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Table 2 Summary of ANOVA for the effects of [O2], RH, and Ev on kΔR-444 and kΔR-549

From: Factorial experimentation on photodegradation of historical paper by polychromatic visible radiation

(a) kΔR-444

 

Sum of squares

DF

Mean square

F value

p value

[O2]

2.52  ×  10–5

1

2.52  ×  10–5

55.86

0.0017

RH

4.90  ×  10–5

1

4.90  ×  10–5

108.60

0.0005

Ev

1.51  ×  10–5

1

1.51  ×  10–5

33.52

0.0044

Error

1.80  ×  10–6

4

4.50  ×  10–7

  

(b) kΔR-549

 

Sum of squares

DF

Mean square

F value

p value

[O2]

7.41  ×  10–6

1

7.41  ×  10–6

21.25

0.0010

RH

2.10  ×  10–6

1

2.10  ×  10–6

6.03

0.0701

Ev

2.53  ×  10–6

1

2.53  ×  10–6

7.26

0.0544

Error

1.40  ×  10–6

4

3.49  ×  10–7

  
  1. DF degree of freedom