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.
