ALS Tribology eSource
January 24, 2011
January eSource

Training ImageMonitoring Oil Oxidation
by David Doyle, CLS, OMA I & II
Vice President & Operations Manager

There are several schools of thought regarding determination of oxidation for in-service industrial lubricants. The most common routine tests for monitoring oxidation are viscosity, acid number, and oxidation number by infrared spectroscopy (FTIR). Of these tests, individuals will have varying opinions as to what tests give the best value. Some opinions contend that monitoring the increase in acid number gives you the most reliable monitoring tool. Other individuals hold to the view that oxidation number by FTIR is your only reliable monitoring tool. There is also the view that as long as viscosity is not increasing there is no problem.

The best answer to these varying opinions is: none of the above AND all of the above. When considering viscosity, acid number, and oxidation number, no single test parameter is definitive for establishing the level of oxidation in industrial lubricants. A combination of test parameters and evaluation of the overall effect shown by multiple tests provides the most reliable analysis of the rate of oxidation. To some extent, these tests can also be correlated with monitoring color change of the lubricant, where severe darkening of the oil would associated oxidation indicate by other tests. By comparing the changes in a matrix of tests the various factors that contribute to different analysis results due to oxidation give a better overall picture. More . . . .


UIN SampleWhat Is The UIN Number That Shows Up On My Report?

Many of your reports will show a number identified as UIN, which is an acronym for Unique Identification Number. The UIN is different than the Lab Number on your reports. Displayed as a seven-digit, alpha-numeric reference number, the UIN assigned by the laboratory uniquely indentifies your equipment in the ALS computer base. Since this identifier is compartment based and not unit based, each compartment within a unit with multiple compartments will have its own UIN. This identifier never changes and will follow a compartment for the entire life of the equipment.

By entering the UIN on your sample information form, our sample entry personnel can quickly access your equipment information for processing when a sample arrives. The UIN ensures consistency with equipment identification and streamlines the process for entry of your samples. The UIN is the best way to reference a compartment when submitting a sample or when making inquiries to the lab, customer service, etc.—thus its prominence on the report. You can find your equipment's UIN number on printed reports and on our online, web-based reports.


Atlanta StormALS Sample Processing Affected by Rare Winter Storm in Atlanta, Georgia

The Atlanta, Georgia, area recently experienced what is for them a series of rare winter storms. Our employees did their best to keep the Atlanta lab open and running during the storm. However, due to icy road conditions, the lab did experience some downtime, and some sample deliveries to the lab were delayed.

The lab is now operating at full capacity and working diligently to eliminate the backlogs caused by the inclement weather and to ensure that all samples are processed as quickly as possible. We thank our Atlanta customers for their patience and understanding and hope that they experienced minimal impact as a result of the temporary disruption in service.

If you submitted samples to the Atlanta laboratory during this time and have questions about receipt or processing, please contact our Atlanta customer service department at 800-394-3669.


Training2011 One-Day Training Program Guide and Schedule Now Available

ALS Tribology is offering a series of training workshops that will be conducted in our laboratories conveniently located across the U.S. and Canada. Participants will gain the knowledge and skills necessary to improve the oil, fuel, coolant, and condition monitoring sectors of their in-house maintenance programs.

These one-day courses are specifically designed for maintenance professionals, lubrication and maintenance engineers, plant technicians, tradespeople and fitters, and other condition monitoring personnel. Limited to just 10 participants, the small class sizes allow interaction with our expert trainers and other maintenance professionals. All workshops include training materials, lunch, and a tour of the local ALS laboratory.

Download our 2011 Training Program Guide for more information and to view the workshop schedule. The registration form is available on the back of the program guide.

Registration is on a first-come, first served basis, so register early to secure a spot in the workshop of your choice!


ALS Tribology

Who We Are

ALS Tribology is one of the leading fluid analysis groups in North America. For nearly half a century, customers have relied on us for comprehensive oil, fuel, coolant, metalworking, and consulting services. As part of the ALS Group, we are a global provider of analytical testing services.

ALS Tribology offers standard analysis packages and over 100 specialized ASTM tests that cover any combination of conditions, fluids, and applications. Our highly trained and experienced professionals are committed to providing unmatched services with quality results that are cost effective and prompt. Strategically located, ALS Tribology's facilities provide regional access to testing services throughout the United States, Canada, and globally.

Telephone: (877) 835-8437

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