Excerpt from Practical Testing of Raw Materials: A Concise Handbook for Manufacturers, Merchants, and Users of Chemicals, Oils, Fuels, Gas Residuals and Bye-Products, and Paper Making Materials, With Chapters on Water Analysis and the Testing of Trade Effluents Tiie publication of this manual of practical testing is not an attempt to Offer a substitute for the many valuable standard works on chemical analysis which are already in existence. The needs of the analytical chemist are well supplied. He has access to a whole library of well-written and well-authenticated text books on every department of chemical knowledge, and it would be mere presumption to Offer anv substitute for the recognised standard works of reference. 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.