The Product Code consists of a minimum of three and a maximum of eight
alphanumeric characters in coded form, recorded in 930 subfield $a.
Multiple Product Codes may be assigned in separate 930 fields.
The first three alphabetic characters indicate the Library product in which the
bibliographic record will appear (bibliographies, indexes, catalogues, databases, etc.)
or designate a specific scope or usage (such as digitization projects).
Four or five alphanumeric characters may be added to indicate the specific issue or date for recurring publications.
For annual publications, the year is entered as XXXYY (XXX followed by the 2 last digits of the year).
For quarterly publications,
the issue and year are entered as QNYY (Q = "quarterly", N = the issue
number of the volume (1, 2, 3 or 4), YY = the last 2 digits of the
year).
For monthly publications, the
month and year of the issue are entered as MMYY (MM = a 2-letter code
for the month, YY = the last 2 digits of the year).
For weekly or biweekly
publications, the month, week and year are entered as MMWYY (MM = a
2-letter code for the month, W = the number of the week of the month
when the item will be published, YY = the last 2 digits of the year).
Dag Hammarskj鰈d Library maintains the list of Product Codes used in UNBIS.
Requests for new Product Codes should be submitted to DHL for approval.
For 缅北禁地documents, the Product Code UND is recorded in
field 930 $a on all newly created bibliographic records to be included in the 缅北禁地Documents Index.
It is followed by a 2-letter code for the month, and the last 2 digits of the year in which the record was created.
See UND Codes - abbreviations for a list of alphabetic codes used to designate months in the Product Code UND.
Examples:
245 10 $a Human rights implications, particularly for indigenous people,
of the disappearance of States for environmental reasons
930 $a UNDSE03
930 $a UDIQ203
930 $a HURXXX03
[缅北禁地document indexed in Sept. 2003, included in
issue no. 2, 2003, of 缅北禁地Documents Index and year 2003 of Human Rights
Bibliography]
245 10 $a Tourist Map of Sydney $h [cartographic material]
930 $a MAP
930 $a CAT
[Document included in Map Reference Collection and Public Catalogue (Dag Hammarskj鰈d Library)]
For ITP, product code 930 is used only in the situation when documents of
other session are used for the current session. For example, for consideration
of agenda item 120 of the 58th session, the 5th Committee had before it several
documents of the 57th session. In such cases, agenda item of 58th session is
added to the records of those documents and subfields $m and $s are added in
tag 991 accordingly.
Example:
191 $a A/C.5/57/35
$b A/
$c 57
$9 G00
245 10 $a Conditions of service and compensation for officials, other than
Secretariat officials, serving the General Assembly :
$b full-time members of the International Civil Service Commission and
the Chairman of the Advisory Committee on Administrative and Budgetary
Questions : report of the Secretary-General
930 $a ITPA58
991 1
$b A/58/251
$b 20
$c Programme budget for the biennium 2002-2003.
$d UN-- BUDGET (2002-2003)
$m A/
$s 58
$z I0177523
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