Page 806 - Fundamentals of Water Treatment Unit Processes : Physical, Chemical, and Biological

Pre-Appendix Tables 761

TABLE CDQR.2 (continued)
Units and Conversions—Quick Reference
Quantity Symbol From Units Factor To Units Values
2
3
¼ Q=A(plan) 1.697 558 10 3 m =m =h
3
2
2.829 26 10 5 m =m =min
3
2
4.715 10 7 m =m =s
2
3
gpm=ft 2 58.667 616 m =m =d
3
2
2.444 484 m =m =h
2
3
4.074 14 10 2 m =m =min
2
3
6.790 233 10 4 m =m =s
Solids loading rate j(solids) Lb=d=ft 2 4.793 806 kg=d=m 2
‘-to clarifier
3
Weir loading rate gpd=ft 1.241 7979 10 2 m =m=d
3
5.174 1579 10 4 m =m=h
6 3
8.623 5965 10 m =m=min
3
1.437 266 10 7 m =m=s
3
gpm=ft 44.704 44 m =m=d
3
0.745 074 m =m=h
3
1.241 7979 10 2 m =m=min
3
2.069 663 10 4 m =m=s
Multiply ‘‘from units’’ by factor to obtain ‘‘to units.’’

TABLE CDQR.3
SI Prefixes—Quick Reference
SI System Prefix Symbol Factor
exa E 10 18
peta P 10 15
tera T 10 12
giga G 10 9
mega M 10 6
3
kilo k 10
hecto h 10 2
1
deca da 10
deci da 10 1
centi c 10 2
milli m 10 3
micro m 10 6
nano n 10 9
pico p 10 12
femto f 10 15
atto a 10 18