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How to convert Abs to %T and vice versa

Convert Transmittance to Absorbance
 

A=2-log%T
 

Absorbance
(optical density)

Light Transmittance %

0

100

1

10

2

1

3

0.1

4

0.01

5

0.001

6

0.0001


Convert Absorbance Transmittance
 

%T=10 2-A
 

Light Transmittance %

Absorbance
(optical density)

1

2.000

5

1.301

10

1.000

30

0.523

50

0.301

80

0.0969

90

0.0458

 

Download the Excel converter for the Abs to %T.

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