through it for 5 minutes using a\u00a0babbler dipped in oil. The volume of foam, expressed in cm3, provides a\u00a0measure of foaming propensity. After the measurement, a\u00a0wait of 1 to 10 minutes is made, depending on the prescriptive requirements, and then the volume of foam is measured again. This volume, measured after a\u00a0period of time, is referred to as foam persistence. This test is carried out in three sequences:<\/p>\n<ul class=\"post__list post__list--nonordered\">\n<li class=\"post__list-item\">Sequence I \u2013\u00a0involves taking a\u00a0measurement at 24\u25e6C <\/li>\n<li class=\"post__list-item\">Sequence II \u2013\u00a0involves taking a\u00a0measurement at 93.5\u25e6C (new sample) <\/li>\n<li class=\"post__list-item\">Sequence III \u2013\u00a0measurement at 24\u25e6C made for the sample after measurement at 93.5\u25e6C<\/li>\n<\/ul>\n<p class=\"post__paragraph\">The foaming propensity requirements are given as an example as follows:<\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"772\" height=\"315\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/tabela.png\" alt=\"\" class=\"wp-image-24209\" srcset=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/tabela.png 772w, https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/tabela-300x122.png 300w, https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/tabela-768x313.png 768w\" sizes=\"auto, (max-width: 772px) 100vw, 772px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <p class=\"post__paragraph\">From the table above, we can conclude that the foaming characteristics are different for high viscosity oils compared to turbine oils or hydraulic fluids. One reason may be that the amount of air pumped into the oil depends on its viscosity. High viscosity oils generate high back pressure. The higher the viscosity, the lower the amount of air drawn in and the lower the foaming tendency. Hence, the test is most reliable for turbine oils and hydraulic oils with low viscosities (ISO VG 32 or ISO VG 46).<\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <h2 class=\"post__header heading heading--line\">flender foaming test according to ISO\/DIS 12152<\/h2>\n<p class=\"post__paragraph\">The measurement of foaming properties is standardised according to ISO\/DIS 12152. Inside the Flender Foam Tester, a\u00a0pair of gears rotate horizontally at 1405 revolutions per minute. Oil is poured into the apparatus until the spur gears are covered at half their height. The gears begin to rotate for five minutes, splashing air into the oil like a\u00a0mixer.<\/p>\n<p class=\"post__paragraph\">After 90 minutes, any change in oil phase, oil dispersion and foam volume is documented. The percentage increase in oil volume one minute after stopping the unit, and the percentage increase in air-oil dispersion volume five minutes after stopping the unit, are two key values in evaluating this test.<\/p>\n<p class=\"post__paragraph\">In the case of a\u00a0percentage increase in oil volume one minute after the unit has stopped, the following assessment is necessary:<\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"table alignwide tests  \">\n\t<div class=\"container\">\n\t\t<div class=\"row\">\n\t\t\t<div class=\"offset-lg-2 col-xl-9 col-lg-10 tests__table tests__table--empty\">\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t<div class=\"tests__table-wrapper\">\n\t\t\t\t\t\t<div class=\"table\">\n\t\t\t\t\t\t\t<div class=\"table__row table__row--head table__row--empty\">\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"table__row table__row--empty\">\n\t\t\t\t\t\t\t\t\t<div class=\"table__col table__col--ornament\">\n\t\t\t\t\t\t\t\t\t\t<h4 class=\"heading\">up to 5%<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<p class=\"desc\">good stem properties<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"table__row table__row--empty\">\n\t\t\t\t\t\t\t\t\t<div class=\"table__col table__col--ornament\">\n\t\t\t\t\t\t\t\t\t\t<h4 class=\"heading\">up to 10%<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<p class=\"desc\">satisfactory stem properties<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"table__row table__row--empty\">\n\t\t\t\t\t\t\t\t\t<div class=\"table__col table__col--ornament\">\n\t\t\t\t\t\t\t\t\t\t<h4 class=\"heading\">up to 15%<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<p class=\"desc\">trunk properties within an acceptable range<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"table__row table__row--empty\">\n\t\t\t\t\t\t\t\t\t<div class=\"table__col table__col--ornament\">\n\t\t\t\t\t\t\t\t\t\t<h4 class=\"heading\">above 15%<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<p class=\"desc\">unacceptable trunk properties<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <h3 class=\"post__header heading heading--line\">HV 68 hydraulic oil samples \u2013\u00a0example of characteristics<\/h3>\n<p class=\"post__paragraph\">As an example of the foaming characteristics, we can cite recently tested samples of HV 68 hydraulic oil. Mineral-based hydraulic oils are distinguished by their high viscosity index. They have anti-foaming, anti-corrosion and anti-seize properties, which enable them to operate under varying load and high temperature conditions. The standard foaming characteristics for this type of oil are as follows:<\/p>\n<ul class=\"post__list post__list--nonordered\">\n<li class=\"post__list-item\">Sequence I: 10\/0<\/li>\n<li class=\"post__list-item\">Sequence II: 0\/0<\/li>\n<li class=\"post__list-item\">Sequence III: 10\/0<\/li>\n<\/ul>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <p class=\"post__paragraph\">The oil\u2019s foaming propensity test (HV ISO VG 68) suggests that its foaming characteristics are within standard. The test in sequence one was performed at 24 degrees Celsius. No foaming was observed 5 minutes after the start of oil aeration. (10\/0).<\/p>\n<p>Sequence I:<br>\nThe bath in the measuring cylinder was then heated to 93.5 degrees Celsius. The aeration of the sample was measured. The photo shows a\u00a0foam level of 20 ml. No foam persistence (0\/0) was observed after 10 minutes. This indicates that the oil exhibits harmless foaming at higher temperatures, which does not affect its operation and other physicochemical parameters.<\/p>\n<p>Sequence II:<br>\nAfter testing in sequence two, the sample was gently mixed and the remaining foam was collected. It was then cooled to 43.5 degrees Celsius, leaving the sample cylinder at room temperature. Subsequently, it was placed in a\u00a0bath at 24 degrees Celsius. When the test sample reached this temperature, aeration was started. The result was recorded at the end of aeration and 10 minutes after the sample was set aside. It can be concluded that the oil is not prone to foaming and foam persistence.<\/p>\n<p>Sequence III:<br>\nA test was also carried out on fresh and used MOTULTECH UNIVERSELLE 90 SC multifunctional oil, free of organo-chlorinated additives. This oil is suitable for the realisation of cold deforming, knockout, threading, coiling operations and allows lubrication of machine tool organs. At the outset, the characteristics are presented in three sequences for fresh oil.<\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"tiles  gallery alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <div class=\"offset-lg-2 col-lg-5\">\n\n        \n        \n        \n      <\/div>\n\n      \n        <div class=\"offset-lg-2 col-lg-9 tiles__items\">\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwencja-1Obraz3.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Figure: Sequence I - oil test at 24 deg C. No foam persistence.\" data-description=\"Figure: Sequence I - oil test at 24 deg C. No foam persistence.\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwencja-1Obraz3.jpg\" class=\"tiles__image\" alt=\"Figure: Sequence I - oil test at 24 deg C. No foam persistence.\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Figure: Sequence I &#8211; oil test at 24 deg C. No foam persistence.<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwncja2Obraz4.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence II - when oil is heated to 93.5 deg. No persistence of foam\" data-description=\"Sequence II - when oil is heated to 93.5 deg. No persistence of foam\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwncja2Obraz4.jpg\" class=\"tiles__image\" alt=\"Sequence II - when oil is heated to 93.5 deg. No persistence of foam\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence II &#8211; when oil is heated to 93.5 deg. No persistence of foam<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwencja3Obraz5.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence III - once the oil has cooled to 24 deg. No foam persists.\" data-description=\"Sequence III - once the oil has cooled to 24 deg. No foam persists.\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sekwencja3Obraz5.jpg\" class=\"tiles__image\" alt=\"Sequence III - once the oil has cooled to 24 deg. No foam persists.\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence III &#8211; once the oil has cooled to 24 deg. No foam persists.<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n        <\/div>\n\n      \n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <h3 class=\"post__header heading heading--line\">MOTULTECH UNIVERSELLE 90 SC \u2013\u00a0testing fresh and used oil<\/h3>\n<p>A test was also carried out on fresh and used MOTULTECH UNIVERSELLE 90 SC multifunctional oil, free of organo-chlorinated additives. This oil is suitable for the realisation of cold deforming, knockout, threading, coiling operations and allows lubrication of machine tool organs.<br>\nAt the outset, the characteristics are presented in three sequences for fresh oil.<\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"tiles  gallery alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <div class=\"offset-lg-2 col-lg-5\">\n\n        \n        \n        \n      <\/div>\n\n      \n        <div class=\"offset-lg-2 col-lg-9 tiles__items\">\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek2a.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence I - lack of foam persistence\" data-description=\"Sequence I - lack of foam persistence\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek2a.jpg\" class=\"tiles__image\" alt=\"Sequence I - lack of foam persistence\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence I &#8211; lack of foam persistence<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek2b.png\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence II - lack of foam persistence\" data-description=\"Sequence II - lack of foam persistence\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek2b.png\" class=\"tiles__image\" alt=\"Sequence II - lack of foam persistence\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence II &#8211; lack of foam persistence<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek3a.png\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence III - lack of foam persistence\" data-description=\"Sequence III - lack of foam persistence\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek3a.png\" class=\"tiles__image\" alt=\"Sequence III - lack of foam persistence\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence III &#8211; lack of foam persistence<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n        <\/div>\n\n      \n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"editor alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <article class=\"offset-lg-2 col-xl-9 col-lg-10 editor__text\">\n\n        \n          \n            \n\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t      \n\t\t\t\t\t\t      \t\t\t\t\t\t\t      <div class=\"post\">\n\t\t\t\t\t\t\t\t      <h3 class=\"post__header heading heading--line\">used oil testing<\/h3>\n<p class=\"post__paragraph\">A test of the used oil was then carried out. In the test, a\u00a0very high foaming tendency was observed in all sequences and a\u00a0high foaming persistence in the first and third sequences. <\/p>\n<p class=\"post__paragraph\">Visual assessment of the tested oil alone suggests that it is significantly contaminated, resulting in reduced surface tension. At high temperatures, the oil does not release air and its lubricating properties are significantly impaired.   <\/p>\n\n\t\t\t\t\t\t\t      <\/div>\n\t\t\t\t\t\t      \t\t\t\t\t      <\/div>\n                \n          \n        \n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"tiles  gallery alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n      <div class=\"offset-lg-2 col-lg-5\">\n\n        \n        \n        \n      <\/div>\n\n      \n        <div class=\"offset-lg-2 col-lg-9 tiles__items\">\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz16.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence I (600\/370) - foaming was observed, as well as foam persistence after time at 24 deg.\" data-description=\"Sequence I (600\/370) - foaming was observed, as well as foam persistence after time at 24 deg.\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz16.jpg\" class=\"tiles__image\" alt=\"Sequence I (600\/370) - foaming was observed, as well as foam persistence after time at 24 deg.\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence I (600\/370) &#8211; foaming was observed, as well as foam persistence after time at 24 deg.<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz17.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence II ( 400\/0) - oil foaming was observed when heated to 93.5 deg. - no foam persistence.\" data-description=\"Sequence II ( 400\/0) - oil foaming was observed when heated to 93.5 deg. - no foam persistence.\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz17.jpg\" class=\"tiles__image\" alt=\"Sequence II ( 400\/0) - oil foaming was observed when heated to 93.5 deg. - no foam persistence.\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence II ( 400\/0) &#8211; oil foaming was observed when heated to 93.5 deg. &#8211; no foam persistence.<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n            <a href=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz18.jpg\" class=\"tiles__image-wrapper glightbox\" data-title=\"Sequence III (650\/450) - foaming and foam persistence were observed after the oil had cooled to 24 deg and time had elapsed.\" data-description=\"Sequence III (650\/450) - foaming and foam persistence were observed after the oil had cooled to 24 deg and time had elapsed.\">\n\n\t            <figure>\n\t\t            <img decoding=\"async\" src=\"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/Obraz18.jpg\" class=\"tiles__image\" alt=\"Sequence III (650\/450) - foaming and foam persistence were observed after the oil had cooled to 24 deg and time had elapsed.\" loading=\"lazy\">\n\n\t\t            \t\t\t            <figcaption>Sequence III (650\/450) &#8211; foaming and foam persistence were observed after the oil had cooled to 24 deg and time had elapsed.<\/figcaption>\n\t\t            \n\t            <\/figure>\n            <\/a>\n\n          \n        <\/div>\n\n      \n    <\/div>\n  <\/div>\n<\/section>\n\n\n<section class=\"table alignwide tests  \">\n\t<div class=\"container\">\n\t\t<div class=\"row\">\n\t\t\t<div class=\"offset-lg-2 col-xl-9 col-lg-10 tests__table tests__table--empty\">\n\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t<div class=\"tests__table-wrapper\">\n\t\t\t\t\t\t<div class=\"table\">\n\t\t\t\t\t\t\t<div class=\"table__row table__row--head table__row--empty\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"heading\">Fresh oil<\/h3>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<h3 class=\"heading\">Used oil<\/h3>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"table__row table__row--empty\">\n\t\t\t\t\t\t\t\t\t<div class=\"table__col table__col--ornament\">\n\t\t\t\t\t\t\t\t\t\t<h4 class=\"heading\">Sequence I: 0\/0<br>Sequence II: 0\/0<br>Sequence III: 0\/0<\/h4>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"table__col\">\n\t\t\t\t\t\t\t\t\t\t<p class=\"desc\"><li>Sequence I: 600\/370<\/li>\r\n<li>Sequence II: 400\/0<\/li>\r\n<li>Sequence III: 650\/450<\/li>\r\n<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"contact alignwide\">\n  <div class=\"container\">\n    <div class=\"row\">\n\n      <div class=\"offset-lg-2 offset-md-0 col-lg-6 contact__text\">\n\n        \n          <h2 class=\"heading heading--line\">contact<\/h2>\n\n        \n        \n          <h3 class=\"heading heading--large\">learn more about the diagnostic analysis offerings and how they can benefit your company<\/h3>\n\n        \n        \n          <p class=\"desc\">Contact our laboratory<\/p>\n\n        \n      <\/div>\n\n      \n        <div class=\"offset-lg-2 offset-md-0 col-lg-9 tiles__items\">\n\n          \n            <div class=\"tiles__item\">\n              <h4 class=\"tiles__heading heading\">Ecol Oil Analysis Laboratory<\/h4>\n\n              <ul class=\"contact-details\">\n\n                \n                  <li class=\"contact-details__item\"><a href=\"https:\/\/goo.gl\/maps\/uGogqaYTEZs8nE7M9\" target=\"_blank\" rel=\"noopener\">Podmiejska 71A, 44-207 Rybnik<\/a><\/li>\n\n                \n                \n                  <li class=\"contact-details__item\"><a href=\"tel:+48324503111\" class=\"contact-details__link\">+48 32 450 31 11<\/a><\/li>\n\n                \n                \n                \n                  <li class=\"contact-details__item\"><a href=\"mailto:laboratorium@ecol.eu\" class=\"contact-details__link\">laboratorium@ecol.eu<\/a><\/li>\n\n                \n              <\/ul>\n            <\/div>\n\n          \n          \n        <\/div>\n\n      \n    <\/div>\n  <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"The foaming propensity test method is an important tool in analysing and understanding this phenomenon in the context of hydraulic oil and allows a scientific approach to the issue. ","protected":false},"author":3,"featured_media":24228,"template":"","case-study-category":[94],"class_list":["post-24601","case-study","type-case-study","status-publish","has-post-thumbnail","hentry","case-study-category-diagnostic-services"],"acf":[],"image":"https:\/\/ecol.eu\/wp-content\/uploads\/2024\/03\/sek3a.png","category_name":["Diagnostic services"],"_links":{"self":[{"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/case-study\/24601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/case-study"}],"about":[{"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/types\/case-study"}],"author":[{"embeddable":true,"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/users\/3"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/media\/24228"}],"wp:attachment":[{"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/media?parent=24601"}],"wp:term":[{"taxonomy":"case-study-category","embeddable":true,"href":"https:\/\/ecol.eu\/en\/wp-json\/wp\/v2\/case-study-category?post=24601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}