"a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle"@en-us . "footcandle"@en-us . "113640371"^^ . . . "0"^^ . . "footcandle"^^ . . "0"^^ . "112869469"@en-us . . . . "109805784"@en-us . "13640371-n"^^ . . .