1、 Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Professional Mold Remediation (IICRC S520) Disclaimer The Institute of Inspection, Cleaning and Restoration Certification S520 Standard and Reference Guide for Professional Mold Remediation (refer
2、red to as the “Standard and Reference Guide” or the “S520”) is intended to provide information about the remediation of mold contaminated structures, systems and contents and to assist individuals and entities working in the mold remediation industry in establishing and maintaining their professiona
3、l competence. Users of this document should stay updated and informed about developments in the field of mold remediation, implement changes in technology and procedures as appropriate, as well as follow applicable federal, state, provincial and local laws and regulations. Since every mold remediati
4、on project is unique, in certain circumstances, common sense, experience and professional judgment may justify a deviation from this Standard and Reference Guide. Furthermore, this Standard and Reference Guide is not intended to be either exhaustive or inclusive of all pertinent requirements, method
5、s or procedures that might be appropriate on a particular mold remediation project. The information upon which this Standard and Reference Guide is based is subject to change, which may invalidate any or all of the information contained herein. This Standard and Reference Guide was developed through
6、 a consensus standard development process, which brought together volunteers representing varied viewpoints and interests to achieve consensus on mold remediation issues. While the Institute of Inspection, Cleaning and Restoration Certification (IICRC) administers the process and establishes policie
7、s, procedures and guidelines 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 this Standard and Reference Guide. The IICRC, and all S520 consensus body standard commi
8、ttee 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, arising from or relating to the publication, use of or reliance on th
9、e information contained in this Standard and Reference Guide, including without limitation, any and all special, incidental, compensatory, consequential, punitive or other damages (including damages for personal injury or bodily injury, property damage, loss of business, loss of profits, litigation
10、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 negation of damages is a fundamental condition of the use of the information co
11、ntained in this Standard and Reference Guide and this document would not be published without such limitations. While the information contained within this Standard and Reference Guide is provided in good faith and is believed to be reliable, the IICRC makes no representations, warranties or guarant
12、ees as to the accuracy or completeness of any information contained in this Standard and Reference Guide, or that following this Standard and Reference Guide will result in compliance with any applicable laws, rules or regulations, or in safe, satisfactory or complete performance of a mold remediati
13、on project. ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING WITHOUT LIMITATION, ANY AND ALL WARRANTIES CONCERNING THE ACCURACY OR COMPLETENESS OF THE INFORMATION, ITS FITNESS OR APPROPRIATENESS FOR A PARTICULAR PURPOSE OR USE, ITS MERCHANTABILITY, ITS NON-INFRINGEMENT OF ANY INTELLECTU
14、AL PROPERTY RIGHTS, OR ANY OTHER MATTER. 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 person or entity, or to perform any duty owed by any person or entity to someone else. Any and a
15、ll use of or reliance upon this Standard and Reference Guide is at the users own discretion and risk. Anyone using this document should understand the limitations with the use of this document, and rely on his or her own independent judgment, or as appropriate, seek the advice of a competent profess
16、ional 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 compliance with this document,
17、and does not assume any responsibility for user compliance with any applicable laws and regulations. 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 stat
18、ement. The IICRC does not endorse proprietary products or methods. IICRC S520 Standard and Reference Guide for Professional Mold Remediation Second Edition Published August 2008 This document supersedes the IICRC S520 Standard and Reference Guide for Professional Mold Remediation, first edition. Ins
19、titute of Inspection, Cleaning and Restoration Certification (IICRC) 2715 East Mill Plain Boulevard Vancouver, Washington 98661 USA Phone (360) 693-5675 www.iicrc.org Copyright 2003, 2004, 2008 by the Institute of Inspection, Cleaning and Restoration Certification (IICRC). All rights reserved. No pa
20、rt of this publication may be used or reproduced in any manner whatsoever without written permission from the IICRC. Printed in United States of America Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Professional Mold Remediation (IICRC S520) 2
21、 Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Professional Mold Remediation (IICRC S520) 3 Table of Contents Foreword. 5 Dedication. 8 Acknowledgments.9 Important Definitions 12 Standard and Reference Guide Cross-Reference Table . 13 IICRC St
22、andard for Professional Mold Remediation (S520) Section 1 Scope, Purpose and Application . 15 Section 2 References . 15 Section 3 Definitions . .16 Section 4 Principles of Mold Remediation . 18 Section 5 Equipment, Tools and Materials . 19 Section 6 Building and Material Science . 23 Section 7 Remed
23、iator Qualifications 24 Section 8 Safety and Health . 25 Section 9 Administrative Procedures, Documentation and Risk Management 31 Section 10 Inspection and Preliminary Determination . 35 Section 11 Limitations, Complexities, Complications and Conflicts . 38 Section 12 Structural Remediation . 39 Se
24、ction 13 HVAC Remediation . 49 Section 14 Contents Remediation 52 Section 15 Post-Remediation Verification 59 Section 16 Indoor Environmental Professional . 59 Section 17 Final Documentation 59 Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Pro
25、fessional Mold Remediation (IICRC S520) 4 Reference Guide for Professional Mold Remediation Introduction . 62 Chapter 1 Principles of Mold Remediation . 63 Chapter 2 The Fungal Biology of Indoor Environments . 66 Chapter 3 Health Effects from Indoor Exposure to Mold in Water/Moisture-Impacted Buildi
26、ngs 71 Chapter 4 Building and Material Science .86 Chapter 5 Equipment, Tools and Materials . 103 Chapter 6 Safety and Health . 123 Chapter 7 Administrative Procedures, Documentation and Risk Management . 133 Chapter 8 Inspection and Preliminary Determination . 146 Chapter 9 Limitations, Complexitie
27、s, Complications and Conflicts 154 Chapter 10 Indoor Environmental Professionals and Assessments 158 Chapter 11 Structural Remediation . 162 Chapter 12 HVAC Remediation 180 Chapter 13 Contents Remediation . 188 Industry Acronyms 204 Glossary of Terms 205 Conversion Charts . 230 Sources 231 Source Ac
28、knowledgement . 232 IICRC S520 Index . 234 Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Professional Mold Remediation (IICRC S520) 5 Foreword Awareness of mold growth in buildings has risen sharply in recent years. Several factors have contri
29、buted to this heightened awareness, including energy conservation measures, changes in building materials, the use of fast-track construction techniques, failure of occupants to manage moisture intrusion and humidity properly, and an increased reliance on mechanical Heating, Ventilating and Air Cond
30、itioning (HVAC) systems for comfort control. In addition, significant media focus and litigation have fueled increased consumer concern. Response by public and private organizations to mold concerns led to the publication of several documents and guidelines that address mold remediation. They were w
31、ritten primarily for risk managers, building managers, occupational safety and health professionals, public health officials and those making remediation decisions. The IICRC S520 Mold Remediation Consensus Body Standard Committee has reviewed and considered those existing documents; e.g., New York
32、City Department of Health (NYCDOH) guidelines, Environmental Protection Agency (EPA) guidelines, and National Institute of Environmental Health Sciences (NIEHS) in the development of this revised document. In 1994, the Institute of Inspection, Cleaning and Restoration Certification (IICRC) first pub
33、lished the Standard and Reference Guide for Professional Water Damage Restoration (S500, revised 1999, 2006), which describes procedures for water damage restoration of structures, systems and contents. While the S500 was a significant step forward in the water damage restoration industry and it rec
34、ognized the problem of microbial growth associated with water damage, it was not intended to provide specific guidance on the subject of mold remediation. The IICRC S520 Standard and Reference Guide for Professional Mold Remediation (S520; referred to separately in this document as “Standard” or “Re
35、ference Guide”) attempts to combine essential scientific principles with practical procedures for remediators facing mold remediation challenges. The S520 is a procedural Standard. It is based on reliable remediation principles, review of available scientific and industry literature and information,
36、 and practical experience. In addition, there has been extensive consultation with, and information obtained from, numerous other sources. These sources include, but are not necessarily limited to, microbiologists and other scientists, government and public health professionals, industrial hygienist
37、s, international, national and regional trade associations serving the professional mold remediation industry, chemical formulators and equipment manufacturers, cleaning and remediation training schools, remediation firms, the insurance industry, allied trades persons and others with specialized exp
38、erience. This document is subject to further revision as developments occur in technology and procedures. The Second Edition of the S520 has been updated and rewritten. Additional Chapters and Sections have been added covering Building and Material Science and Equipment, Tools and Materials. This do
39、cument supersedes the IICRC S520 Standard and Reference Guide for Professional Mold Remediation (S520 First Edition 2003, 2004). This document is written for use by those involved in the mold remediation industry, primarily for mold remediation companies and workers, and secondarily, for others who
40、investigate or assess mold complaints, prepare remediation specifications, protocols or procedures, and manage remediation projects, (e.g., indoor environmental professionals (IEPs), other specialized experts) and finally, for other potential materially interested parties (e.g., consumers and occupa
41、nts, property owners and Institute of Inspection, Cleaning and Restoration Certification Standard IICRC S520 IICRC Standard for Professional Mold Remediation (IICRC S520) 6 managers, insurance company representatives, government and regulatory bodies). The S520 is a voluntary Standard and Reference
42、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 remediation has been thoroughly
43、 addressed. Users of this document should stay updated and informed about 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 pro
44、jects 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 and Reference Guide is approp
45、riate. When in doubt, apply caution and seek additional professional opinions. Users of this document assume all risks and liability resulting from use of and reliance upon this Standard and Reference Guide. The S520 is presented in a two-part format: the procedural Standard and a supplemental infor
46、mative annex hereinafter referred to as a 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, whi
47、le the Reference Guide restates 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 complement one another
48、and should always be considered in tandem. The S520 does not attempt to teach mold remediation procedures, but rather provides the principles and foundation for understanding proper remediation practices. The S520 is not a substitute for remediation training and certification programs that are neces
49、sary to attain competence in the field of mold remediation and properly apply this Standard. The 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 that represent IEPs. Since these professional organizations have not agreed upon threshold exposure limits or levels of visible mold growth t
