Excerpt from Guidelines for Realizing the International Temperature Scale of 1990 (Its-90) International Temperature Scale of 1990 Reproduction of article by B. W. Mangum, entitled Special Report on the International Temperature Scale of 1990; Report on the 17th Session of the Consultative Committee on Thermometry, published in J. Res. Natl. Inst. Stand. Technol. 95, 69-77 (1990) About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.