Absolute intensive thresholds are presented from 26 men yielding Békésy audiograms at 20 frequencies. Results validate the practice of graphic interpolation between thresholds in octave steps to predict mean thresholds at half octave points. Thresholds are almost indistinguishable from those by conventional audiometry in a very similar population. Data are interpreted to confirm in general the practicability of using the proposed 1964 ISO reference threshold level as the norm for young otoscopically negative adults.