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Coastal Response Research Center and Center for Spills and Environmental Hazards

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Response Oil Assay Working Group 2: Interlaboratory evaluation of methods for measuring properties of petroleum products

 

This group will be focused on assessing how existing methods for measuring basic oil properties vary between labs, and how this variation makes a difference for emergency response decision-making and response modeling. 

 

Proposed Activities:

  • Compare methods that different labs use to measure each physico-chemical property they wish to examine, and see how qualitatively similar they are. If the methods are fairly similar then the group could compare how each method performs in terms of various QA/QC measures. 
  • If labs have already conducted analyses of similar materials (such as Alaska North Slope crude or MC252), then an interlaboratory comparison could be done by evaluating the existing data. If extra funding or materials are obtained in the future, then a new interlaboratory comparison could be done by sending the same material to each interested lab to perform a round-robin test.
  • We would like to examine methods to measure properties that are important for first responders and modelers to know within the first day after an oil is spilled (e.g. those included in the Responder’s Data Sheet), as well as methods for artificially weathering oil and for measuring the behavior of oil in the environment. 

Expected Outcomes:

  • A report or series of reports presenting the results of the property-by-property methods comparison, written in a way that will be useful to oil spill responders and those supporting their work such as hazard assessment teams and response modelers. 

  • An ideal outcome would be to identify a “best” method for each property that the response community wishes to include in the Responder’s Data Sheet (Working Group 3) and possibly other properties, and to promote this set of methods as the Response Oil Assay.

Final outcome documents:

Adsorption (Sedimentation)

Aliphatics (DHA)

Biodegradation

Density

Dispersion

Dissolution

Emulsion Preparation

Evaporation and Preparation of Evaporatively Weathered Samples

Flash Point

H2S-Light Mercaptons

Interfacial Tension

Meso-Scale Weathering Testbeds

Metals

PAH

Photooxidation

Physical Distallation

Pour Point

SARA

Sediment Content (no submission)

Simulated Distllation

Spreading

Vapor Pressure

Viscosity

VOCs (BTEX)

WAF, CEWAF

Water Content (Crude Emulsion)

Wax

 

 

Participants in Working Group 2:

Dalina Thrift-Viveros, NOAA OR&R ERD, Project Lead

Nancy Kinner, Coastal Response Research Center

Benedette Adewale, USCG R&D Center

David Cooper, SL Ross Environmental Research Ltd

Tom Coolbaugh, (ExxonMobil) Ohmsett

Per Daling, SINTEF

Heather Dettman, Natural Resources Canada

Faith Fitzpatrick, U.S. Geological Survey

Julien Guyomarch, Cedre

Ajae Hall, Natural Resources Canada

Robert Jones, NOAA OR&R ERD

Manoj Kamalanathan, Texas A&M University at Galveston

John Kucklick, National Institute of Standards and Technology

Fatemah Mirnaghi, Environment and Climate Change Canada

Tim Nedwed, ExxonMobil

Ed Overton, LSU

Paul Panetta, Applied Research Associates

Emily Pisarski, NOAA, NCCOS

Karen Stone, BSEE

Lyman Young, Chevron

 

 

 

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