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BA 9142 en 02/2015
If multiple types of packaging and/or storage are combined, the procedure for assessing the equivalent
remaining durability period is to be determined according to the following example:
HD
n*equiv
+ (1 *
LD
n*1
HD
n*1equiv
) HD
n
Example:
─ A gear unit is stored exposed outdoors after sea transport, in climatic zone B, while it is kept in
seaworthy packaging
HD
1
= 20 months
(climatic zone:
B, transport method: sea transport, transport packaging: seaworthy packaging,
packaging for storage:
seaworthy packaging, place of storage: exposed outdoors)
─ After 5 months (LD
1
), the gear unit is unpacked, covered with a loose tarpaulin, and placed outdoors
next to the mill.
HD
2
= 4 months
(climatic zone:
B, transport method: sea transport, transport packaging: seaworthy packaging,
packaging for storage:
no packaging, place of storage: covered with loose tarpaulin)
─ HD
2equiv
= ??
HD
2
equiv + (1 *
LD
1
HD
1
) HD
2
HD
2
equiv + (1 *
5
20
) 4
HD
2
equiv + 3months
─ After one additional month (LD
2
), the gear unit is placed outdoors exposed without packaging. Now,
the remaining durability period HD
3equiv
is to be calculated as follows:
Given:
HD
2equiv
= 3 months
(previously calculated)
LD
2
= 1 month
(storage period for preservation HD
2equiv
)
HD
3
= 3 months
(climatic zone:
B, transport kind: sea transport, transport packaging: seaworthy packaging
packaging for storage:
no packaging, place of storage: exposed outdoors)
HD
3equiv
= ??
HD
3
equiv + (1 *
1
3
) 3
HD
3
equiv + 2months
The remaining durability period of the interior gear unit preservation is 2 months after combining the
storage methods as described in the example.