scope:

This standard gives specifications and operating instructions for glass capillary kinematic viscometers of all the types described in detail in Annex A1, Annex A2, and Annex A3 as follows:

Modified Ostwald viscometers, Annex A1

Suspended-level viscometers, Annex A2

Reverse-flow viscometers, Annex A3

The calibration of the viscometers is described in Section 6.

This standard covers some widely used viscometers suitable for use in accordance with Test Method D 445. Other viscometers of the glass capillary type which are capable of measuring kinematic viscosity within the limits of precision given in Test Method D 445 may be used.

The values stated in SI units are to be regarded as the standard.