Excerpt from Publications of the National Bureau of Standards, 1972 Catalog: A Compilation of Abstracts and Key Word and Author Indexes Handbooks - recommended codes of engi neering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organiza tions, and regulatory bodies. 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.