26.10 National ISBT 128 definitions
National bodies are permitted to allocate nationally defined codes commencing with '&' and a lower-case alpha character. Within the UK this responsibility lies with SACIT.
The following national codes have been assigned which will be applied in tissue labelling.
'&a': short form unit identifier (Type 1)
Defined for the shortened form of a donation number used on demand-printed status labels for concatenated read with the donation number as part of label verification or on expiry date labels which are demand-printed independently of the status label. This code must not be used for any other purpose.
The code structure is:
&annnnnn
Where:
'nnnnnn' is the six-digit unit serial number from the ISBT 128 donation number definition.
'&b': short form unit identifier (Type 2)
Defined for the shortened form of a donation number used on demand-printed group labels for concatenated read with the donation number as part of label verification. This code must not be used for any other purpose. The code structure is:
&bnnnnnnk
Where:
'nnnnnn' is the six-digit unit serial number from the ISBT 128 donation number definition
'k' is a single-digit iteration number used to assist in controlling labelling where more than one labelling process takes place (for example, an additional group label has to be placed over the initial label to display additional testing information such as CMV status).
Table 26.2 Glossary: uniform labelling of human tissue products| ICCBBA | International Council for Commonality in Blood Banking Automation Inc. |
|---|
| ISBT | International Society of Blood Transfusion |
|---|
| SACTSC | Standing Advisory Committee on Tissues and Stem Cells |
|---|
| SACIT | Standing Advisory Committee on Information Technology |
|---|
| UKBTS | United Kingdom Blood Transfusion Services |
|---|
| UKCS | The United Kingdom Consensus Standard for ISBT128 |
|---|
| Check digits | The barcoded check digits are machine-readable. They are calculated using the ISO 7064 Mod 37, 2 algorithm |
|---|
| Check character | The check character is eye-readable and is determined by cross-mapping the check sum against the ISO 7064 check values. It is always a single character. |
|---|
References
Report of the Committee for Commonality in Blood Banking Automation (CCBBA) July 1977
ISBT 128 Technical Specification
Uniform Symbology Specification: Code 128. (AIM USA) June 1993
ICCBBA Technical Bulletin 5