6 Designation and marking
6.1 Designation
The following characters shall be used:
"A" is used to designate a fire-resistant type of fuel hose.
"1" is used to designate a fuel hose with a fuel permeation rate of 4 g/(m2.h) or less.
"2" is used to designate a fuel hose with a fuel permeation rate over 4 g/(m2.h) up to and including 12g/(m2.h).
6.2 Marking
To comply with this International Standard a hose shall be marked, at least every 0,3 m, with
- the name or trademark of the manufacturer or supplier;
- the last two figures of the year of manufacture;
- "ISO 7840 - A1" or "ISO 7840 - A2", as specified in 6.1 .
The marking shall be in letters and figures at least 3 mm high and shall withstand washing with ordinary detergents.
Additional information may be included in the marking.
