This legislation has been repealed.
A package containing prepacked yarn or cotton wool that is not a hermetically-sealed package may be marked with the words ‘net mass at standard condition' or with other words that have a similar meaning to those words if—
(a) the words are marked in the same way as the appropriate measurement marking; and
(b) when the yarn or cotton wool is composed of a mixture of fibres—the package is also marked in the same way as the appropriate measurement marking with a correct statement of the proportion by mass of each of the kinds of fibre of which the yarn or cotton wool is composed.