085 - Synthesized Classification Number Components (R)
MARC 21 Bibliographic - Full
October 2008
First Indicator
Undefined
# - Undefined
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Second Indicator
Undefined
# - Undefined
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Subfield Codes
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$a - Number where instructions are
found-single number or beginning number of span (R)
$b - Base number (R)
$c - Classification number-ending number of span (R)
$f - Facet designator (R)
$r - Root number (R)
$s - Digits added from classification number in schedule or
external table (R)
$t - Digits added from internal subarrangement or add table
(R) |
$u - Number being analyzed (R)
$v - Number in internal subarrangement or add table where
instructions are found (R)
$w - Table identification-Internal subarrangement or add
table (R)
$y - Table sequence number for internal subarrangement or
add table (R)
$z - Table identification (R)
$6 - Linkage (NR)
$8 - Field link and sequence number (R) |
FIELD DEFINITION AND SCOPE
Information about how a synthesized classification number or
a portion of a synthesized classification number was built. It
traces the different components of a synthesized number,
showing the different portions of the number and where the add
instructions are given. If a number was built using two or more
instructions, a separate field 085 is given for each
instruction.
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
- Both indicators are undefined; each contains a blank
(#).
■ SUBFIELD CODES
$a - Number where instructions are found-single
number or beginning number of span
$b - Base number
Base classification number to which one or more other
numbers are added. In many instances it may be the same as
subfield $a. When two or more additions are used to build
one number, the base number for the second and following
085 fields is the number resulting from the immediately
preceding addition.
$c - Classification number-ending number of
span
Ending number of a classification number span under which
an internal subarrangement or add instructions are found.
$f - Facet designator
Extra character(s) to be added to classification numbers
that indicate facets.
$r - Root number
Initial digits of the pattern number or span when these
digits are not added. If this subfield is present, subfield
$s or $t must also be present to specify the digits that
are added.
$s - Digits added from classification number in
schedule or external table
Digits that have been added from a classification number in
a schedule or external table to make up the synthesized
number.
$t - Digits added from internal subarrangement or add
table
Digits that have been added from an internal subarrangement
or add table to make up the synthesized number.
$u - Number being analyzed
Repeated when the same 085 field is applicable to more than
one number appearing in the same record.
$v - Number in internal subarrangement or add table
where instructions are found
Number (single number or beginning number of span) in an
internal subarrangement or add table under which add
instructions are found.
$w - Table identification-Internal subarrangement or
add table
Classification number (single number or beginning number of
span) under which an internal subarrangement or add table
is found.
$y - Table sequence number for internal
subarrangement or add table
Sequence number or other identifier for an internal
classification subarrangement or add table. If the first or
only add table found at a classification number is the
number 1, and succeeding integers are used for any
following add tables found at that number.
$z - Table identification
Identifies the table used in building a number. For a
classification number span, subfield $z is given only once,
before the first number.
$8 - Field link and sequence number
■ EXAMPLES
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| 082 |
00$81$a346.0469516$222 |
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085 |
##$81.1$b346.046
$a346.046$r333$s95 |
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085 |
##$81.1$b346.046
$a346.046$r333$s95
The Dewey number in the 082 field--346.0469516--means
law providing for government control and regulation of
biological resources for the sake of conserving them. The
first 085 field shows that the number 346.04695 was built
with 346.046 Law of government control and regulation of
specific kinds of natural resources plus 95 from 333.95
Biological resources, following the instructions at
346.046. The second 085 field shows that the number
346.0469516 was built with 346.04695 plus 16 Conservation
from the first add table under 333.7-333.9, as instructed
under 333.7-333.9. |
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| 082 |
04$81$a599.0994$c22 |
| 083 |
0#$82$a
598.0994$222 |
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085 |
##$81.1$b599
$z1$s09 |
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085 |
##$81.2$b599.09
$z1$a093$c099
$z2$s94 |
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085 |
##$82.1$b598
$z1$s09 |
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085 |
##$82.2$b598.09
$z1$a093$c099
$z2$s94
The first two 085 fields show how the Dewey number in
the 082 field - 599.0994 - was built. The first 085 field
shows that 599.09 was built with 599 Mammals plus 09
Geographic treatment from Table 1 Standard subdivisions.
The second 085 field shows that 599.0994 was built with
599.09 plus 94 Australia from Table 2 Areas, following
instructions at 093-099 in Table 1. The second t wo 085
fields show how the Dewey number in the 083 field -
598.0994 - was built. |
INPUT CONVENTIONS
Dewey Decimal Classification - Primary use
for this field is for the Dewey Decimal
Classification, which is based on the concept of number
building. Field 085 is repeated each time an addition is made
to the base number.
Order of subfields - For the Dewey
Decimal Classification the base number (subfield $b) is
always given first, followed by the location of add
instructions (subfields $a and $c). When there are multiple
additions to a synthesized number, a cumulative base number
(the number which resulted from the previous addition) is
used in subfield $b of the following 085 field. This field
includes instructions about how many zeros to add for
standard subdivisions. In these cases, the zeros are recorded
in subfield $f (Facet designator).