Kallitype Toning Question

When using Kodak’s Concentrated Rapid Selenium Toner, how much should I use in 1000Ml of distilled water?

I know that Sandy King’s excellent article in Unblinking Eye says to use 10 ML of Kodak Selenium to 1000 Ml of distilled water but since I have CONCENTRATED rapid selenium toner I am a little confused as to how much to use.

Thanks!!