1:35     The Benefits of Reference Materials Producer Accreditation  RANDALL V QUERRY, A2LA

2:00     Proficiency Testing for Air and Emissions Laboratories  CURTIS J WOOD, ERA

2:25     The Analysis of Biodiesel for Trace Metals and the Development of Certified Biodiesel Standards  THOMAS M RETTBERG, VHG Labs, Inc., Susan J Norris

2:50     Recess

3:05     Reference Standards for Pharmaceutical Analysis: Challenges in Addressing Compendial vs. ISO Requirements  ALAN NICHOLS, RTC

3:30     Analysis of RoHS Directive Elements in Plastics  RALPH OBENAUF, Spex Certiprep, Vanaja Shivakumar, Laszlo Ernyei

3:55     Analytical Challenges of USEPA Method 535  RUSS COOPER, AccuStandard, Inc.

4:20     Challenges for pH Reference Materials  KENNETH W PRATT, National Institute of Standards and Technology