ISO 6517:1992 pdf download – Air cargo equipment- Base-restrained certified containers exclusively for the lower deck of high-capacity aircraft. Doors The door opening should be designed to make the maximum possible cross-section available for loading. It shall be possible for one person to open or close the door and any associated net or hardware in no more than I mm for full-width units (L base size), and no more than 15 s for half-width units (K base size).
It shall be poscible to open any type of door without exceeding a height of 1 780 mm (70 in), measured from the underside of the base The door shall be stowable on top of the unit and means of retaining it in the open position should be provided.
The door shall be capable of being opened with a 102 mm (4 in) high obstacle adjacent to the base
Where hinges are used, the design shall not allow lingers to be trapped.
In general, most types of container have only one door situated on a long side of the unit
In some cases, for operational reasons, K-size units may have a door on each long side.
Doors are generally rectangular, but may vary to suit the container contour, the choice of structural shape, or to provide enhanced or a full-width door opening. Handles, straps or hand-holds shall be provided on each door for handling the door and for manual movement of the container These devices shall be able to withstand a 445 daN (1 000 lbf) pull in any direction, and shall be suitable for gripping with a gloved hand These devices shall be designed to cause no damage to adjacent units Door latch and restraint hardware design shall preclude damage to the shell or door during stowage and installation/removal of the door
No tools shall be required to open and close the doors or latches
The door latching and installation mechanisms shall be designed to allow door installation and removal while the container is sitting on uneven surfaces varying by as much as 12,7 mm (0,5 in) over the length of the base. It shall be possible to lock (to discourage entry) and to seal the door so as to give visual indications of unauthorized entry Shelves (optional)
In general, shelves are fitted only into non- rectangular containers that have extended contours with an overhang
outboard edge so that it may be towered to lie on the sloping panel
Alternatively, full-width shelves are fitted at half the unit height Internal cargo restraint
Securing points shall be provided around the interior walls spaced approximately 508 mm (20 in) apart at the following points:
— near the base (not required if equivalent provisions are available at the base),
— at half height, except for K-size units, which shall have securing points at or near the base only.
Each of these points shall be capable of withstanding an omnidirectional load of 1 780 daN (4 000 lbf) near or at the base and 890 daN (2 000 1W) at half height.
These points shall r.omply with ISO 7166 Pressure equalization
A minimum vent area of 5 cm2 per cubic metre (002 in2 per cubic foot) of container internal volume should be provided if the door seal venting area is not sufficIent This vent area shall be adequately protected from cargo load shift to ensure that the minimum area is maintained during emergency operations Rapid decompression
For rapid decompression in the event of an aircraft emergency, the container shall include a minimum vent area of 100 cm/m3 (0.45 sq in/cu It) of container internal volume to become open in a duration of less than 0,2 s when submitted to a maximum pressure differential from inside of 14 kPa (2,0 lb/sq in)
5.1.4 Performance Base indentation (see figure 8) Local indentation of the container base panel
The maximum indentation (permanent set) at any location of the base panel when subjected to a 890 daN (2 000 lbf) force by a steel roller.