GB 12904-2008Bar code for commodity -- Retail commodity numbering and bar code marking (English PDF)

4.1 Code Structure

4.1.1 13 code structure

4.1.1.1 Composition

Consists of vendor identification code, commodity item code, check code three parts of the 13-digit code is divided into four structures, the structure shown in Table 1.

Table 1 13-bit code structure

Configuration type vendor identification code commodity item code check code

A structure X13X12X11X10X9X8X7 X6X5X4X3X2 X1

Structured titanium X13X12X11X10X9X8X7X6 X5X4X3X2 X1

Structure three X13X12X11X10X9X8X7X6X5 X4X3X2 X1

Structure four X13X12X11X10X9X8X7X6X5X4 X3X2 X1

4.1.1.2 Manufacturer Identification Code

Vendor identification code consists of 7 to 10 digits, Article Numbering Center of China is responsible for the allocation and management.

The first 3-digit code for the vendor identification code prefix code, EAN International has been assigned to the Article Numbering Center of China as a prefix code

690 to 695. EAN International has been assigned to the state (or regional) organizations prefix coding Appendix A.

4.1.1.3 commodity item code

Commodity item code consists of 5 to 2 digits, generally prepared by the manufacturer, it may also be responsible for preparing the Article Numbering Center of China.

4.1.1.4 checksum

Check code is a number that is used to examine the entire coding right and wrong. Checksum calculation in Appendix B.

4.1.2 8-bit code structure

4.1.2.1 Composition

8-bit code by a prefix code, commodity item code and check code consists of three parts. The structure shown in Table 2.

Table 28-bit code structure

Prefix commodity item code check code

X8X7X6 X5X4X3X2 X1

4.1.2.2 prefix code

X8 ~ X6 is a prefix code, EAN International has been assigned to the Article Numbering Center of China's prefix code is 690 to 695.

4.1.2.3 commodity item code

X5 ~ X2 is a commodity item code, by four digits, Article Numbering Center of China responsible for the allocation and management.

4.1.2.4 checksum

X1 is a check code is a number that is used to examine the entire coding right and wrong. Checksum calculation in Appendix B.

4.1.3 12 code structure

12 code structure, bar, said bar code symbol selection and quality is determined in Appendix C.

Note. according to customer requirements, retail merchandise exports to North America may be a 12-bit code.

4.2 Principles of preparation of the code

Retail commodity code is a unified whole, it should be applied in the overall commodity circulation process. The preparation of retail commodity code, shall comply with

Under basic principles.

4.2.1 The only principle

4.2.1.1 assigned the same commodity same commodity code, the same basic characteristics as the same commodity items.

4.2.1.2 different commodities should be assigned different product codes, the basic characteristics of different commodities as different commodities.

Note. Under normal circumstances, the basic characteristics of the goods including trade names, trademarks, type, size, quantity, type of packaging and other product characteristics. Enterprises according to the line

Features industry and its own product management demand for the product is assigned a unique product code.

4.2.2 The principle of non-meaning

Retail commodity code commodity item code does not indicate the specific commodity-related information.

4.2.3 stability principle

Retail commodity code Once assigned, if the basic characteristics of the goods does not change, it should remain unchanged.

Preparation 4.3 code

4.3.1 compiled separately packaged single retail commodity code

Individually wrapped single retail means alone, can not be divided individually packaged retail merchandise. Preparation of their commodity codes are often

4.1.1 under the 13 code structure. When the packaging of goods is very small, in line with any one of the following three conditions may apply for the use of

4.1.2 prescribed code structure 8.

--- 13 Code bar code symbols printed product label area of more than a quarter of the largest surface area or the entire printable area

One-eighth of the time;

--- The largest surface area of less than 40cm2 product label or all of the printable area of less than 80cm2 time;

--- The product itself is a cylinder diameter of less than 3cm.

4.3.2 preparation of compositions packaged retail commodity code

4.3.2.1 preparation of standard packs of retail commodity code

Standard packs retail commodity refers to the same standard by a plurality of individual commodity composition of stable combinations of packaged goods. its

Preparation of commodity codes are often 13-bit code structure, but not with the same code is contained within a single package goods.

4.3.2.2 preparation of mixed composition packaged retail commodity code

Mixed composition packaged retail standards set by means of a plurality of different individual commodity composition of stable combinations of packaged goods. its

Preparation Product code usually 13 code structure, but the same code is not contained within the packaging of goods.

Preparation 4.3.3 variable retail commodity code

Code variables for retail store or inside a closed system of consumer goods unit. Their choice commodity codes can be found GB/T 18283.

5.1 yards System

Retail commodity bar code representation of the code using ISO /IEC 15420 defined in the EAN/UPC bar code system. EAN/UPC bar code

A total of EAN-13, EAN-8, UPC-A, UPC-E four structures. UPC-A, UPC-E bar code structure Appendix C. EAN/UPC

Barcode identifier code system in Appendix D.

5.2 EAN/UPC bar code symbol structure

Symbol structure 5.2.1 EAN-13 bar code

EAN-13 bar code has left margin, start character, data character on the left, middle separator, right data character, check character, terminator, right side

And a blank area for people to recognize characters. Figures 1 and 2.

Symbol Chart 1 EAN-13 bar code

Figure 2 EAN-13 bar code symbol schematic constitution

5.2.1.1 the left margin

Located in the far left of the bar code symbol reflectivity of the same region of space, a minimum width of 11 modules wide.

5.2.1.2 start character

Located on the right side of the bar code symbol in the left margin, expressed special symbol information starting from 3 modules.

5.2.1.3 the left data character

At the beginning on the right side, showing six of digital information a bar code characters composed of 42 modules.

5.2.1.4 intermediate separator

The right of the left side of the character data, the bar code is equally special symbol characters, consists of five modules.

5.2.1.5 right data character

Located in the middle of the right side separator represents five-digit bar code information is a set of characters comprises 35 modules.

5.2.1.6 verifier

The right of the right data character of bar code represents a character checksum by seven modules.

5.2.1.7 terminator

Located on the right side of the bar code symbol check character, and represents the end of a special symbol information by three modules.

5.2.1.8 blank area on the right side

Located in the far right of the bar code symbol reflectance of the same region of space, the minimum width of 7 modules wide. To ensure the right of the blank area

Width, you can add " >" symbol in the lower right corner of the bar code symbol " >" symbol is shown in Figure 3 position.

Figure 3 EAN-13 bar code symbol on the right blank area in the " >" position

5.2.1.9 for character recognition

Located below the bar code symbol, the bar code corresponding to the 13-digit number. Preferred for human identification character specified 12508 GB/T 's

OCR-B character set; the top and bottom character barcode characters minimum distance is 0.5 module wide.

Symbol structure 5.2.2 EAN-8 barcodes

EAN-8 bar code has left margin, start character, data character on the left, middle separator, right data character, check character, terminator, right side empty

White areas and for people to recognize characters, Figures 4 and 5.

5.2.2.3 the left data character represents four digital information, consists of 28 modules.

5.2.2.4 right data character represented three digital information by 21 modules.

5.2.2.5 for character recognition and bar code corresponding to the 8-digit number located below the bar code symbol.

5.3 EAN/UPC bar code binary representation

Binary 5.3.1 EAN/UPC bar code denoting the character set

EAN/UPC bar code character set includes a subset of A, B and C subset of a subset. Each bar code character by the two "bars" and two "empty" configuration

to make. Each "bar" or "empty" with 1 to 4 modules, the total number of modules in each bar code character is 7. Binary "1" means "bar" mode

Block, binary "0" indicates "empty" module, see Fig. Barcode character set can represent 0 to 9 of 10 numeric characters. EAN/UPC bar

Binary code denoting the character set in Table 3 and Figure 8.

Figure 7 yards constituting characters

Table 3 EAN/UPC bar code binary representation of the character set

A numeric character subset of a subset of B subset C

00001101 01001111110010

100,110,010,110,011 1.10011 million

200,100,110,011,011 1101100

301,111,010,100,001 1000010

401,000,110,011,101 1011100

501,100,010,111,001 1.00111 million

601,011,110,000,101 1010000

701,110,110,010,001 1000100.

801,101,110,001,001 1001000

900,010,110,010,111 1110100

AA character barcode number subset contains "Article" module is an odd number, called odd arrangement.

bB, the number of characters in the bar code subset C contains "Article" module is even called dual arrangement.

Figure 8 EAN/UPC bar code character set schematic

5.3.2 EAN-13 bar code binary representation

5.3.2.1 start character, terminator

Start character, stop character of the binary representation are "101", shown in Figure 9.

5.3.2.2 intermediate separator

Middle separator binary representation is "01010", shown in Figure 9.

Figure 9 EAN/UPC bar code start character, terminator, middle separator schematic

5.3.2.3 EAN-13 bar code symbol and check character data

13 5.3.2.3.1 first digit code on the left for the preamble. A selection of the left side of the data symbol according to the value of the preamble, B subset, see

Table 4.

Table 4 Left selection rules data symbol EAN/UPC bar code character set

Numerical preamble

EAN-13 bar code on the left data character goods character set

Code position number

5.3.2.3.2 right data character and verifier are represented by C subset.

5.3.2.4 EAN-8 bar code data symbol and check character

A data symbol is represented by the left side of the subset; and the right data character check character is represented by C subset.

6.1 Dimensions

6.1.1 module width (X dimension)

Module is the smallest unit constituting the bar code symbol. When the magnification factor is 1.00, EAN/UPC bar code module width

To 0.330mm.

6.1.2 Barcode empty strip character size

When the magnification factor is 1.00, EAN/UPC bar code character set the size of each part of each character shown in Figure 10.

Barcode characters 1,2,7,8 empty bar width should be appropriately adjusted, the adjustment amount as a module width of 1/13, see Table 6. EAN /

UPC bar code character size tolerances see F. 1.

Millimeters

 expressed 1,2,7,8 barcode empty strip character width dimensions of the appropriate adjustments.

Barcode size of 10 characters

Table 6 yards character 1,2,7,8 bar to adjust the amount of air the unit width in millimeters

Character values

A subset B or subset of a subset of C

Article empty empty bar

6.1.3 Blank width

When the magnification factor is 1.00, the minimum width of the left and right side of the blank area EAN-13 bar code are 3.63mm and 2.31mm,

EAN-8 bar code blank area left and right side are the minimum width of 2.31mm.

6.1.4 start character, an intermediate separator, terminator size

When the magnification factor is 1.00, EAN bar code symbol start, middle separator, terminator dimensions shown in Figure 11.

Millimeters

6.1.5 Recognition characters for size

When the magnification factor is 1.00, for human identification character height of 2.75mm.

6.1.6 EAN-13 barcode symbol size

When the magnification factor is 1.00, EAN-13 bar code symbol size shown in Figure 12.

6.1.7 EAN-8 bar code symbol size

When the magnification factor is 1.00, EAN-8 bar code dimensions shown in Figure 13.

6.1.8 symbol size and magnification factor

EAN/UPC barcode magnification factor of 0.80 to 2.00, the bar code symbol changes with magnification factor and zoom in or out. Due to the high bar

Truncation will affect the reading of the bar code symbol, and therefore should not be arbitrarily truncated bar high. Different amplification factor corresponding to the width of the module, EAN bar code

Table 7 main dimensions (length plus a bar code).

Millimeters

Figure 12 EAN-13 bar code symbol size schematic

Millimeters

Figure 13 EAN-8 bar code symbol size schematic

Table 7 amplification factor module width and EAN bar code symbol table the main dimensions in millimeters

Amplification factor module width

Main dimensions EAN bar code symbol

EAN-13 EAN-8

Barcode

A length

Bar code symbol

Length b

Article high c

Bar code symbol

Height d

Barcode

A length

Bar code symbol

Length b

Article high c

Bar code symbol

Height d

0.80 0.264 25.08 29.83 18.28 20.74 17.69 21.38 14.58 17.05

0.85 0.281 26.65 31.70 19.42 22.04 18.79 22.72 15.50 18.11

0.90 0.297 28.22 33.56 20.57 23.34 19.90 24.06 16.41 19.18

1.00 0.330 31.35 37.29 22.85 25.93 22.11 26.73 18.23 21.31

1.10 0.363 34.49 41.01 25.14 28.52 24.32 29.40 20.05 23.44

1.20 0.396 37.62 44.75 27.42 31.12 26.53 32.08 21.88 25.57

1.30 0.429 40.76 48.48 29.71 33.71 28.74 34.75 23.70 27.70

1.40 0.462 43.89 52.21 31.99 36.30 30.95 37.42 25.52 29.83

1.50 0.495 47.03 55.94 34.28 38.90 33.17 40.10 27.35 31.97

1.60 0.528 50.16 59.66 36.56 41.49 35.38 42.77 29.17 34.10

1.70 0.561 53.30 63.39 38.85 44.08 37.59 45.44 30.99 36.23

1.80 0.594 56.43 67.12 41.13 46.67 39.80 48.11 32.81 38.36

1.90 0.627 59.57 70.85 43.42 49.27 42.01 50.79 34.64 40.49

2.00 0.660 62.70 74.58 45.70 51.86 44.22 53.46 36.46 42.62

a length of the bar code from the bar code symbol start character from the left edge to the right edge of the termination.

b bar code symbol is the minimum length and width of the bar code length of the left and right margin area.

c bar high for the short bars barcode height.

Recognition from the lower end of the upper end of the d character height of the bar code symbol to the supply.

Color 6.2 yards symbol with

Article empty colors shall meet the requirements of 9.2.2.3 and 9.2.2.5. Bar code symbol colors and asked to see the reflectivity F. 2, F. 3.

9.1 yards symbol quality requirements

9.1.1 code structure requirements

Retail commodity bar codes represented shall comply with 4.1.1, 4.1.2 or C. To claim 1 and effective.

The only requirement 9.1.2 Code

Retail barcode represents a unique code should be consistent with the requirements of 4.2.1.2.

9.1.3 ...

END: Draft Version (GB 12904-2008)