and presumably-- if i have a 50 gallon barrel of wine-- and have lost 1.6 quarts of wine-- do to testing, evaportion, seepage (in to the wood) and then add 4 cups--a quart by volume-- of finings.. my barrel--might look fuller-- like it was only .6 quarts under 50 gallons... but could i sell it as that? (legal- not ethical question) or would i have to account for it? and does any one know the word? (for a volume-- )

For weight, in stores-- the different departments have "sample packages" empty to establish tare on the scales..and tare is a very old word-- and the idea that a fifty pound sack of flour-- needed to be adjusted for the weight of the flour sack-- is very old.