9.1.5 Trash Items

Trash items represent parts that have been discarded or are no longer in use. Trash items shall not conform to OPC part naming guidelines as defined in ISO/IEC 29500-2 and shall not be associated with a content type. All trash items shall follow the naming scheme: [trash]/HHHH.dat where H represents a hexadecimal digit.

[Example: A package has two parts that must be updated in-place but both parts have grown beyond their growth hints. The newer updated parts are added as new ZIP items while the original parts are renamed to:

[trash]/0000.dat
[trash]/0001.dat

end example]