Spectro Scientific Blog

Techniques for Oil in Water Analysis

Posted by Augustus Kaskons on September 23, 2016


The people responsible for conducting oil in water measurements understand that the measurement can be quite challenging. Wastewater from different sources can contain many different types of hydrocarbons, each with different chemical make-ups. On top of the lack of chemical uniformity in different oils, there has been a large variety of methods developed to quantify the oil in the wastewater. While none of the following methods is perfect, each will have its own advantages and disadvantages for oil in water analysis.Oil in water analysis is a global issue that crosses many industries, analytical methods, and regulatory agencies. Due to the negative effects of oil on the environment, there are strict limits on the amounts of oil allowed in water. Failure to meet these limits can lead to heavy fines. While any industry that discharges produced water needs to test for oil in water, their specific needs can differ from industry to industry. The petroleum industry is most concerned with measuring Total Oils and Grease (TOG) in both their upstream and downstream wastewater. For industrial pretreatment of wastewater, public water treatment plants, and most other nonpetroleum industries discharging produced water, it is most important to test for Fats, Oils and Grease (FOG) in their effluent. FOG differs from TOG in that it tends to contain large amounts of animal and vegetable components in the oil. FOG can be especially concerning in effluent streams because it can lead to clogged sewer lines which causes Sanitary Sewer Overflows (SSOs).


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Guide for Measuring Fuel Dilution in Lubricating Oil

Posted by Augustus Kaskons on September 16, 2016

Fuel dilution in oil can cause serious engine damage. High levels of fuel (>2%) in a lubricant can result in decreased viscosity, oil degradation, loss of dispersancy, and loss of oxidation stability. Fuel dilution is one of the most important lubricant failure modes in internal combustion engines. It usually occurs due to improper fuel-to-air ratio. Fuel dilution can also occur due to excessive idling, piston ring wear, or defective injectors and loose connectors.

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Measuring Oil Chemistry: Nitration, Oxidation, and Sulfation

Posted by Augustus Kaskons on September 09, 2016

An in-service lubricant encounters air, heat, pressure, corrosive agents, and other factors that cause chemical changes in the oil. A change in oil chemistry can affect the ability of the lubricant to do its job (for example if crucial additives have been depleted). Over time, these chemical reactions can result in build-up of harmful degradation by-products like weak organic acids. Oil chemistry analysis always includes oxidation and may also include nitration and sulfation depending on the application. In some cases, oils may also be tested to check for the depletion of specific additives, like a ZDDP antiwear package.

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Using Spectroscopy for Used Oil Analysis

Posted by Augustus Kaskons on September 02, 2016

Evaluating the wear condition of equipment is a primary requirement of condition monitoring programs. Oil wetted equipment will generate wear particles throughout its lifetime, the nature and rate of the wear varies from initial break in through to end of life seizure. The technique employed to detect wear and its severity is spectroscopy. Spectroscopy is a technique for detecting and quantifying the presence of elements in a material. Spectroscopy utilizes the fact that each element has a unique atomic structure. When subjected to the addition of energy, each element emits light of specific wavelengths, or colors. Since no two elements have the same pattern of spectral lines, the elements can be differentiated. The intensity of the emitted light is proportional to the quantity of the element present in the sample allowing the concentration of that element to be determined. Typically these techniques get their names from the method used to excite the elements.

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Intellectual Property at Spectro Scientific

Posted by John Morgan on August 09, 2016

Not only was Abraham Lincoln the 16th President of the United States of America, but he was also a patent attorney and a patent holder. Lincoln holds US patent #6,469 "Buoying Vessels Over Shoals". This patent describes a method of increasing the buoyancy of vessels through the use of inflatable bladders to guide them over, or free them from shoals or shallow waters.

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E-Guide for Measuring Oil Viscosity

Posted by Augustus Kaskons on July 27, 2016

The most important physical property of a lubricating oil is viscosity. It determines the load carrying ability of the oil as well as how easily it circulates. The correct balance between high viscosity for load carrying and low viscosity for ease of circulation must be considered for any lubricant and its application. Oil provides benefits in addition to lubrication, and it is vital that it be able to flow under all conditions. When in use, contaminants such as water, fuel entering the oil, oxidation, and soot all affect the viscosity. Therefore viscosity measurement is one of the more important tests for oil in a mechanical system. For machine condition monitoring, kinematic viscosity, defined as the resistance to flow under gravity, is the established method.

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Measuring TAN and TBN in Oil Samples

Posted by Augustus Kaskons on July 19, 2016

Monitoring TAN and TBN is an important test for measuring lubricant condition. There
are several methods available ranging from expensive laboratory methods to quick field
tests. In a laboratory setting, methods are chosen based on the highest accuracy and
repeatability that can be achieved with a decent throughput. Out in the field, it is most
important to get a trustworthy result quickly enough that preventative or corrective
maintenance action can be taken before major equipment failure. The best method to
use depends on the application need.

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Eliminate Degassing When Measuring Viscosity of Compressor Oils

Posted by Daniel Walsh on June 08, 2016

Compressor oils can create unique challenges when trying to measure viscosity. Dissolved gases from refrigerants, in particular, tend to bubble out when these oils are measured using traditional viscometers. This can create errors in the measurement, typically causing readings to be much lower than they should be. 

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Our Q2 Newsletter

Posted by John Morgan on May 12, 2016

Welcome to the second edition of Specto Scientific's quarterly newsletter, The Monitor. In this newsletter we will present a variety of topics for our valued customers, partners and prospects. Content will range from industry trends and application solutions to case studies and e-guides. We'd love to hear your ideas for making this communication a useful and meaningful tool. If you have a success story you'd like to share, or a topic you'd like to read about in future issues, please let us know. Happy Monitoring!!


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Guide to Measuring Particles in Oil

Posted by Daniel Walsh on May 02, 2016

Particle counting is a critical aspect of any machine conditioning program and
there are many tools out there available to monitor and track the quantity and
severity of the contamination, be it due to external contamination or machine

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