NATIONAL ACADEMY PRESS
2101 Constitution Avenue, N.W. Washington, D.C. 20418

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competencies and with regard for appropriate balance.

This study was supported by the U.S. Department of Energy, Office of Industrial Technologies, and the National Institute of Occupational Safety and Health, Grant No. DE-AM01-99PO80016. The views and conclusions contained in this document are those of the authors and do not necessarily reflect the view of the Department of Energy or the National Institute of Occupational Safety and Health. .

International Standard Book Number: 0-309-07340-5

Library of Congress Catalog Card Number: 2001088181

Copies are available for sale from:
National Academy Press
2101 Constitution Avenue, NW Washington, DC 20418 800-624-6242 202-334-3313 (in the Washington metropolitan areas) http://www.nap.edu

Copies are available in limited supply from:

Board on Manufacturing and Engineering Design

2101 Constitution Avenue, NW

Washington, DC 20418

202-334-3505 bmaed@nas.edu

Cover:

Copyright 2001 by the National Academy of Sciences. All rights reserved.

Printed in the United States of America



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement