Paragraph 39 Manner of use
(1)
Where a material measure of length is marked with a temperature range, it must not be used for trade in temperatures outside that range.
(2)
Where a measure bears an inscription which signifies the manner and purpose of use, it must not be used for trade in a manner or for a purpose which does not accord with that inscription.
(3)
No person shall use a material measure of length for trade in such manner as to expose it to environmental or other influences which may adversely affect its accuracy or function