reference quantity

18 LETTERS · STARTS WITH R

reference quantity is a valid 18-letter word worth 34 points in Scrabble and 37 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1E1F4E1R1E1N1C3E1Q10U1A1N1T1I1T1Y4

1 + 1 + 4 + 1 + 1 + 1 + 1 + 3 + 1 + 0 + 10 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =34 PTS

DOUBLE WORD → 68TRIPLE WORD → 102

MEANING

What does reference quantity mean?