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Table 1 Face-centered cube design matrix with coded and original units

From: Response surface modeling for hot, humid air decontamination of materials contaminated with Bacillus anthracis ∆Sterne and Bacillus thuringiensis Al Hakam spores

Run

X1

X2

X3

Temperature (°C)

Rel. humidity (%)

Days

Block

3

−1

−1

−1

60.0

60

1

0

9

−1

−1

1

60.0

60

7

0

12

−1

1

−1

60.0

90

1

0

6

−1

1

1

60.0

90

7

0

1

0

0

0

68.3

75

4

0

4

0

0

0

68.3

75

4

0

8

0

0

0

68.3

75

4

0

11

0

0

0

68.3

75

4

0

13

0

0

0

68.3

75

4

0

2

1

−1

−1

76.7

60

1

0

10

1

−1

1

76.7

60

7

0

7

1

1

−1

76.7

90

1

0

5

1

1

1

76.7

90

7

0

14

−1

0

0

60.0

75

4

1

16

0

−1

0

68.3

60

4

1

18

0

0

−1

68.3

75

1

1

19

0

0

1

68.3

75

7

1

17

0

1

0

68.3

90

4

1

15

1

0

0

76.7

75

4

1