Units of
Concentration
size
units
ppm
per cent
per mil
fl.oz/gallon(UK)
fl.oz/gallon(US)
cu.in/cu.ft
cu.in/cu.yard
drops/gallon(UK)
drops/gallon(US)
drops/cu.ft
oz/pound
oz/ton(UK)
oz/ton(US)
ppm
mL/litre
mL/megalitre
mL/cu.metre
drops/mL
drops/litre
drops/cu.metre
milligrams/kg
grams/kilogram
grams/tonne
significant figures
3
4
5
6
7
8
9
per cent [%}
fl.oz/gallon(US)
per mil [‰]
fl.oz/gallon(UK)
ppm
mL/litre
cu.in/cu.ft
mL/megalitre
cu.in/cu.yard
mL/cu.metre
drops
/gallon(UK)
drops/mL
drops/gallon(US)
drops/litre
drops/cu.ft
drops/cu.metre
oz/pound
milligrams/kg
oz/ton(UK)
grams/kg
oz/ton(US)
grams/tonne