A lounge chair is an item of upholstered furniture. For use in a public space like a lobby, it must meet specific flammability requirements to ensure occupant safety. Smolder resistance tests, such as NFPA 260 (Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture) and California Technical Bulletin 117-2013, are specifically designed to evaluate the ignition resistance of upholstered furniture components when exposed to a smoldering heat source, like a cigarette. This is the most applicable standard for this type of furnishing among the options provided.

A. The radiant panel test (ASTM E648) measures the critical radiant flux of floor-covering systems, not upholstered furniture.

B. The Steiner tunnel test (ASTM E84) measures the surface burning characteristics of interior wall and ceiling finishes.

C. The methenamine pill test (ASTM D2859) is used to measure the flammability of carpets and rugs.

1. Ballast

D. K. (2018). Interior Design Reference Manual: Everything You Need to Know to Pass the NCIDQ Exam (6th ed.). Professional Publications

Inc.

Chapter 10

"Flammability Tests

" p. 10-18: "NFPA 260

Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture

also known as CAL 117... This standard tests the resistance of upholstered furniture components... to ignition by a smoldering cigarette."

Chapter 10

"Flammability Tests

" p. 10-17: "ASTM E84

Standard Test Method for Surface Burning Characteristics of Building Materials (Steiner tunnel test)... is one of the most common fire testing standards... for wall and ceiling materials."

Chapter 10

"Flammability Tests

" p. 10-17: "ASTM E648

Standard Test Method for Critical Radiant Flux of Floor-Covering Systems Using a Radiant Heat Energy Source (flooring radiant panel test)... measures the flame spread of flooring systems

like carpet..."

Chapter 10

"Flammability Tests

" p. 10-18: "ASTM D2859

Standard Test Method for Ignition Characteristics of Finished Textile Floor Covering Materials (methenamine pill test)... is required for all carpet sold and manufactured in the United States."

2. National Fire Protection Association. (2019). NFPA 260: Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture.

Section 1.1 Scope: "This standard provides methods for testing the cigarette ignition resistance of upholstered furniture components."

3. ASTM International. (2020). ASTM E84-20: Standard Test Method for Surface Burning Characteristics of Building Materials.

Section 1.1: "This fire-test-response standard for the comparative surface burning behavior of building materials is applicable to exposed surfaces

such as walls and ceilings."