IPHAS (the INT/WTC Photometric Ha Survey of the Northern Galactic Plane, www.iphas.org) is a survey carried out, in H-α, r and i filters, with the Wide Field Camera on the Isaac Newton Telescope in La Palma. Besides the photometric survey, the IPHAS collaboration is conducting follow up spectroscopic observations of selected emission line objects detected from the photometry. Most of the observed targets turned out to be classical Be stars. In this work we present the analysis of about 60 classical Be stars spectra, obtained with the INT and NOT telescopes in La Palma, by means of the BCD (Barbier-Chalonge-Divan) classification system. We have developed a semi-authomatic procedure, based on the BCD techniques, to obtain the physical parameters of classical Be stars, including effective temperature, luminosity class, interstellar reddening and absolute magnitude. We compare our results with those obtained for the same stellar sample with standard spectroscopic techniques by Raddi et al. (MNRAS, in press), in order to validate our procedure. Our final goal is to apply our technique to a much larger sample of Be star spectra through the northern galactic plane, in order to obtain their physical parameters and use them to trace the galactic structure.