GS1-128

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Example GS1-128

GS1-128 is an application standard of the GS1 implementation using the Code 128 barcode specification. The former correct name was UCC/EAN-128. Other no longer used names have included UCC-128 and EAN-128. GS1-128 uses a series of Application Identifiers to include additional data such as best before dates, batch numbers, quantities, weights and many other attributes needed by the user.

Overview[edit]

The GS1-128 standard is an application standard within the Code 128 barcode. It identifies data with Application Identifiers (AI). Without spaces below, a simple SSCC (Serial Shipping Container Code) barcode would look something like this:

[FNC1] 00 12345678 0000000001

In the example above, [FNC1] is the single character Function Code 1, which specifies that a Code 128 barcode is a GS1-128 code. 00 is the serial shipping container code ("SSCC") AI that designates the following data as a serial shipping container code. 12345678 is the company number. 0000000001 is the container number.

It is possible to encode several pieces of data in one barcode. For example a product serial number (application identifier code 21), production date (code 11), and expiration date (code 17) together would look something like this:

[FNC1] 21 12345 [FNC1] 11 090101 17 100101

An additional FNC1 is required before the production date, because the preceding product serial number is variable length. This is not required before the expiration date, because the production date is fixed length. Reordering the components to place a variable-length field last produces a more compact form:

[FNC1] 11 090101 17 100101 21 12345

Mapping to EPC codes[edit]

As EPC and EAN respectively UCC as code systems are not congruent, GS1-128 gets mapped to EPC-GTIN with a reference list including both codes per type of product. However, there is no mapping for the serial number with EPC-SGTIN.

Full list of Application Identifiers[edit]

Because code 128 is more efficient at coding pairs of digits, preference is given to even lengths in numeric fields.

All dates are formatted as YYMMDD.

y in the AI gives a number of decimal places in the following value. The represented value is the following integer divided by 10y. For example, a net weight of 22.7 kg could be coded as 3101 000227, 3102 002270, 3103 022700, or 3104 227000.

Code Description data length (without AI)
00 Serial Shipping Container Code (SSCC) 18
01 Global Trade Item Number (GTIN) 14
02 GTIN of Contained Trade Items 14
10 Batch/Lot Number variable, up to 20
11 Production Date 6
12 Due Date 6
13 Packaging Date 6
15 Best before date (YYMMDD) 6
17 Expiration Date 6
20 Product Variant 2
21 Serial Number variable, up to 20
22 Secondary Data Fields variable, up to 29
23n Lot number n variable, up to 19
240 Additional Product Identification variable, up to 30
241 Customer Part Number variable, up to 30
242 Made-to-Order Variation Number variable, up to 6
250 Secondary Serial Number variable, up to 30
251 Reference to Source Entity variable, up to 30
253 Global Document Type Identifier variable, 13F17
254 GLN Extension Component variable, up to 20
30 Count of items variable, up to 8
310y Product Net Weight in kg 6
311y Product Length/1st Dimension, in meters 6
312y Product Width/Diameter/2nd Dimension, in meters 6
313y Product Depth/Thickness/Height/3rd Dimension, in meters 6
314y Product Area, in square meters 6
315y Product Net Volume, in liters 6
316y Product Net Volume, in cubic meters 6
320y Product Net Weight, in pounds 6
321y Product Length/1st Dimension, in inches 6
322y Product Length/1st Dimension, in feet 6
323y Product Length/1st Dimension, in yards 6
324y Product Width/Diameter/2nd Dimension, in inches 6
325y Product Width/Diameter/2nd Dimension, in feet 6
326y Product Width/Diameter/2nd Dimension, in yards 6
327y Product Depth/Thickness/Height/3rd Dimension, in inches 6
328y Product Depth/Thickness/Height/3rd Dimension, in feet 6
329y Product Depth/Thickness/3rd Dimension, in yards 6
330y Container Gross Weight (kg) 6
331y Container Length/1st Dimension (Meters) 6
332y Container Width/Diameter/2nd Dimension (Meters) 6
333y Container Depth/Thickness/3rd Dimension (Meters) 6
334y Container Area (Square Meters) 6
335y Container Gross Volume (Liters) 6
336y Container Gross Volume (Cubic Meters) 6
340y Container Gross Weight (Pounds) 6
341y Container Length/1st Dimension, in inches 6
342y Container Length/1st Dimension, in feet 6
343y Container Length/1st Dimension in, in yards 6
344y Container Width/Diameter/2nd Dimension, in inches 6
345y Container Width/Diameter/2nd Dimension, in feet 6
346y Container Width/Diameter/2nd Dimension, in yards 6
347y Container Depth/Thickness/Height/3rd Dimension, in inches 6
348y Container Depth/Thickness/Height/3rd Dimension, in feet 6
349y Container Depth/Thickness/Height/3rd Dimension, in yards 6
350y Product Area (Square Inches) 6
351y Product Area (Square Feet) 6
352y Product Area (Square Yards) 6
353y Container Area (Square Inches) 6
354y Container Area (Square Feet) 6
355y Container Area (Square Yards) 6
356y Net Weight (Troy Ounces) 6
357y Net Weight/Volume (Ounces) 6
360y Product Volume (Quarts) 6
361y Product Volume (Gallons) 6
362y Container Gross Volume (Quarts) 6
363y Container Gross Volume (U.S. Gallons) 6
364y Product Volume (Cubic Inches) 6
365y Product Volume (Cubic Feet) 6
366y Product Volume (Cubic Yards) 6
367y Container Gross Volume (Cubic Inches) 6
368y Container Gross Volume (Cubic Feet) 6
369y Container Gross Volume (Cubic Yards) 6
37 Number of Units Contained variable, up to 8
390y Amount payable (local currency) variable, up to 15
391y Amount payable (with ISO currency code) variable, 3–18
392y Amount payable per single item (local currency) variable, up to 15
393y Amount payable per single item (with ISO currency code) variable, 3–18
400 Customer Purchase Order Number variable, up to 30
401 Consignment Number variable, up to 30
402 Bill of Lading number 17
403 Routing code variable, up to 30
410 Ship To/Deliver To Location Code (Global Location Number) 13
411 Bill To/Invoice Location Code (Global Location Number) 13
412 Purchase From Location Code (Global Location Number) 13
413 Ship for, Deliver for, or Forward to Location Code (Global Location Number) 13
414 Identification of a physical location (Global Location Number) 13
420 Ship To/Deliver To Postal Code (Single Postal Authority) variable, up to 20
421 Ship To/Deliver To Postal Code (with ISO country code) variable, 3–15
422 Country of Origin (ISO country code) 3
423 Country or countries of initial processing variable, 3–15
424 Country of processing 3
425 Country of disassembly 3
426 Country of full process chain 3
7001 NATO Stock Number (NSN) 13
7002 UN/ECE Meat Carcasses and cuts classification variable, up to 30
7003 expiration date and time 10
7004 Active Potency variable, up to 4
703n Processor approval (with ISO country code); n indicates sequence number of several processors variable, 3–30
8001 Roll Products: Width/Length/Core Diameter/Direction/Splices 14
8002 Mobile phone identifier variable, up to 20
8003 Global Returnable Asset Identifier variable, 14–30
8004 Global Individual Asset Identifier variable, up to 30
8005 Price per Unit of Measure 6
8006 identification of the components of an item 18
8007 International Bank Account Number variable, up to 30
8008 Date/time of production variable, 8–12
8018 Global Service Relation Number 18
8020 Payment slip reference number variable, up to 25
8100 Coupon Extended Code: Number System and Offer 6
8101 Coupon Extended Code: Number System, Offer, End of Offer 10
8102 Coupon Extended Code: Number System preceded by 0 2
8110 Coupon code ID (North America) variable, up to 30
90 Mutually Agreed Between Trading Partners variable, up to 30
91–99 Internal Company Codes variable, up to 30

External links[edit]