Beckman Coulter Navios, Instructions For Use Manual

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773232AH
A-5
Bar-code Specifications
Bar-code Labels
A
Bar-code Labels
A bar code consists of black lines (bars) and white lines (spaces), which are called elements.
There are narrow elements (NE) and wide elements (WE). The bar-code symbology determines their
arrangement.
Table A.1
Bar-Code Symbologies
Bar-Code Type Description
Code 128
(also known as USD-6)
•
Variable length
•
Alphanumerics; 107 character set
•
Self-checking
•
Continuous code; intercharacter space is part of code structure for higher
density of code per square inch; compact bar code
•
Code 128 is recommended by the Clinical and Laboratory Standards Institute
(CLSI) for its accuracy, compact form, and self-checking capabilities
3
•
Code 128B - Maximum 8 alphanumeric characters / Minimum 3 numeric
characters
•
Code 128C - Maximum 16 numeric characters / Minimum 3 numeric
characters
(The use of 15 numeric characters is invalid)
Code 39
(also known as 3-of-9
and USD-3)
•
Variable length
•
Includes 43 data characters; 26 letters (uppercase A-Z), 10 digits (0-9), six
symbols (. $ / + % -) and a space
•
Strong self-checking properties
•
Checksum
•
Discrete code; white spaces are not part of this code
•
Maximum 7 characters
(6 data char 1 checksum character).
Interleaved 2-of-5
(also known as I2 of 5,
USD-1, and USD-1.25)
•
Numerics only
•
Checksum
•
Lower density of code per square inch; longer label
•
Requires an even number of digits to be encoded, a leading “0” must be
added if the number count is odd
•
Fixed 14 characters
(13 data char 1 checksum character).
Codabar
(also known as USD-4
and NW7)
•
Variable length
•
Includes 16 data characters; 10 digits (0-9), and six symbols (. $ / + % -)
•
Has specific start and stop characters which lead to improvement in
readability
•
Checksum
•
Lower density of code per square inch; longer bar code
•
Maximum 10 characters
(9 data char 1 checksum character).