epa method 1664 Articles

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Performance Studies Testing GRO, DRO and TPH in Water Case Study

by Sitelab Corporation  (May 1, 2014)

Oil in Water Performance Studies Sitelab's UVF-3100 analyzer was evaluated by testing 'whole volume' NELAC certified water samples provided by Environmental Resource Associates (Arvada, CO).  ERA is a leading manufacturer of quality control and proficiency testing standards sold to environmental laboratories around the world.  The ...

Total Petroleum Hydrocarbons in soil with crude or waste oil case study

by Sitelab Corporation  (May 1, 2014)

The following case studies illustrate the performance generated from customers who have used Sitelab’s UVF-3100 analyzer for testing Total Petroleum Hydrocarbons (TPH). This analysis is most commonly used when soil, sediments or water is contaminated by waste oils, lubricating oils or crude oils. Sitelab’s TPH-Oil calibration kit is ...

Will the equipment match the regulatory method?

by Wilks - A Spectro Scientific Company  (Aug. 1, 2012)

Anyone involved in field analysis of oil in water will con tinually get the question "Does your equipment match the regulatory method?" Zj While the amount of oil in water is highly regulated, it can also be a challenging measurement. It is complicated by the fact that oil comes in many forms and the measurement is defined by the particular ...

Maintaining regulatory method compliance while automating oil and grease analysis

by Horizon Technology, Inc.  (Nov. 10, 2013)

Regulatory compliance is at the heart of environmental analyses throughout the world. While some regulatory systems provide more flexibility in the methodology used for measuring contaminants, the goal is to gain reliable information that can be used for decision-making. Oil and grease measurement is a simple and important measurement of water ...

Factors Affecting Oil in Water Testing Methods

by Wilks - A Spectro Scientific Company  (Feb. 4, 2013)

Various factors need to be considered when comparing methods to measure oil and grease in water.  Whether you are trying to meet effluent limits for an NPDES (National Pollutant Discharge Elimination System) permit, comply with oil and grease limits for the Clean Water Act (CWA), or an industry satisfying a POTW’s (Publically Owned ...

Emulsion breakingtechniques for oil in water solvent extractions

by Wilks Enterprise, Inc.  (Apr. 22, 2014)

Certain types of samples, such as those containing detergent, may form emulsions when doing an oil in water extraction into a solvent. The boundary between the solvent and the sample will have an emulsion layer that lias a cloudy or milky appearance as shown in tlris photo. According to U.S. EPA Method 1664, "if the emulsion is greater than ...

Will your oil in water analysis method match the regulatory method?

by Wilks - A Spectro Scientific Company  (Jun. 20, 2012)

Anyone involved in field analysis of oil in water will continually get the question “Does your equipment match the regulatory method?” While the amount of oil in water is highly regulated -- it can also be a challenging measurement. It is complicated by the fact that oil comes in many forms and the measurement is defined by the ...

Oil & Grease applications notes

by Horizon Technology, Inc.  (Nov. 10, 2013)

EPA Method 1664A & 1664Bwas developed to determine the precise amount of n-Hexane Extractable Material (HEM) and Silica Gel Treated n-Hexane Extractable Material (SGT-HEM) that exist within a water sample. The HEM or SGT-HEM that is extracted contains a mix of various hydrocarbons usually residing within the semi-volatile range with a ...

Matching oil in water analyses with regulatory methods

by Wilks Enterprise, Inc.  (Mar. 1, 2013)

While the amount of oil in water is highly regulated, it can also be a challenging measurement. It is complicated by the fact that oil conies in many forms and the measurement is defined by the particular regulatory method. When EPA 1664 is the regulatory method, the "oil" is anything that is extracted into hexane and remains after the hcxanc has ...

Comparing Oil in Water Analysis Methods

by Wilks - A Spectro Scientific Company  (Jun. 19, 2012)

Wilks Enterprise has published a new White Paper that discusses various oil in water methods and their correlation with regulatory methods. While the amount of oil in water is highly regulated -- it can also be a challenging measurement.  It is complicated by the fact that oil comes in many forms and the measurement is defined by the ...

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