3. The identifiers for gaseous-type fuels are—
where—
(a)the shape is a 90°-angled diamond,
(b)the size of the identifier for placement on a nozzle, a relevant vehicle, or in a user manual must be a minimum width of 13 mm, with an outer line thickness of 1.4 points,
(c)the size of the identifier for placement on a dispenser must be a minimum width of 30 mm, with an outer line thickness of 3.2 points,
(d)the font of the symbol is Arial Bold,
(e)the font size of the symbol is scalable to the size of the shape, but the minimum being 11 points,
(f)the symbol for liquefied petroleum gas according to the relevant standard or equivalent national legislation of the fuel delivered is “LPG”,
(g)the symbol for natural gas or methane supplied as a gas by means of compression according to the relevant standard or equivalent national legislation of the fuel delivered is “CNG”,
(h)the symbol for natural gas or methane that has been liquefied by means of cooling according to the relevant standard or equivalent national legislation of the fuel delivered is “LNG”,
(i)the symbol for hydrogen gas according to the relevant standard or equivalent national legislation of the fuel delivered is “H2”.