Norman Werling asked in USMA 10010: >I would guess that Canada must require milliliters whereas the US must >require ounces and grams. > >I notice that on the one it replaced, a much cheaper and less effective >Kroger cocoa butter lotion the container read: > 16 FL OZ > (1 PT) 473 mL > >So this one, distributed by Kroger, Cincinnati, Ohio, would seem to reflect >the opposite so what is required. > >Both lotions are liquid but with more density than water. What would be the >more logical measure? > >Norm Canada requires volume, presumably because it is easier. Also the same range of cans, bottles, etc. can be used to contain round quantities of products of different densities. If mass were reqired, then if we are to get simple numbers for quantity we must have a different container for each product, or standard containers but multi-digit contents. On a visit to London I paid a courtesy call on the weights and measures official of the Ministry of Trade. She criticized the Canadian practice of contents by volume, while Europe required contents by mass. However, I must add that the British requirement for mass means the drained mass of canned vegetables I believe the American requirement is for the total mass of the can's contents.
