Detailed analysis of internal friction data of silicate & phosphate glasses (frequencies of about 1 Hz) was done in comparison with calculated temperature positions expected from the characteristic times of ageing which resulted from previously systematisation of alkali-containing silicate glasses. As basis suggested for such comparison is the validity of secondary relaxation mechanism at high-temperature mechanical relaxation to that for ageing kinetics at room temperature. In almost all cases, relaxation times for the ageing process fit the distribution of relaxation times for internal friction. Thus, the B-relaxation maximum (internal fiction) may be considered as overlapping 4 narrow spectral components, at least. Characteristic times for ageing, contrary to continuous distribution for the mechanical relaxation, are discrete.
