Areas of Interest: Mark O. McLinden, Ph.D., Research Chemical Engineer NIST (NBS) 1984 - present 60 publications, 1 patent Energy and Environmental Sciences: development and properties of environmentally benign refrigerants Measurement Standards: density standards Instrument Development: density, sound speed Areas of Expertise email:        mark.mclinden@nist.gov webpage:  http://www.nist.gov/mml/acmd/fluids_properties/mclinden.cfm Experimental Properties of Fluids Group 325 Broadway, Boulder, CO 80305               Speakers from the Experimental Properties of Fluids Group                                                            - developing communication, interaction and collaboration http://www.nist.gov/mml/acmd/fluids_properties National Institute of Standards and Technology