dot as decimal separator and not UCUM dot

[on9cloud]

CDISC has a unit (per 4mL)

the NLM UCUM validator at ​https://lhncbc.github.io/ucum-lhc/demo.html validates this just fine and it is valid.

But there is also unit "per 7.5mL" for that, I need UCUM /7.5mL

how to express decimal multipliers?

[Gunther Schadow]

Since the dot was reserved for multiplication based on early ISO standards, you can use ratios. 75/10.mL. I know it's a bit clunky, but it works.

[Gunther Schadow]

I should correct "2 mg per 7.5 mL" would be "2 mg/75.10/mL" or using parentheses "2 mg/(75/10.mL)"