"So I think both methods are needed for the different usages."
Yes, and to determine the amount of CLO2 in a dose, you need to know the CLO2 concentration in ppm.
The simple math to determine a CLO2 dose in milligrams (mg) is: PPM x VOLUME (of solution in liters)
DOSE = PPM x VOLUME
Example: 3000 ppm x 1 liter (1000 ml) = 3000 mg CLO2
So, 1 ml of 3000 ppm CDS contains 3 mg of CLO2. And, that is for external use OR ingested because CDS does not contain any residual MMS for stomach acid to activate.
One milliliter of CDH3000 also contains 3 mg of CLO2, when not ingested. If ingested, the residual MMS may be activated and produce more CLO2 gas.
MMS1 is different from CDS and CDH. MMS1 has very little CLO2 when activated, about 10% of the total available from MMS. Most of its activation should happen in stomach acid.