1、Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-IICRC Reference Guide for Professional Mold Remediation (IICRC S520) 1DisclaimerThis Standard and Reference Guide (S520) is inten
2、ded to provide information about the remediation of mold-damaged structures and contents and to assist individuals and entities working in the mold remediation industry in establishing and maintaining their professional competence. Users of this document must keep abreast of the rapid developments i
3、n the field of mold remediation, implement changes in technology and procedures as appropriate and follow applicable federal, state, provincial and local laws and regulations. All mold remediation projects are unique and in certain circumstances, common sense, experience and professional judgment ma
4、y justify a deviation from this Standard and Reference Guide. This Standard and Reference Guide was developed through a consensus standard development process, which brought together volunteers representing varied viewpoints and interests to achieve consensus on mold remediation issues. While the In
5、stitute of Inspection, Cleaning and Restoration Certification (IICRC) administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate or verify the accuracy of any information or the soundness of any judgments contained in t
6、his Standard and Reference Guide. The IICRC, and all S520 committee members, contributors and editorial consultants (hereinafter collectively referred to as the “IICRC”) expressly disclaims, and shall not be liable for, any and all damages of any nature whatsoever, whether direct or indirect, arisin
7、g from or relating to the publication, use of or reliance on the information contained in this Standard and Reference Guide, including without limitation any and all special, indirect, incidental, compensatory, consequential, punitive or other damages (including damages for personal injury and/or bo
8、dily injury, property damage, loss of business, loss of profits, litigation or the like), whether based upon breach of contract, breach of warranty, tort (including negligence and gross negligence), product liability or otherwise, even if advised of the possibility of such damages. The foregoing neg
9、ation of damages is a fundamental element of the use of the information contained in this Standard and Reference Guide and this document would not be published without such limitations. The IICRC makes no representations, warranties or guarantees as to the accuracy or completeness of any information
10、 contained in this Standard and Reference Guide or the compliance with any applicable statutes, laws, rules or regulations. All warranties, express or implied, are disclaimed, including without limitation, any and all warranties concerning the accuracy or completeness of the information, its fitness
11、 or appropriateness for a particular purpose or use, its merchantability and its non-infringement of any intellectual property rights.In publishing this document, the IICRC is not undertaking to render scientific, professional, medical, legal or other advice or services for or on behalf of any perso
12、n or entity or to perform any duty owed by any person or entity to someone else. Any and all use of or reliance upon this Standard and Reference Guide is at the users own discretion and risk. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the a
13、dvice of a competent professional in determining the exercise of reasonable care in any given situation. The IICRC has no power, nor does it undertake, to police or enforce compliance with the contents of this document. The IICRC does not list, certify, test, inspect or verify service or product com
14、pliance with this document. Any certification or other statement of compliance with the requirements of this document shall not be attributable to the IICRC and is solely the responsibility of the certifier or maker of the statement. Copyright American National Standards Institute Provided by IHS un
15、der license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-IICRC Reference Guide for Professional Mold Remediation (IICRC S520) 2IICRCStandard and ReferenceGuide for Professional Mold Remediation S520First Edition Published 2003 Copyright 2003 by the Ins
16、titute of Inspection, Cleaning and Restoration Certification (IICRC). All rights reserved. No part of this publication may be used or reproduced in any manner whatsoever without written permission from the IICRC, except in the case of brief quotations embodied in articles, reports or critical review
17、s.Institute of Inspection, Cleaning and Restoration Certification (IICRC) 2715 East Mill Plain Boulevard Vancouver, Washington 98661 USA Phone (360) 693-5675 x www.iicrc.org Printed in USA Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reprod
18、uction or networking permitted without license from IHS-,-,-IICRC Reference Guide for Professional Mold Remediation (IICRC S520) 3Table of Contents Preface.5Acknowledgments 7Important Definitions 10Standard and Reference Guide Cross-Reference Table.11IICRC Standard for Professional Mold Remediation
19、(S520) Section 1 Scope, Purpose and Application.13 Section 2 References .13 Section 3 Definitions 14 Section 4 Principles of Mold Remediation.15 Section 5 Contractor Qualifications .16Section 6 Safety and Health .17 Section 7 Administrative Procedures and Insurance18 Section 8 Limitations, Complexit
20、ies, Complications and Conflicts.20 Section 9 Inspection and Preliminary Determination.21Section 10 Structural Remediation.22Section 11 HVAC Remediation 26 Section 12 Contents Remediation 27 Section 13 Post-Remediation Verification .31 Section 14 Final Documentation . 31Section 15 Indoor Environment
21、al Professional .31 Copyright American National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-IICRC Reference Guide for Professional Mold Remediation (IICRC S520) 4Reference Guide for Professional Mold R
22、emediation Introduction .35Chapter 1 The Fungal Ecology of Indoor Environments 36 Chapter 2 Health Effects from Indoor Mold Contamination 40 Chapter 3 Principles of Mold Remediation.52 Chapter 4 Administrative Procedures and Insurance .55 Chapter 5 Limitations, Complexities, Complications and Confli
23、cts.62 Chapter 6 Inspection and Preliminary Determination 65 Chapter 7 Structural Remediation 70Chapter 8 HVAC Remediation85 Chapter 9 Contents Remediation 90Chapter 10 Tools, Equipment and Materials.104 Chapter 11 Safety and Health. 121Chapter 12 Indoor Environmental Professionals and Assessments 1
24、29 Appendix A Mold Remediation Certification Authorities 133 Appendix B Suggested Guidance for the Selection and Use of Respiratory Protection During Mold Remediation 134 Glossary of Terms143 Sources 166 Abbreviations .168 Industry Acronyms 169 Source Acknowledgement .170 Index 172Copyright American
25、 National Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-5PrefaceAwareness of mold growth in buildings has risen sharply in recent years. Several factors have contributed to this heightened awareness, inc
26、luding: energy conservation measures, changes in building materials, the use of rapid construction techniques, failure of occupants to manage moisture intrusion and humidity properly and an increased reliance on mechanical (HVAC) systems for comfort control. Significant media focus has fueled increa
27、sed consumer concern. Response by public and private organizations to this concern led to the publication of several documents and guidelines that address mold remediation. They were written primarily for risk managers, building managers, occupational safety and health professionals, public health o
28、fficials and those making remediation decisions. In 1994 (Second Edition, 1999), the Institute of Inspection, Cleaning and Restoration Certification (IICRC) published the Standard and Reference Guide for Professional Water Damage Restoration(S500), which describes procedures for correcting and preve
29、nting excessive moisture in buildings. While the S500 was a significant step forward in the water damage restoration industry and recognized the problem of microbial growth from water damage, it was not intended to provide specific guidance on the subject of mold remediation. The IICRC Standard and
30、Reference Guide for Professional Mold Remediation (S520) attempts to combine essential scientific principles with practical elements of procedure for technicians facing “real-life” mold remediation challenges. The Standard and Reference Guide is the result of three years of collaborative effort on t
31、he part of dedicated volunteers from the public, institutional and private sectors remediation contractors, microbiologists and other scientists, government and public health professionals, industrial hygienists, representatives of remediation product manufacturers and training schools professionals
32、 from multiple disciplines who are furthering industry knowledge in the science and practice of mold remediation. These diverse members of the IICRC Mold Remediation Standard Committee assembled with one common goal: to create a procedural standard and reference guide for mold remediation in a manne
33、r that places a high priority on the safety and health of property owners, occupants, remediation workers and other affected parties. Committee members researched and reviewed available scientific and industry literature and information on the subject of mold growth, amplification, remediation and p
34、revention, and distilled this body of science and practice into this Standard and Reference Guide for use in remediating mold-contaminated environments. This document is written for use by those involved in the mold remediation industry, primarily for mold remediation companies and workers, and seco
35、ndarily, for others who investigate mold complaints, write remediation specifications, protocols and/or procedures and manage remediation projects. The S520 is a voluntary Standard and Reference Guide. Users of this document assume all risks and liability resulting from use of and reliance upon this
36、 Standard and Reference Guide. Although attempts have been made to ensure that this Standard and Reference Guide is technically consistent with knowledge about mold remediation at the date of its publication, there is no representation or guarantee that every issue and topic relevant to mold remedia
37、tion has been thoroughly addressed. Users of this document must keep abreast of the rapid developments in the field of mold remediation, implement changes in technology and procedures as appropriate and follow applicable federal, state, provincial and local laws and regulations. All mold remediation
38、 projects are unique and in certain circumstances, common sense, experience and professional judgment may justify deviation from this Standard and Reference Guide. It is the responsibility of the remediator to verify on a case-by-case basis that application of this Standard Copyright American Nation
39、al Standards Institute Provided by IHS under license with ANSI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-6and Reference Guide is appropriate. When in doubt, apply caution and seek additional professional opinion.IICRC S520 is presented in a two-part format: t
40、he procedural standard and a supplementary reference guide. The Standard is printed first within the document on colored pages, followed by the longer Reference Guide section. The Standard summarizes most of the significant and important procedures and methodologies of a mold remediation project, wh
41、ile the Reference Guide restates, embellishes and further explains those procedures and methodologies, and provides additional background information which supports the Standard. Although the material in the Reference Guide does not carry the official status of a standard, the two sections complemen
42、t one another and should always be considered in tandem. The S520 does not attempt to teach mold remediation procedures, but rather provide the principles and foundation for understanding proper remediation practices. The S520 is not a substitute for the remediation training and certification progra
43、ms that are necessary to attain competence in the field of mold remediation and properly apply this Standard.S520 is not intended to establish procedures or criteria for assessing mold contamination in an indoor environment. These issues are most appropriately addressed by professional organizations
44、 that represent Indoor Environmental Professionals (IEPs). Since these professional organizations have not agreed upon threshold exposure limits or levels of visible mold growth that constitute a concern for occupant and worker safety, the IICRC Mold Remediation Standard Committee decided not to est
45、ablish action levels or procedures based upon the quantity or size of the area of visible mold growth. Remediators and other parties to the remediation process often request specific guidance regarding quantities of mold or mold spores that trigger remediation activities or confirm remediation succe
46、ss. Quantifying visible levels of mold growth alone is not feasible as an action level decision criterion, because of the wide range of occupant susceptibility and the inability to precisely measure exposure, along with insufficient science to support conclusions in this area at the time of publicat
47、ion.Thus, S520 represents a philosophical shift away from setting numerical mold contamination action levels. Instead, it establishes mold contamination definitions, conditions (1, 2, 3) and general guidance, which, when properly applied, can assist remediators and others in determining criteria tha
48、t trigger remediation activities or confirm remediation success. S520 is a living document; subject to change as more information regarding mold contamination and remediation becomes available, and as scientific developments occur and advancements are made in remediation technology and practice. The
49、 S520 will be reviewed, evaluated and validated through application in the field. Thereafter, it is hoped that the S520 will be revised and improved, and then again reviewed, evaluated and validated through application in the field. This process and further professional and public review will allow our industry to develop a body of mold remediation
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