he workshop on high-temperature guarded-hot-plate and pipe measurements was held on March 19-20, 2012 at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland, USA. The workshop was co-sponsored by the ASTM International Subcommittee C16:30 on Thermal Measurement and by the National Institute of Standards and Technology. This was the second workshop in a series that specifically focused on the needs of operators conducting these types of measurements.