Duplicate samples at -40°C were measured in a Model 76 Liquid Programmable Bath. Of the 56 samples, the average variability between the duplicate samples was ±1.13% of mean. This compares very favorably to the method’s stated precision of 11.8%. The key factor in this improved precision is the superior temperature control of the sample as its viscosity is being measured.
Model LB-76 Programmable Liquid Bath is a bench top model has a single bath with 10 sample capacity. A Windows based PC is required (not supplied). The bath is supplied with an integral leveling viscometer support rod.