6 Designation
6.1 Ladders conforming to this International Standard shall be designated by the following indications, in the order given：
a) "Pilot ladder";
b) the number of this International Standard;
c) a capital "S" followed by the number of steps (see table 1); and
d) a capital "L" followed by the length in m.
NOTE Example：
The designation for a 5 m pilot ladder consisting of 15 steps is：
"Pilot ladder ISO 799-S15-L5"
6.2 Spare or additional components shall be designated by reference to the relevant International Standard.
NOTE Example：
The designation of a replacement step according to the International Standard is：
"Step ISO 799"
7 Marking
7.1 The bottom of at least two steps of the ladder shall be marked with：
a) The name and address of the manufacturer;
b) The manufacturer's model designation;
c) The number of this standard, "ISO 799", and "SOLAS";
d) The year of assembly or reassembly of the ladder;
e) Identification of the approving maritime safety administration, along with any approval indications required by the administration; and
f) Identification of the qualified organization designated by the maritime safety administration, if any.
7.2 The bottom of each replacement step shall be marked with：
a) The name and address of the manufacturer;
b) The manufacture's model designation;
c) The words "REPLACEMENT STEP ONLY';
d) The number of this standard, "ISO 799", and "SOLAS";
