links .....

Ref 1. These links are primarily an introduction to film sensitometry:

Sensitometry for students
Sensitometry Part 1 from Phil Davis
Kodak Sentitometry and Basic Characteristics of Film
Kodak Sensitometry Workbook

Ref 2. "Controls in Black and White Photography", Henry, Richard J,
2nd edition, Focal Press,1986 ISBN 0-240-51788-1
(A classic on most aspects of B&W processing)

Ref. 3 "Practical Sensitometry", Wakefield, George L,
1st edition, Fountain Press, 1970 ISBN 0 852 42310 1

Ref. 4 "Photographic Processing Chemistry", Mason, L.F.A,
Focal Press, 1966

Ref. 5 "Exposure Manual", Dunn J.F. Wakefield G.L.
Fountain Press, 1981 ISBN 0 85242 361 6