Technical Specs for FF&E, Lighting

What is a lumen?

The amount of luminous flux produced by a point source of one candlepower in a solid angle of one steradian. The total amount of visible light a source emits

What is fuzzing?

Describes the appearance of a fabric when small fibers work out of the yarn onto the surface

What is stain resistance?

A material’s resistance to a change in appearance after the application and removal of another material

What three activities does Scientific Certification Systems conduct?

certifies:

• environmentally related product attributes

• environmentally preferable products

• well managed forests

What is luminous efficacy?

Ratio of luminous flux emitted by a light source to the power used by the light source

What is illuminance?

Density of luminous flux incident on a surface in lumens per unit area

How is a tungsten halogen lamp different from a standard incandescent lamp?

tungsten halogen lamp: includes a small amount of a halogen with the inert gas and is made from a bulb of quartz, lasts longer, produces a whiter light, produced more uniform light over time

What is abrasion resistance

Ability of a material or finish to resist being worn away or to maintain original appearance when rubbed with another object

What activities does the Greenguard Environmental Institute conduct?

Test products for acceptable indoor air quality standards and registers the products it certifies

What is adaptive reuse?

Practice of reusing existing buildings and materials from buildings as much as possible

What is the Forest Stewardship Council (FSC)?

Nonprofit organization devoted to encouraging the responsible management of the world’s forests

3 common ways to attach fabric to cushioning

• buttoning

• tufting

• channeling

Main advantages of acrylic as furniture fabric

• moderately good strength

• resilience

• resistance to sunlight

• marked similarity to wool

What is the color rendition index?

Numerical measure of how well a light source renders the color of an object when compared to the same object lit by a reference source of the same color temperature

3 common cushion materials

• polyester batting

• polyurethane foam

• cellulosic batting

What is a light emitting diode (LED)?

Semiconductor device that uses solid state electronics to create light

9 common biological contaminates often found in buildings?

Mold, mildew, bacteria, viruses, mites, pollen, animal dander, dust, insects

Main advantages of nylon as furniture fabric?

• exceptional strength

• high resiliency

• high elasticity

• resistance to many chemical stains

• resistance to microorganisms

• good water resistance

How is the color temperature of a light source determined?

Based on the temperature, in degrees Kelvin, to which a black body radiator would have to be heated to produce the same hue as a particular light source

Indentation load factor

Measure of the firmness of foam used for furniture

What voluntary, consensus based national standard for developing high performance, sustainable buildings was established by the US Green Building Council?

Leadership in Energy and Environmental Design (LEED)

How does a high intensity discharge lamp work?

Passes an electric current through a gas or vapor under high pressure

5 common hazardous materials found in existing buildings

• asbestos

• vermiculite

• PCBs

• lead

• radon

How does a fluorescent lamp produce light?

Electric arc is formed, generating ultraviolet light. Light strikes the phosphor coating on the inside and generates visible light