1d-industrial

Codabar (NW-7) (Codabar)

Discrete numeric linear symbology with 4 selectable start/stop characters (A, B, C, D), historically standard across blood banks, transfusion centers, medical pathology labs, and FedEx airbills.

Governing Specification: ANSI/AIM BC3-1995

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Data Format & Required Fields

Encodes digits 0-9 and six symbols (- $ : / . +) flanked by start/stop delimiters (A, B, C, or D). Tolerates low-precision matrix printing.

Allowed Character SetDigits and symbols (- $ : / . +) enclosed by start/stop letters (A, B, C, or D).

Payload Length Rule Between 3 and 32 characters

Example Valid FormatA123456789B

Industry Guidance & Practical Applications

Blood bag donor and unit identification (ISBT 128 predecessor)
Clinical pathology specimen collection tubes and laboratory vials
Library book cataloging and air express courier waybills

Packaging & Scanning Notes: Widely known as NW-7 in Japan and East Asian healthcare logistics.

Symbol Constraints & Label Guidelines

Limited to numeric digits and basic symbols; does not support full alphanumeric text.