BA 9142 en 02/2015
4.4.2.2 Combined storage/packaging
If the type of packaging and/or storage is changed within the durability period as HD
1,
which is applicable
to the preservation of the present type of packaging and/or storage, a new HD
2 equiv
has to be determined
as the equivalent remaining durability period applicable as of the date of the change. For this purpose, the
following formula has to be used:
HD
2
equiv
+
(1
*
LD
1
HD
1
)
HD
2
LD
1
= storage period for the existing preservation
HD
1
= maximum durability of the existing preservation according to
HD
2
= maximum durability after the change of the type of storage and/or packaging
according to Table 2 in item 4.4.2.1
HD
2equiv
= maximum remaining durability after the change of the type of storage and/or
packaging
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)
─ Now, the remaining durability period HD
2equiv
has to be calculated as follows.
HD
2
equiv
+
(1
*
LD
1
HD
1
)
HD
2
HD
2
equiv
+
(1
*
5
20
)
4
HD
2
equiv
+
3months
The remaining durability period of the interior gear unit preservation after changing the storage method
3 months.
