TABLE A-3 Approximate band limits for parallel-plate geometry [Edwards and Nelson (1962), Edwards (1962), Edwards et al. (1967)]

Gas

Band center l, mm

Band center η, cm−1

Band limits η, cm−1a

Lower

Upper

CO2

15

667

667 –

667 +

 

10.4

960

849

1013

 

9.4

1060

1013

1141

 

4.3

2350

2350 –

2430

 

2.7

3715

3715 –

3750

H2O

6.3

1600

1600 –

1600 +

 

2.7

3750

3750 –

3750 +

 

1.87

5350

4620

6200

 

1.38

7250

6200

8100

a  are found for various bands as in Example 9-1. Terms such as  are  from Eq. (17) and Tables 1 and 2 of Edwards and Nelson (1962).