T25 calculator

The T25 is defined as the chronic dose rate in mg per kg bodyweight per day which will give 25 % of the animals tumours at a specific tissue site, after correction for spontaneous incidence, within the standard life time of that species (see Dybing et al.)

For the calculation of T25 values I developed a calculator. I have provided a picture of it here and you can check it and build your own calculator - I pasted pictures of the Excel formulas into the picture.

You can also mail me on nhadrup@posteo.com and I will send you the calculator, which you can check and adapt for your own use /Niels