Methods in Selecting Best Values
Multiple-point property values through
 Weighted-average-value method (WAV)
 Estimated uncertainty
 Publication year
 Sample  purity
 Experimental objective
One- or two-point property value through
 Measurement-related factors (sample purity, methods,
   instruments control)
 Characters of the compound (stability, temperature)
 Similar structures
 Critically reviewed and newly developed models
 Reliable data sources