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Excerpt from Federal Motor Vehicle Safety Standards and Regulations: With Amendments and Interpretations Corex D filter with a plain soda-lime glass filter in an attempt to create a similar, adequate testing for both nylon and polyester webbing material used in seat belt assemblies. Responses to that notice indicated that the proposed plain soda-lime glass filters were cracking either during the test cycle, due to the intense heat emitted during the 100 hours of test time, or after the test period, during the cool down of the equipment. 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.