GLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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FIBER SATURATION

The limit of the absorption of moisture by wood fibres. The fibre saturation point for most structural wood is approximately 30%. see _free water_ and _bound water_


FIBREGLASS

Flexible, non-flammable fibre formed by the extrusion of glass filaments, used primarily in drapery fabrics and insulation, and found in structures with rigid flame and sun resistance specifications.


FILAMENT

A single strand of fibre, natural or synthetic. Natural fibre filaments are spun into yarns, and synthetic filaments may be extruded directly into yarn form.


FILTERING FACE PIECE

(dust mask) – A negative-pressure particulate respirator with a filter as an integral part of the face piece or with the entire face piece composed of the filtering medium.


FILTRATION SOILING (PATTERN STAINING)

A normal condition which appears as dark streaks on carpeting or insulation in the path of continuing air flow. The affected materials filter out airborne particles which accumulate over time.


FINGER PRINT POWDER

A dark, finely pulverized powder used to detect oily finger prints, consisting of carbon black and other materials, some of which are rated as carcinogens.


FIRE EXTINGUISHER

A portable device for immediate and temporary use in putting out a fire. Extinguishers contain wet or dry materials appropriate for specific types of fires.


FIRE RESIDUE

Solid or viscous combustion products transported as a component of smoke, which fall out or adhere to surfaces in its path.


FIRE WALL

A wall having sufficient fire resistance and structural stability to restrict the spread of fire to adjoining areas or buildings.


FIRST AID

Emergency measures to be taken when a person is suffering from injury or overexposure to a hazardous material, before regular medical help can be obtained.