NCIDQ IDPX EXAM | INTERIOR DESIGN PROFESSIONAL EXAM
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
ASHRAE 62-2001 -
CORRECT|ANSWER
sets minimum ventilation requirements to provide a level of indoor air quality that is safe for people
in institutional, commercial and residential buildings
ASTM E119 - Assembly Test -
CORRECT|ANSWER
One of the most widely used tests for the fire resistance of construction assemblies by setting a fire
on one side of a sample wall assembly.
The first part of the test measures the temperature at which the non-exposed side of the wall will
burn.
The second part uses the hose stream test to simulate how well the assembly holds up to impact
from falling debris.
ASTM D2859 - methenamine pill test -
CORRECT|ANSWER
This pass/fail test measures the size of the burn to determine flame resistance of textile floor
coverings. — simply put: does it burn?
A methenamine tablet (or pill) is ignited on the tested material, simulating a scenario that would be
similar to if someone dropped a lit cigarette on the floor.
It is required for all carpet sold in the United States.
Note that this is different than the actual flame spread of the carpet or floor covering.
ASTM D2859 - methenamine pill test -
CORRECT|ANSWER
also called the Standard Method for Ignition Characteristics of Finished Textile Floor Covering
Materials.
, ASTM E648 - Flooring Radiant Panel Test -
CORRECT|ANSWER
This test measures a carpet's ability to spread flame in a corridor or exit way when a fully developed
fire is nearby. This test also measures the distance of any flame spread that occurs.
Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat
Energy Source.
AATCC 16 - Fade-Ometer Test -
CORRECT|ANSWER
determines colorfastness under light exposure of textile material
AATCC 8 - Crocking Resistance Test -
CORRECT|ANSWER
Determines the resistance of a colored textile to transfer its color from its surface to other surfaces
by rubbing.
AATCC 147 - Bacterial Resistance Test -
CORRECT|ANSWER
Antibacterial activity assessment of textile materials. Uses Parallel Streak method
NFPA 701 - Vertical Ignition Test -
CORRECT|ANSWER
Test the flammability of drapery and other window treatments
ASTM E84 - Steiner Tunnel Test -
CORRECT|ANSWER
Tests flame spread of wall and ceiling materials, Class A, B, C rating
NFPA 258 / ASTM E662 - Standard Test Method for Specific Optical Density of Smoke Generated by
Solid Materials -
2026/2027 LATEST UPDATE | QUESTIONS AND VERIFIED ANSWERS
| GRADED A+
ASHRAE 62-2001 -
CORRECT|ANSWER
sets minimum ventilation requirements to provide a level of indoor air quality that is safe for people
in institutional, commercial and residential buildings
ASTM E119 - Assembly Test -
CORRECT|ANSWER
One of the most widely used tests for the fire resistance of construction assemblies by setting a fire
on one side of a sample wall assembly.
The first part of the test measures the temperature at which the non-exposed side of the wall will
burn.
The second part uses the hose stream test to simulate how well the assembly holds up to impact
from falling debris.
ASTM D2859 - methenamine pill test -
CORRECT|ANSWER
This pass/fail test measures the size of the burn to determine flame resistance of textile floor
coverings. — simply put: does it burn?
A methenamine tablet (or pill) is ignited on the tested material, simulating a scenario that would be
similar to if someone dropped a lit cigarette on the floor.
It is required for all carpet sold in the United States.
Note that this is different than the actual flame spread of the carpet or floor covering.
ASTM D2859 - methenamine pill test -
CORRECT|ANSWER
also called the Standard Method for Ignition Characteristics of Finished Textile Floor Covering
Materials.
, ASTM E648 - Flooring Radiant Panel Test -
CORRECT|ANSWER
This test measures a carpet's ability to spread flame in a corridor or exit way when a fully developed
fire is nearby. This test also measures the distance of any flame spread that occurs.
Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat
Energy Source.
AATCC 16 - Fade-Ometer Test -
CORRECT|ANSWER
determines colorfastness under light exposure of textile material
AATCC 8 - Crocking Resistance Test -
CORRECT|ANSWER
Determines the resistance of a colored textile to transfer its color from its surface to other surfaces
by rubbing.
AATCC 147 - Bacterial Resistance Test -
CORRECT|ANSWER
Antibacterial activity assessment of textile materials. Uses Parallel Streak method
NFPA 701 - Vertical Ignition Test -
CORRECT|ANSWER
Test the flammability of drapery and other window treatments
ASTM E84 - Steiner Tunnel Test -
CORRECT|ANSWER
Tests flame spread of wall and ceiling materials, Class A, B, C rating
NFPA 258 / ASTM E662 - Standard Test Method for Specific Optical Density of Smoke Generated by
Solid Materials -
