Aspect: luminous-exitance-per-unit-frequency

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Identifier: AS198
Name: luminous-exitance-per-unit-frequency
Associated Scales:
SC1425: ratio scale, per metre squared candela (per metre)
SC1426: ratio scale, per metre squared candela steradian (per metre)
SC1428: ratio scale, lumen per metre squared (per metre)
SC1430: ratio scale, per metre squared candela (per hertz)
SC1431: ratio scale, per metre squared candela steradian (per hertz)
SC1432: ratio scale, lumen per metre squared (per hertz)