Variables

Units

Symbol code

Lower (−1)

Higher (+1)

CF

g/l

X₁

10

40

FF

g/l

X₂

10

30

CaCl₂

g/l

X₃

0.5

2

NaCl

g/l

X₄

0.5

2

KH₂PO₄

g/l

X₅

0.1

1

K₂HPO₄

g/l

X₆

0.1

1

MgSO₄

g/l

X₇

0.1

1

Temperature

˚C

X₈

30

37

Speed of agitation

rpm

X₉

150

250

Time

H

X₁₀

24

72

IS

%

X₁₁

2

10