Excerpt from Standards on Noise Measurements, Rating Schemes, and Definitions: A Compilation Iso Draft International Standard 2249. Acoustics Description and Measurement of Physical Properties of Sonic Booms. Iso Draft International Standard 2880. Determination of Sound Power Emitted by Stationary Noise Sources in Reverberation Rooms. Part I: Broad Band Noise Sources. Iso Draft International Standard 2922. Measurement of Noise Emitted by Ships on Inland Waterways. Iso Draft International Standard 2923. Measurement of Noise on Board Vessels. Iso Draft International Standard 2946. Determination of Sound Power Emitted by Stationary Noise Sources in Reverberation Rooms. Part II: discrete-frequency and narrow-band Noise Sources. Draft Proposal for Laboratory Tests on Noise Emissions by Appliances and Equipment in Water Supply Installations. Draft Proposal for Sound Measurement Procedure for Air Moving Devices Connected to Either a Discharge Duct or an Inlet Duct. Draft Proposal for a Guide to the Evaluation or Assessment of Noise. Draft Proposal for Determination of Sound Power Emitted by Stationary Noise Sources. Part IV: Engineering Methods Appropriate for free-field Conditions over a Reflecting Plane. 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.