Agfa isopan ISS

I purchased a camera that had a used roll of film in it, Agfa isopan ISS. Any ideas on how to process this film? Will the type of chemistry make a difference? We have sprint at school, but I could get something else.
Any thoughts on this will be appreciated.
Lynda
P.S. the camera was a minispeed!

I used this film in my youth, it was just a standard German 21 Din (now ISO100/21) Black and White film, the equivalent of Ilford FP3.

Process it as a normal 100 ISO film like AGFA AP100 or FP4 in a standard fine grain developer like ID11(D76), Xtol etc.

Ian

Ian, thank-you! Does the age of the film affect the development time? I searched old posts before I asked about this and they mention -age fogged and to change the time to compensate, rather confused me.
Lynda

Lynda, yes it would probably be advisable to give an extra 15%-20% development. This will boost the contrast a little making the film easier to print if there is a slight base fog from ageing.

Ian

Agfa Isopan I.S.S

Going on the information in my 1949 copy of 35mm By H.S. Newcombe (focal Press)
The book lists Agfa Isopan I.S.S. as a group C film (very fast films 30 to 32 Sch.)

The development time given for films of this group are
Kodak D76 25mins @ 18 degC
Kodak D23 25mins @ 18 degC
Dupont N.D.2 13 mins @ 18 degC

The book also lists many other developers and the formulae to make them up.

I would recommend doing a clip test before developing the whole roll.

If you get anything interesting from the roll share them here.

I developed a 35mm roll or Kodak Super XX pan that was exposed in 1947 ( the details had been recorded on the leader) unfortunately the whole roll turned out completely black, I was expecting this as super XX pan was a fast film and it was exposed 60 years ago.

Hope this helps

Charlie