What Parts-per example 2×10 −6?
Coefficient Parts-per example Uno equiv. Symbol form Value of quantity
Parts-per notation
145865
text text text text text
2-145865-1
Uno
IUPAP's "uno" proposal
10 −2 2% 2 centiuno 2 cU 2×10 −2
10 −3 2 ‰ 2 milliuno 2 mU 2×10 −3
10 −6 2 ppm 2 microuno 2 µU 2×10 −6
10 −9 2 ppb 2 nanouno 2 nU 2×10 −9
10 −12 2 ppt 2 picouno 2 pU 2×10 −12
SELECT Parts-per example FROM table WHERE Value of quantity = 2×10 −6
2×10 −6