MAH_2019

MAH Protocol for Conducting Measurements of ANSI/AARST MAH 2019 Radon and Radon Decay Products in Homes 1 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes 1.0 SCOPE AND PURPOSE 1.1 Scope This standard of practice specifies procedures and minimum requirements when measuring radon concentrations in single-family residences for determining if radon mitigation is necessary to protect current and future occupants. This standard applies to homeowners, professionals and any other party seeking to determine if radon mitigation is necessary for real estate or non-real-estate purposes. 1.2 Limitations 1.2.1 This standard does not address all technical aspects of measurement devices, quality assurance or techniques to specifically identify radon sources such as radon in water supplies, building materials or relative to the possession and handling of radioactive materials. 1.2.2 Adherence to this standard does not guarantee or supersede compliance with regulations of any federal, state or local agency with jurisdiction where testing is performed. 1.3 Applicability 1.3.1 These standards of practice can be adopted as requirements for contractual relationships or adopted as recommendations or requirements of an authority or jurisdiction such as for private proficiency programs, a state radon program or other governmental body. 1.3.2 The terms “Note–” and “Informative Advisory” indicate provisions that are considered to be helpful or good practice but that do not contain a mandatory requirement. Table of Contents for Topics Commonly of interest 2.1 Which homes to test 6.0 Conducting the test 2.2 When to test 7.0 Actions based on test results 2.3 Test devices 7.2 If tests disagree 2.4 Who should conduct the test 7.3 Post-mitigation testing 2.5 Summary of test procedures 8.0 Requirements for professionals 3.0 Where to test 9.0 RDP measurements 4.0 Conditions required during the test 10.0 Definitions of terms 5.0 Protocol options MAH Companion Guidance 2.0 INTRODUCTION—BEFORE YOU TEST 2.1 Which Homes Should Be Tested? Informative Advisory —Any home on any parcel of land can have a radon problem. Testing is the only way to know. Every home should be tested to include new and old homes; tightly sealed and drafty homes; and homes with or without basements or crawl spaces . Radon concentrations cannot be predicted based on state, local or neighborhood radon measurements.