Fields present

Fields present

Warning

Analysis is based on a copy of BLL60 dating to March 2023, so may be out of date

The table below lists all fields found in BLL60, along with:

• The number of records in which the field is found
• The total number of instances of the field

Invalid field tags are marked with a red exclamation mark ❗

Fields which are valid for the holdings format, but which are not normally used by the BL are marked with an asterisk ✳️

Table of fields (click to expand)

Field tag	Name	Type	Obsolete?	Number of records	Number of fields
001	Control Number	Control field		18515671	18515671
003	Control Number Identifier	✳️ Control field		59	59
004	Control Number for Related Bibliographic Record	Control field		18515653	18515653
005	Date and Time of Latest Transaction	Control field		18515671	18515671
007	Physical Description Fixed Field	Control field		72425	72425
008	Fixed-Length Data Elements	Control field		18515668	18515668
009	Document Supply Information Codes	Local control field		406122	406127
016	National Bibliographic Agency Control Number	✳️ Data field		1	1
020	International Standard Book Number	✳️ Data field		3	5
035	System Control Number	✳️ Data field		2	2
040	Record Source	✳️ Data field		20	20
041 ❗		❗ INVALID FIELD TAG		2	2
042 ❗		❗ INVALID FIELD TAG		17	17
043 ❗		❗ INVALID FIELD TAG		1	1
050 ❗		❗ INVALID FIELD TAG		1	1
052 ❗		❗ INVALID FIELD TAG		2	2
56 ❗		❗ INVALID FIELD TAG		1	1
057 ❗		❗ INVALID FIELD TAG		1	1
072 ❗		❗ INVALID FIELD TAG		1	1
86 ❗		❗ INVALID FIELD TAG		1	1
100 ❗		❗ INVALID FIELD TAG		1	1
101 ❗		❗ INVALID FIELD TAG		1	1
200 ❗		❗ INVALID FIELD TAG		1	1
240 ❗		❗ INVALID FIELD TAG		1	1
245 ❗		❗ INVALID FIELD TAG		5	5
246 ❗		❗ INVALID FIELD TAG		1	1
260 ❗		❗ INVALID FIELD TAG		2	2
264 ❗		❗ INVALID FIELD TAG		1	1
300 ❗		❗ INVALID FIELD TAG		4	4
336 ❗		❗ INVALID FIELD TAG		1	1
337	Media Type	✳️ Data field		2	2
338	Carrier Type	✳️ Data field		2	2
340 ❗		❗ INVALID FIELD TAG		2	2
362 ❗		❗ INVALID FIELD TAG		1	1
440 ❗		❗ INVALID FIELD TAG		1	2
490 ❗		❗ INVALID FIELD TAG		1	1
500 ❗		❗ INVALID FIELD TAG		15	15
501 ❗		❗ INVALID FIELD TAG		3	3
504 ❗		❗ INVALID FIELD TAG		2	2
506	Restrictions on Access Note	✳️ Data field		52	52
521 ❗		❗ INVALID FIELD TAG		1	1
531 ❗		❗ INVALID FIELD TAG		1	1
536 ❗		❗ INVALID FIELD TAG		1	1
538	System Details Note	✳️ Data field		45	45
540 ❗		❗ INVALID FIELD TAG		1	1
541	Immediate Source of Acquisition Note	✳️ Data field		158	160
546 ❗		❗ INVALID FIELD TAG		1	1
561	Ownership and Custodial History	Data field		112152	118882
562	Copy and Version Identification Note	Data field		47355	49152
563	Binding Information	Data field		20733	20774
566 ❗		❗ INVALID FIELD TAG		1	1
580 ❗		❗ INVALID FIELD TAG		1	1
581 ❗		❗ INVALID FIELD TAG		1	2
582 ❗		❗ INVALID FIELD TAG		1	1
583	Action Note	Data field		584371	584376
585 ❗		❗ INVALID FIELD TAG		4	4
589	Acquisitions Comment	Local data field	obsolete	30159	30161
590	Local note	Local data field		71937	71978
595 ❗		❗ INVALID FIELD TAG		1	1
596 ❗		❗ INVALID FIELD TAG		405	405
597 ❗		❗ INVALID FIELD TAG		1	1
600 ❗		❗ INVALID FIELD TAG		1	2
648 ❗		❗ INVALID FIELD TAG		1	1
650 ❗		❗ INVALID FIELD TAG		5	6
651 ❗		❗ INVALID FIELD TAG		3	4
652 ❗		❗ INVALID FIELD TAG		7	8
653 ❗		❗ INVALID FIELD TAG		1	1
655 ❗		❗ INVALID FIELD TAG		1	2
690 ❗		❗ INVALID FIELD TAG		11	11
695 ❗		❗ INVALID FIELD TAG		1	1
700 ❗		❗ INVALID FIELD TAG		4	4
830 ❗		❗ INVALID FIELD TAG		3	3
843	Reproduction Note	Data field		595688	595692
845	Terms Governing Use and Reproduction Note	Data field		625284	625284
851 ❗		❗ INVALID FIELD TAG		1	1
852	Location	Data field		18509818	18510016
853	Captions and Pattern - Basic Bibliographic Unit	Data field		52606	105085
854	Captions and Pattern - Supplementary Material	Data field		13	26
855	Captions and Pattern - Indexes	✳️ Data field		8	13
856	Electronic Location and Access	Data field		574	581
857	Electronic Archive Location and Access	✳️ Data field		1	1
859 ❗		❗ INVALID FIELD TAG		1	1
861 ❗		❗ INVALID FIELD TAG		1	1
862 ❗		❗ INVALID FIELD TAG		2	2
863	Enumeration and Chronology - Basic Bibliographic Unit	Data field		200	299
865	Enumeration and Chronology - Indexes	✳️ Data field		1	1
866	Textual Holdings - Basic Bibliographic Unit	Data field		1268534	1268584
867	Textual Holdings - Supplementary Material	✳️ Data field		2	2
868	Textual Holdings - Indexes	✳️ Data field		3	3
876	Item Information - Basic Bibliographic Unit	✳️ Data field		13	13
880	Alternate Graphic Representation	✳️ Data field		3	7
886 ❗		❗ INVALID FIELD TAG		3	3
903	SFX link	Local data field		2033948	2033948
938 ❗		❗ INVALID FIELD TAG		1	1
945 ❗		❗ INVALID FIELD TAG		1	1
948 ❗		❗ INVALID FIELD TAG		3	3
956 ❗		❗ INVALID FIELD TAG		5	5
957	Acquisitions Data	Local data field		47048	47575
958	Superseded Shelfmark	Local data field		435081	445172
967 ❗		❗ INVALID FIELD TAG		1	1
972	Reproduction Note	Local data field		625284	625284
979 ❗		❗ INVALID FIELD TAG		1	1
980	? Card production identifier ?	Local data field		593502	643527
985	? Cataloguer's note ?	Local data field		340	356
989 ❗		❗ INVALID FIELD TAG		1	1
994 ❗		❗ INVALID FIELD TAG		2	2
999 ❗		❗ INVALID FIELD TAG		787	787
`01 ❗		❗ INVALID FIELD TAG		1	1
006 ❗		❗ INVALID FIELD TAG		1	1
00E ❗		❗ INVALID FIELD TAG		2	2
019 ❗		❗ INVALID FIELD TAG		1	1
021 ❗		❗ INVALID FIELD TAG		13	13
029 ❗		❗ INVALID FIELD TAG		1	1
0O8 ❗		❗ INVALID FIELD TAG		1	1
85Y ❗		❗ INVALID FIELD TAG		1	1
8SM ❗		❗ INVALID FIELD TAG		1	1
A01 ❗		❗ INVALID FIELD TAG		1	1
A05 ❗		❗ INVALID FIELD TAG		7	7
A52 ❗		❗ INVALID FIELD TAG		7	7
ACN ❗		❗ INVALID FIELD TAG		1	1
AKR ❗		❗ INVALID FIELD TAG		1	1
AQN	Acquisitions Notes Field	Local data field		157884	163718
AT ❗		❗ INVALID FIELD TAG		1	1
B01 ❗		❗ INVALID FIELD TAG		1	1
BUF ❗		❗ INVALID FIELD TAG		4	4
C52 ❗		❗ INVALID FIELD TAG		12	12
CAT	Cataloguer	Aleph data field		18515671	49588262
cat ❗		❗ INVALID FIELD TAG		1	1
CCS	CCS-Supplied Identifier	Local data field		824	824
CFI ❗		❗ INVALID FIELD TAG		1	1
CNC	Cancellation Notes	Local data field	obsolete	337731	337734
CTR	Acquisitions Country Code ID	Local data field		747418	747426
D01 ❗		❗ INVALID FIELD TAG		7	7
DAT	De-suppression date	Local control field		3810	3810
E01 ❗		❗ INVALID FIELD TAG		4	4
E08 ❗		❗ INVALID FIELD TAG		1	1
E52 ❗		❗ INVALID FIELD TAG		1	1
EC ❗		❗ INVALID FIELD TAG		1	1
EKR ❗		❗ INVALID FIELD TAG		3	3
EXP ❗		❗ INVALID FIELD TAG		1	1
FIN ❗		❗ INVALID FIELD TAG		75	82
FMT	Format	Aleph control field		18515671	18515671
G01 ❗		❗ INVALID FIELD TAG		1	1
G61 ❗		❗ INVALID FIELD TAG		1	1
G62 ❗		❗ INVALID FIELD TAG		1	1
GKR ❗		❗ INVALID FIELD TAG		9	9
HMN ❗		❗ INVALID FIELD TAG		3	3
I01 ❗		❗ INVALID FIELD TAG		2	2
J01 ❗		❗ INVALID FIELD TAG		1	1
L R ❗		❗ INVALID FIELD TAG		1	1
L52 ❗		❗ INVALID FIELD TAG		3	3
LCR ❗		❗ INVALID FIELD TAG		1	1
LET ❗		❗ INVALID FIELD TAG		1	1
LKR	Link	Aleph data field		18515667	18515667
M01 ❗		❗ INVALID FIELD TAG		1	1
NPA ❗		❗ INVALID FIELD TAG		1	1
NPL ❗		❗ INVALID FIELD TAG		1	1
NQN ❗		❗ INVALID FIELD TAG		1	1
OA1 ❗		❗ INVALID FIELD TAG		1	1
P01 ❗		❗ INVALID FIELD TAG		8	8
PKR ❗		❗ INVALID FIELD TAG		13	13
Q01 ❗		❗ INVALID FIELD TAG		2	2
SF= ❗		❗ INVALID FIELD TAG		2	2
SID ❗		❗ INVALID FIELD TAG		2	2
SMK	Suppressed Location	Local data field		3848	3848
SML ❗		❗ INVALID FIELD TAG		1	1
SMS	Shelfmark Sequence number	Local data field	obsolete	0	0
SNK ❗		❗ INVALID FIELD TAG		1	1
SRC ❗		❗ INVALID FIELD TAG		1	1
STA	Status	Aleph data field		90881	91042
TAG ❗		❗ INVALID FIELD TAG		1	1
TEM ❗		❗ INVALID FIELD TAG		1	1
TOC ❗		❗ INVALID FIELD TAG		1	1
X01 ❗		❗ INVALID FIELD TAG		2	2
XXX ❗		❗ INVALID FIELD TAG		1	1

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Fields used in 'standard' BL records

The following fields are expected in all BLL60 records:

• Leader
• 001
• 004
• 005
• 008
• FMT
• LKR

One or more of:

• CAT

And at least one of:

• 852
• 856

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Count of of invalid and obsolete field tags

The table below lists the number of records, and the number of fields, containing invalid or obsolete fields field tags, broken down into the 18 files which make up the BLL60 export.

See recommendations page for suggested actions.

File	Number of records	Number of fields
1	1	1
2	4	4
3	1	1
4	6	6
5	6	6
6	0	0
7	4	5
8	1	1
9	8	9
10	5	5
11	6	6
12	13	14
13	12	12
14	12	14
15	10	10
16	1	1
17	35	61
18	14	15
19	11	13
20	24	24
21	29	40
22	20	26
23	42	44
24	47	48
25	1,179	1,203
TOTAL	1,491	1,569

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Fields not present

The following fields are defined, but are either (a) not used in BLL60, or (b) not exported from Aleph

Table of fields (click to expand)

Field tag	Name	Type	Obsolete?
010	Library of Congress Control Number	Data field
014	Linkage Number	Data field
017	Copyright or Legal Deposit Number	Data field
022	International Standard Serial Number	Data field
023	Cluster ISSN	Data field
024	Other Standard Identifier	Data field
027	Standard Technical Report Number	Data field
030	CODEN Designation	Data field
066	Character Sets Present	Data field
347	Digital File Characteristics	Data field
361	Structured Ownership and Custodial History	Data field
841	Holdings Coded Data Values	Data field
842	Textual Physical Form Designator	Data field
844	Name of Unit	Data field
864	Enumeration and Chronology − Supplementary Material	Data field
877	Item Information − Supplementary Material	Data field
878	Item Information − Indexes	Data field
883	Metadata Provenance	Data field
884	Description Conversion Information	Data field
SMS	Shelfmark Sequence number	Local data field	obsolete