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The International Programme for the Improvement of Working Conditions and Environment (PIACT)
was launched by the International Labour Organization in 1976 at the request of the International Labour
Conference and after extensive consultations with member States.PIACT is designed to promote or support action by member States to set and attain definite objectives
aiming at "making work more human". The Programme is thus concerned with improving the quality ofworking life in all its aspects: for example, the prevention of occupational accidents and diseases, a wider
application of the principles of ergonomics, the arrangement of working time, the improvement of the content and organization of work and of conditions of work in general, and a greater concern for the human element in the transfer of technology. To achieve these aims, PIACT makes use of and coordinates the traditional means of ILO action, including: - the preparation and revision of international labour standards;- operational activities, including the dispatch of multidisciplinary teams to assist member States on
request; - tripartite meetings between representatives of governments, employers and workers, including industrial committees to study the problems facing major industries, regional meetings and meetings of experts; - action-oriented studies and research; and - clearing-house activities, especially through the International Occupational Safety and Health Information Centre (CIS) and the Clearing-house for the Dissemination of Information onConditions of Work.
This publication is the outcome of a PIACT project.Safety in the use
of radiofrequency dielectric heaters and sealersOCCUPATIONAL SAFETY AND HEALTH SERIES No. 71
SAFETY IN THE USE OF
RADIOFREQUENCY DIELECTRIC
HEATERS AND SEALERS
A PRACTICAL GUIDE
Prepared by the International Commission
on Non-Ionizing Radiation Protection in collaboration with the International Labour Organization and the World Health OrganizationINTERNATIONAL LABOUR OFFICE · GENEVA
Copyright © International Labour Organization 1998First published 1998
Publications of the International Labour Office enjoy copyright under Protocol 2 of the UniversalCopyright Convention. Nevertheless, short excerpts from them may be reproduced without authorization,
on condition that the source is indicated. For rights of reproduction or translation, application should be
made to the Publications Bureau (Rights and Permissions), International Labour Office, CH-1211 Geneva 22, Switzerland. The International Labour Office welcomes such applications.Libraries, institutions and other users registered in the United Kingdom with the Copyright Licensing
Agency, 90 Tottenham Court Road, London W1P 9HE (Fax: +44 171 436 3986), in the United States with the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923 (Fax: +1508 750 4470), or in other countries with associated Reproduction Rights Organizations, may make photocopies in accordance with the licences issued to them for this purpose. International Commission on Non-Ionizing Radiation Protection (ICNIRP) ILOWorld Health Organization
Safety in the use of radiofrequency dielectric heaters and sealers: A practical guide Geneva, International Labour Office, 1998 (Occupational Safety and Health Series, No. 71) /Guide/, /Radiation protection/, /Electrical appliance/, /Occupational safety/. 13.04.6ISBN 92-2-110333-1
ILO Cataloguing in Publication Data
The designations employed in ILO publications, which are in conformity with United Nations practice,and the presentation of material therein do not imply the expression of any opinion whatsoever on the
part of the International Labour Office concerning the legal status of any country, area or territory or of
its authorities, or concerning the delimitation of its frontiers.The responsibility for opinions expressed in signed articles, studies and other contributions rests solely
with their authors, and publication does not constitute an endorsement by the International Labour Office
of the opinions expressed in them. Reference to names of firms and commercial products and processes does not imply their endorsementby the International Labour Office, and any failure to mention a particular firm, commercial product or
process is not a sign of disapproval.ILO publications can be obtained through major booksellers or ILO local offices in many countries, or
direct from ILO Publications, International Labour Office, CH-1211 Geneva 22, Switzerland. Catalogues
or lists of new publications are available free of charge from the above address.Printed in Switzerland SCAN/ART
Preface
This publication is one of a series of practical guides on occupational hazards arising from non-ionizing radiation (NIR) carried out in collaboration with the International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1 as part of the ILO International Programme for the Improvement of Working Conditions andEnvironment (PIACT).
The purpose of this book is to provide basic guidance on working conditions and procedures that will lead to higher standards of safety for all personnel engaged in the operation and use of radiofrequency (RF) dielectric heaters and sealers. It is intended in particular for the use of competent authorities, employers and workers, and in general all persons in charge of occupational safety and health. The following topics are covered: RF and electromagnetic radiation, sources, exposure and energy absorption, RF biological effects, occupational RF exposure standards and guidelines, exposure assessment, control technology, work practices and administrative controls, design and installation considerations, and medical surveillance.Emphasis is placed upon protective measures.
The manuscript was prepared by an ICNIRP working group chaired by Mays L. Swicord and including Stuart Allen, Howard Bassen, David Conover and Robert Curtis. Following comments received from ICNIRP members, it was reviewed in detail during the annual meeting of the ICNIRP in Rockville, Maryland, in June 1995. The book is the result of an ILO/ICNIRP activity in collaboration with the WHO, and is published by the ILO on behalf of the three organizations. The ILO wishes to thank the ICNIRP, and in particular Dr. Swicord and his working group, for their contribution and cooperation in the preparation of this practical guide on safety in the use of RF heaters and sealers. The ICNIRP secretariat may be contacted c/o Dipl.-Ing. R. Matthes, Bundesamt Oberschleissheim, Germany; tel.: +49 89 31603288; fax: +49 89 3160289. 1 The ICNIRP was established in May 1992, and has responsibility for NIR protection in thesame way as the international Commission on Radiological Protection (ICRP) has for ionizing radiation.
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