RMS RMS Industry Standards 2 — Questions and Answers
Question 1: According to ANSI/AARST standards, what is the maximum allowable post-mitigation radon level that defines a successful mitigation?
- 2 pCi/L (Correct answer)
- 4 pCi/L
- 8 pCi/L
- 10 pCi/L
Correct answer: 2 pCi/L
ANSI/AARST standards set a performance goal of 2 pCi/L or less for a successfully mitigated building.
Question 2: Which AARST consensus standard specifically governs radon mitigation in schools and large buildings?
- ANSI/AARST MAH
- ANSI/AARST SGM-SF
- ANSI/AARST MALB (Correct answer)
- ANSI/AARST CC-1000
Correct answer: ANSI/AARST MALB
ANSI/AARST MALB (Mitigation for Attached Large Buildings) covers schools, commercial, and large structures.
Question 3: Under EPA and AARST guidance, how soon after mitigation system installation should a post-mitigation radon test be conducted?
- 24 hours
- At least 24 hours but within 30 days (Correct answer)
- 90 days
- 6 months
Correct answer: At least 24 hours but within 30 days
Post-mitigation testing should occur at least 24 hours after installation but within 30 days to confirm system effectiveness.
Question 4: Which document provides the national standard for measuring radon in homes and is referenced by RMS professionals?
- ANSI/AARST SGM-SF
- ANSI/AARST MAMF
- ANSI/AARST MS-LB
- EPA 402-R-93-078 (Correct answer)
Correct answer: EPA 402-R-93-078
EPA 402-R-93-078 (the 'Blue Book') provides national radon measurement protocols commonly referenced in the field.
Question 5: The AARST Consortium on National Radon Standards (CNRS) was established primarily to:
- Set radon device pricing
- Develop nationally recognized ANSI-approved radon standards (Correct answer)
- License radon laboratories
- Regulate state radon programs
Correct answer: Develop nationally recognized ANSI-approved radon standards
CNRS was created to develop radon standards through the ANSI consensus process, giving them national standing.
Question 6: According to ANSI/AARST SGM-SF, a sub-slab depressurization system must include which required component for occupant awareness?
- Digital display panel
- System performance indicator (SPI) (Correct answer)
- Carbon monoxide detector
- Radon alarm
Correct answer: System performance indicator (SPI)
ANSI/AARST SGM-SF requires a system performance indicator so occupants can verify the fan is operating.
Question 7: When a mitigation contractor installs a system in a state with a radon licensure program, compliance with state regulations:
- Is optional if AARST standards are followed
- Supersedes all federal guidance
- Is required in addition to meeting AARST standards (Correct answer)
- Only applies to commercial buildings
Correct answer: Is required in addition to meeting AARST standards
State licensure requirements are mandatory and must be met alongside national AARST/EPA standards.
RMS RMS Industry Standards 2
According to ANSI/AARST standards, what is the maximum allowable post-mitigation radon level that defines a successful mitigation?