Pamphlet on insulation testing

A special reprint pamphlet has recently been issued by the A. S. T. M. covering the testing of insulating materials. It contains all of the methods of testing insulating materials prepared by the Society´s committee, as well as the annual report of the committee presented at the June meeting. In addition it contains some few specifications prepared by other committees of the society of interest to electrical insulation matters and provides a handy reference for persons interested in the most recent methods of testing insulating materials; approximately 200 pages. Price $1.25.