TOKI SANGYO sells standard fluids for viscometer calibration conforming to the JIS Z 8809 viscometer calibration fluid standard. Viscosity values of the fluids are certified (with values) by the National Institute of Advanced Industrial Science and Technology and the fluids are supplied with test certificates. Temperature-viscosity computation tables, in 0.1°C increments, are also attached. These fluids are utilized as viscosity measurement criteria and help to improve the accuracy of viscosity measurement.