IICRC - AMRT Exam with complete
solution 202/2025
S500 (Water) // S520 (Mold) // NY City Guidelines - ANSWER- In general, which
remediation guidelines/standards should a remediator be familiar with?
S520 Standard for Professional Mold Remediation - ANSWER- The industry standard of
care document for mold remediation contractors is...?
Condition 1 // Normal or uncontaminated building or items // Indoor environment that
may have settled spores, fungal fragments whose identity; location and quantity are
reflective of a normal fungal ecology for a similar indoor environment // no treatment
necessary - ANSWER- What does "normal fungal ecology" mean?
Indoor environment which is primarily contaminated with settled spores that were
dispersed directly or indirectly from a condition 3 area // Spores landed on indoor
surfaces or are suspended in the air but are not actively growing // HEPA vacuuming or
damp wiping - ANSWER- Describe a Condition 2
Indoor environment contaminated with the presence of actual mold growth and
associated spores // Actual growth includes growth that is active or dormant, visible or
hidden - ANSWER- Describe a Condition 3
Yes - ANSWER- Do you find settled spores in indoor environments with no complaints?
CONDITION 2 (SETTLED SPORES HAVE AN UNUSUAL DISTRIBUTION) -
ANSWER- What are "settled spores" according to the S520?
Should - ANSWER- The Trigger language term that defines the "standard of care" in the
S500 and S520 is...?
Shall - ANSWER- The Trigger language term that defines mandatory or regulatory
requirements (S500 & S520) is?
,recommended - ANSWER- The trigger language term that defines advised or
suggested (S500 & S520) is...?
Complexities - ANSWER- How are situations referred to in the S500 and S520 that
make a project more difficult or detailed, but the project can still be performed?
Complications - ANSWER- How are situations referred to in the S500 and S520 that
make a project more intricate or complex after the start, but the project can still be
performed with a change in scope?
Limitations - ANSWER- How are situations referred to in the S500 and S520 that limit
the scope and remediation activities?
No - ANSWER- Are there federal mold remediation regulations in the US or Canada?
Workers health, other occupants, unaffected area, HVAC system - ANSWER- What are
we trying to protect in a microbial remediation project?
Identify and eliminate the water source - ANSWER- What should be the first step in a
microbial remediation project?
Ability of people to reocc - ANSWER- What is the ultimate cleaning criterion (according
to the ACGIH Bioaerosols)
Methods and procedures that we implement to protect the worker & occupants & HVAC
system - ANSWER- What does engineering control mean?
Isolation with Containment, Airflow Management, HEPA filtration and controlled
demolition methods - ANSWER- Name Engineering Controls
PPE - ANSWER- What is not an engineering control?
One millionth of a meter - ANSWER- What is the definition of a micron?
DIGITAL MONOMETER - ANSWER- How can evaluate and test an air flow and a
pressure differential?
High Efficiency Particulate Air - ANSWER- What does the acronym HEPA stand for?
, removes 99.97% of particulate matter of 0.3 microns and larger - ANSWER- WHAT IS
THE DEFINITION OF HEPA FILTRATION?
Isolation of work area, managing air flow and controlled demolition - ANSWER- What
are the three main principles used for protecting people and unaffected environments?
Preloss conditions // safe & sanitary // Condition 1 - normal fungal ecology - ANSWER-
What are the goals in a microbial remediation project for the remediator and IEP (Indoor
Environmental Professional)?
Water source - ANSWER- What factors are necessary for mold growth to occur?
Keep building dry and when wet, dry immediately and expediently - ANSWER- What is
the best way to prevent mold growth in a building?
Wet building materials - ANSWER- What can create odors in wet buildings?
When air is supplied to a space than taken out - ANSWER- Define positive pressure in
a space?
When air is taken out of the space - ANSWER- Define negative pressure in a space?
Enclosure in a work area that is contained with poly - ANSWER- What is a local
containment?
Effectiveness of our hepa filters - ANSWER- What can laser particle counters be used
for?
High to low - ANSWER- Airflow always move from a ____ to a ___ pressure?
TRUE - ANSWER- Particles that are smaller than 5 microns can be inhaled deeply into
the lungs. True or False
Organism is water loving - ANSWER- What does the term hydrophilic mean?
Organism avoids water - ANSWER- What'd does hydrophobic mean?
Cat 1 - clean - low infection risk / Cat 2 - gray - medium infection risk / Cat 3 - black -
large infection risk - ANSWER- Name the Categories of Water according to the S500
All 3 categories - ANSWER- With which Category of Water can microbial growth occur?
solution 202/2025
S500 (Water) // S520 (Mold) // NY City Guidelines - ANSWER- In general, which
remediation guidelines/standards should a remediator be familiar with?
S520 Standard for Professional Mold Remediation - ANSWER- The industry standard of
care document for mold remediation contractors is...?
Condition 1 // Normal or uncontaminated building or items // Indoor environment that
may have settled spores, fungal fragments whose identity; location and quantity are
reflective of a normal fungal ecology for a similar indoor environment // no treatment
necessary - ANSWER- What does "normal fungal ecology" mean?
Indoor environment which is primarily contaminated with settled spores that were
dispersed directly or indirectly from a condition 3 area // Spores landed on indoor
surfaces or are suspended in the air but are not actively growing // HEPA vacuuming or
damp wiping - ANSWER- Describe a Condition 2
Indoor environment contaminated with the presence of actual mold growth and
associated spores // Actual growth includes growth that is active or dormant, visible or
hidden - ANSWER- Describe a Condition 3
Yes - ANSWER- Do you find settled spores in indoor environments with no complaints?
CONDITION 2 (SETTLED SPORES HAVE AN UNUSUAL DISTRIBUTION) -
ANSWER- What are "settled spores" according to the S520?
Should - ANSWER- The Trigger language term that defines the "standard of care" in the
S500 and S520 is...?
Shall - ANSWER- The Trigger language term that defines mandatory or regulatory
requirements (S500 & S520) is?
,recommended - ANSWER- The trigger language term that defines advised or
suggested (S500 & S520) is...?
Complexities - ANSWER- How are situations referred to in the S500 and S520 that
make a project more difficult or detailed, but the project can still be performed?
Complications - ANSWER- How are situations referred to in the S500 and S520 that
make a project more intricate or complex after the start, but the project can still be
performed with a change in scope?
Limitations - ANSWER- How are situations referred to in the S500 and S520 that limit
the scope and remediation activities?
No - ANSWER- Are there federal mold remediation regulations in the US or Canada?
Workers health, other occupants, unaffected area, HVAC system - ANSWER- What are
we trying to protect in a microbial remediation project?
Identify and eliminate the water source - ANSWER- What should be the first step in a
microbial remediation project?
Ability of people to reocc - ANSWER- What is the ultimate cleaning criterion (according
to the ACGIH Bioaerosols)
Methods and procedures that we implement to protect the worker & occupants & HVAC
system - ANSWER- What does engineering control mean?
Isolation with Containment, Airflow Management, HEPA filtration and controlled
demolition methods - ANSWER- Name Engineering Controls
PPE - ANSWER- What is not an engineering control?
One millionth of a meter - ANSWER- What is the definition of a micron?
DIGITAL MONOMETER - ANSWER- How can evaluate and test an air flow and a
pressure differential?
High Efficiency Particulate Air - ANSWER- What does the acronym HEPA stand for?
, removes 99.97% of particulate matter of 0.3 microns and larger - ANSWER- WHAT IS
THE DEFINITION OF HEPA FILTRATION?
Isolation of work area, managing air flow and controlled demolition - ANSWER- What
are the three main principles used for protecting people and unaffected environments?
Preloss conditions // safe & sanitary // Condition 1 - normal fungal ecology - ANSWER-
What are the goals in a microbial remediation project for the remediator and IEP (Indoor
Environmental Professional)?
Water source - ANSWER- What factors are necessary for mold growth to occur?
Keep building dry and when wet, dry immediately and expediently - ANSWER- What is
the best way to prevent mold growth in a building?
Wet building materials - ANSWER- What can create odors in wet buildings?
When air is supplied to a space than taken out - ANSWER- Define positive pressure in
a space?
When air is taken out of the space - ANSWER- Define negative pressure in a space?
Enclosure in a work area that is contained with poly - ANSWER- What is a local
containment?
Effectiveness of our hepa filters - ANSWER- What can laser particle counters be used
for?
High to low - ANSWER- Airflow always move from a ____ to a ___ pressure?
TRUE - ANSWER- Particles that are smaller than 5 microns can be inhaled deeply into
the lungs. True or False
Organism is water loving - ANSWER- What does the term hydrophilic mean?
Organism avoids water - ANSWER- What'd does hydrophobic mean?
Cat 1 - clean - low infection risk / Cat 2 - gray - medium infection risk / Cat 3 - black -
large infection risk - ANSWER- Name the Categories of Water according to the S500
All 3 categories - ANSWER- With which Category of Water can microbial growth occur?
