Method for highly precise determination of the proportion of gas flowing into or out of a gas container using scales with a standard weight

摘要

The apparatus includes a coupling device (15) which connects the gas container (10) to a set of scales (2). A further coupling device (29) connects the scales (2) to a standard weight (5) which is no greater than the size of the measurement range defined by filling or emptying the gas container. Preferably, the further coupling device connects the scales successively to several standard weights which are sized as partial weights of the measurement range, the sum of which preferably corresponds to the measurement range. Independent claims also cover a method of measuring the gas quantity.