  Regular large-scale polarimetric observations in Crimean astrophysical
observatory began in the early 1960s. In 2002 - 2017 the single-channel
aperture photometer-polarimeter with a quarter-wave plate at the 2.6-m Shajn
mirror telescope (SMT) was used. We accumulated a large homogeneous data set of
polarimetric observations of different types of objects that are to be
published separately. Correct polarimetric data processing requires high
polarization standards and zero-polarization stars. We aim to improve the data
reduction and calibration process to obtain further results with highest
possible accuracy. High time resolution broad-band (WR, R, V, B, U)
polarization observations are made of 98 known standard stars (527 time series
with total duration about 184 hours). We determined values of linear and
circular polarization for 98 nearby Northern bright stars. This catalogue is
not compilative, but obtained using the same instrument and technique during
large time interval. It will be used for our future research and it may be used
by other authors. We implemented the least squares approach for determination
of the Stokes parameters. It allowed us to obtain results with the accuracy
better then we obtained using previously used methods. We report suspicious or
variable stars that are not suitable as standards for high precision
polarimetry.
