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Fluid Analysis Testing From Dow
Dow inhibited glycol fluids have set the HVAC industry standard for freeze protection and heat transfer for over 80 years. As the nation’s largest glycol producer, with over 90 stocking locations in North America alone, they are equipped to help meet your evolving needs. This article covers testing for the below glycol products from Dow:
Sample Analysis Program Requirements
To help ensure that corrosion and freeze protection are maintained in customer systems, Dow offers a fluid analysis service to qualified customers. It is designed to assure the long-term performance of Dow glycol-based heat transfer fluids and to help minimize replacement fluid requirements, system maintenance, and repair costs. Dow's Customer Service Laboratory provides a free annual fluid analysis for customers having a system size greater than or equal to 250 gallons of thermal fluid concentrate.
Dow provides the testing service for a fee of $200.00 per sample to any customer who system does not meet the minimum fluid requirement.
Typically performed on an annual basis, the analysis includes measurement of the ethylene or propylene glycol concentration, pH, reserve alkalinity, inhibitor levels, water condition, and contaminants (chloride, sulfate, nitrate, and total hardness), as well as a visual inspection of the fluid for color, clarity, and sediment.
Dow has a complementary Thermal Fluids Sampling Kit for customers who have purchased Dow fluids. This kit permits easy and accurate labeling of fluid samples and safe shipment of samples to Dow for analysis. If you have purchased from Go Glycol Pros in the past, you may request your free kit here.
How the Service Works
After the system has been filled and circulated for 24 hours, an initial four-ounce sample should be withdrawn and sent to Dow using one of the Thermal Fluids Sampling Kits. Remember to closely follow the sampling instructions. Proper sampling is essential to ensure meaningful assessment of the fluid condition.
Approximately two to three weeks after the sample is received by Dow, a report will be sent to you, via e-mail, or fax, detailing the results of the analysis plus any recommendations.
Prior to Sampling
Prior to sampling, the system fluid will not separate nor will the inhibitors drop out of solution upon standing, however it is recommended to obtain a sample from a well-mixed system to assure a representative sample.
The sample should not be taken from a point of low flow, where accumulated solids would not be representative of the general condition of the system fluid.
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Reference Source: Dow Customer Service
MEET THE PRO: MARK FINE
Mark graduated from Lawrence Technological University with a Bachelor of Science in Mechanical Engineering. He takes pride in his work and values the close ties with his customers. Mark is supported by his wonderful wife, Lisa and his beautiful children Kailee, Joshua and Jessica. For pleasure, he enjoys boating, golfing, concerts and trips with his family.
Go Glycol Pros is a distributor of DOW® heat transfer fluid for over 20 years. We sell glycol online with no accounts or order minimums required. Available in 275 gallon tote, 55 gallon drum or 5 gallon pail, high purity DOW antifreeze is premixed with deionized water (DI water) at our in-house facility and ships out within just one business day. Our inhibited glycols include: DOWFROST HD propylene glycol, DOWFROST food grade propylene glycol and DOWTHERM SR-1 ethylene glycol.
Explore more helpful tips and advice at goglycolpros.com. Our knowledgeable glycol experts are ready to help you with your latest hydronic HVAC project.
Disclaimer: Go Glycol Pros and it’s affiliates can not be held liable for issues caused by use of the information on this page. While the- information comes from many years of experience and can be a valuable tool, it may not take into account special circumstances in your system and we therefore can not take responsibility for actions that result from this information. Please feel free to contact us if you do have any questions.