- Quantity per substance: Net weight of the weclapp item times the quantity in the parcel, summed per UN number. If the same item appears in several bill of materials lines, it only counts once.
- Factor: The points factor for the UN number comes from the DPD dangerous goods database; you don't maintain it yourself.
- LQ doesn't count: Lines that ship as limited quantities enter the total with zero points.
- Note: The point total and the matching exemption note are suggested in the transport document. Check the note before shipping.
Why net rather than gross counts and where the density factor applies: Net weight and density factor.