In the course of its everyday work, Rapra receives many enquiries from member companies on specific problems related to chemical resistance. In dealing with these enquiries use is made of published charts and tables which indicate, in general terms, which plastics or rubbers, are likely to resist a given fluid. The previous Chemical Resistance Data Sheets published only quantitative assessments of chemical resistance. Whilst it is true that quantitative assessments themselves can, on occasion, be misleading, it was felt that, in the absence of first-hand experience, this was the best type of information available at the time. Это и многое другое вы найдете в книге Chemical Resistance Data Sheets, Volume One