tailieunhanh - Health Aspects of Plumbing

This publication describes the processes involved in the design, installation, and maintenance of modern plumbing systems. It recommends a number of plumbing system design and installation specifications that have demonstrated their validity from years of experience. It also examines the microbiological, chemical, physical and financial risks associated with plumbing, and outlines the major risk management strategies that are used in the plumbing industry. The book also emphasizes the importance of measures to conserve supplies of clean water. This work is dedicated to assisting developing countries in achieving the best possible plumbing levels to ensure the highest health benefits from use. | HEALTH ASPECTS OF PLUMBING B World Health iF Organization WHO Library Cataloguing-in-Publication Data Health aspects of plumbing. Published jointly by World Health Organization and World Plumbing Council. I. Water supply. 2. Water treatment. 3. Waste disposal Fluid. 4. Sanitary engineering. 5. Guidelines. I. World Health Organization. II. World Plumbing Council. ISBN 92 4 156318 4 ISBN 978 92 4 156318 5 NLM classification WA 675 World Health Organization 2006 All rights reserved. Publications of the World Health Organization can be obtained from WHO Press World Health Organization 20 Avenue Appia 1211 Geneva 27 Switzerland tel 41 22 791 3264 fax 41 22 791 4857 email bookorders@ . Requests for permission to reproduce or translate WHO publications - whether for sale or for noncommercial distribution - should be addressed to WHO Press at the above address fax 41 22 791 4806 email permissions@ . The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country territory city or area or of its authorities or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. The mention of specific companies or of certain manufacturers products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted the names of proprietary products are distinguished by initial capital letters. All reasonable precautions have been taken by WHO to verify the information contained in this publication. However the published material is being distributed without warranty of any kind either express or implied. The responsibility for the interpretation and use of the material lies with the reader. In no