Dangerous goods advice- UK regs and ADR

Hi Dave,

I’ll try and explain what I mean, but of course if you would prefer me to go to PM I will. I’m going on from 8wheels question, if he was to carry UN1202 diesel in say drums with 200 ltr capacity but with only 100 ltrs in each drum, then for the purposes of the load size thresholds would the amount to be used for the calculation be the capacity or the contents? In the past it was definitely the capacity but I can’t see that anywhere in the regulations now. I have access to ADR 2007 so if you had a reference I could find it.

Thanks
Pete.