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Bar code in dispatch unit

Basic Information

Standard ID: GB/T 16830-1997

Standard Name:Bar code in dispatch unit

Chinese Name: 储运单元条码

Standard category:National Standard (GB)

state:Abolished

Date of Release1997-05-26

Date of Implementation:1998-03-01

Date of Expiration:2009-01-01

standard classification number

Standard ICS number:Information technology, office machinery and equipment >> 35.040 Character sets and information coding

Standard Classification Number:Comprehensive>>Basic Standards>>A24 Classification Code

associated standards

alternative situation:Replaced by GB/T 16830-2008

Procurement status:≈EAN

Publication information

publishing house:China Standard Press

ISBN:155066.1-14364

Publication date:2004-04-11

other information

Release date:1997-05-26

Review date:2004-10-14

drafter:Zhang Chenghai, Zhao Nan, Luo Qiuke, Guo Weihua

Drafting unit:China Article Numbering Center

Focal point unit:National Logistics Information Management Standardization Technical Committee

Proposing unit:China Article Numbering Center

Publishing department:State Bureau of Technical Supervision

competent authority:National Standardization Administration

Introduction to standards:

This standard specifies the structure, size and technical requirements of the barcode used for storage and transportation documents. This standard applies to the barcode identification of commodity storage and transportation documents. GB/T 16830-1997 Storage and transportation unit barcode GB/T16830-1997 Standard download decompression password: www.bzxz.net
This standard specifies the structure, size and technical requirements of the barcode used for storage and transportation documents. This standard applies to the barcode identification of commodity storage and transportation documents.


Some standard content:

GB/T 16830--1997
This standard is formulated based on the actual situation in my country under the premise of complying with the second part of the EAN specification general rules of the International Article Numbering Association "EAN specification for the coding and identification of storage and transportation units". This standard meets the technical requirements of the EAN specification in terms of technical content, thereby ensuring the consistency of this standard with international specifications; at the same time, it also ensures the feasibility and practicality of this standard in my country. Appendix A of this standard is the appendix of the standard.
This standard is proposed and managed by the China Article Numbering Center. The drafting unit of this standard: China Article Numbering Center. The main drafters of this standard: Zhang Chenghai, Zhao Nan, Luo Qiuke, Guo Weihua. 339
1 Scope
National Standard of the People's Republic of China
Bar code in dispatch unit
Bar code in dispatch unit
GB/T16830--1997
This standard specifies the structure, size and technical requirements of bar codes for storage and transportation units. This standard applies to the barcode identification of commodity storage and transportation units. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB12508-90 Alphanumeric character set for optical recognition Part 2: OCR-B character set Shape and size of printed images GB12904-91 General commodity barcode
GB12905-91 Barcode system general terminology Barcode symbol terminology GB/T15425-94 Trade unit 128 barcode
GB/T16829--1997 Interleaved 25 barcode
3 Definitions
This standard adopts the following definitions.
3.1 Consumer unitconsumerunit
Commodity packaging unit sold directly to end users through retail channels. 3.2 Fixed quantity consumer unit Fixed quantity consumer unit refers to a consumer unit that is priced and sold according to the number of pieces of goods. 3.3 Variable quantity consumer unit Variable quantity consumer unit refers to a consumer unit that is priced according to the basic unit of measurement and sold in random quantities. 3.4 Dispatch unit
A commodity packaging unit composed of consumer units for the convenience of handling, warehousing, ordering, transportation, etc. 3.5 Fixed quantity dispatch unit Fixed quantity dispatch unit A fixed quantity dispatch unit is a dispatch unit composed of fixed quantity consumer units. 3.6 Variable quantity dispatch unit Variable quantity dispatch unit is a dispatch unit composed of variable quantity consumer units. 4 Coding of quantitative dispatch unit
Quantitative dispatch unit is coded with 13 or 14 digits. 4.1 Coding of quantitative dispatch unit that is integrated with quantitative consumer unit When a quantitative dispatch order is also a quantitative consumer unit, it should be coded according to the quantitative consumer unit. The coding of quantitative consumption units is the same as that of general commodities, and the coding method is in accordance with GB12904. 4.2 Coding of quantitative storage and transportation units containing different types of quantitative consumption units Approved by the State Administration of Technical Supervision on May 26, 1997 340
Implementation on March 1, 1998
GB/T 16830--1997
When a quantitative storage and transportation order contains different types of quantitative consumption units, the quantitative storage and transportation unit shall be coded with 13 digits. The coding rules of quantitative consumption units shall be applied to the coding of quantitative storage and transportation units, and each quantitative storage and transportation unit shall be assigned a 13-digit code that is different from the consumer unit code it contains. 4.3 Coding of quantitative storage and transportation units containing the same type of quantitative consumption units 4.3.1 Coding with 13 digits
The coding rules of quantitative consumption units shall be applied to the coding of quantitative storage and transportation units, and each quantitative storage and transportation unit shall be assigned a 13-digit code that is different from the consumer unit code it contains. 4.3.2 Encoding with 14 digits
The code structure of the 14-digit code is as follows: Quantitative storage and transportation unit packaging indicator
Quantitative consumption unit code (excluding check character)XiX.XXX,XX,XXXIIXnXia
4.3.2.1 Quantitative storage and transportation unit packaging indicator character (V) Check character
Quantitative storage and transportation unit packaging indicator character (V) is used to indicate different packaging of quantitative storage and transportation units, and the value range is V=1, 2,, 8. 4.3.2.2 Quantitative consumption unit code
Quantitative consumption unit code refers to the 12-digit code of the quantitative consumption unit contained in the quantitative storage and transportation unit after removing the check character.
4.3.2.3 Check character
The calculation method of the check character (C) is shown in Appendix A. Variable storage and transportation unit code
Variable storage and transportation unit consists of a 14-digit main code and a 6-digit additional code. The code structure is as follows: 5.1 Main code
Main code
Variable storage and transportation unit packaging indicator character "Guangshang identification code and commodity item self-code 1
XiX,X:XXsXX,XgX.X1oX1X12
5.1.1 Variable storage and transportation unit packaging indicator character (LI) Check character
Additional code Additional code
Quantity of goods
QQ2Q:Q,Q:
Variable storage and transportation unit packaging indicator character indicates that there is an additional code after the main code, and the value is LI=9.5.1.2 Guangshang identification code
Check character
The manufacturer identification code is the code that identifies the manufacturer. The manufacturer identification code takes the X,~~Xth digits. When X,XX, is 690 or 691, the manufacturer identification code takes the X,~X,th digits.
Note: Manufacturer The identification code is allocated by the China Article Coding Center. 5.1.3 Commodity Item Code
5.1.3.1 The commodity item code in the variable storage and transportation unit is used to identify the product type that constitutes the storage and transportation unit. 5.1.3.2 The commodity item code takes the Xth to X12th digits. When X,XX, is 690 or 691, the commodity item code takes the XXzth digit. 5.1.4 The calculation method of the check character (C1) of the main code is shown in Appendix A. 5.2 Additional Code
5.2 .1 Additional code (Q, ~Q:) refers to the quantity of goods contained in the variable storage and transportation unit, measured according to the determined basic measurement unit (such as kilograms, meters, etc.).
5.2.2 Check character
For the calculation method of the check character (C2) of the additional code, see Appendix A. 341
6 Barcode identification of storage and transportation unit code
6.1 Barcode identification of quantitative storage and transportation unit code 6.1.1 Barcode identification of 13-digit code
GB/T 168301997
Use the universal commodity barcode (EAN-13 barcode) or the 14-digit interleaved 25 barcode (ITF-14 barcode) to identify the 13-digit code of the quantitative storage and transportation unit. When the quantitative storage and transportation unit is also a quantitative consumption unit, the EAN-13 barcode should be used. 6.1.1.1 EAN-13 barcode identification shall comply with GB12904. 6.1.1.2 When the ITF-14 barcode is used to identify the 13-digit code of the quantitative storage and transportation unit, it is necessary to add the -~ digit \0" before the 13-digit code to turn it into a 14-digit code. The structure and technical requirements of the ITF-14 barcode shall comply with Chapter 7. 6.1.2 Barcode identification of 14-digit code
Use the ITF-14 barcode or EAN-128 barcode to identify the 14-digit code of the quantitative storage and transportation unit. 6.1.2.1 The structure and technical requirements of the ITF-14 barcode shall comply with Chapter 7. 6.1.2.2 EAN-128 barcode identification shall comply with GB/T15425. 6.2 Barcode identification of variable storage and transportation units
6.2.1 The main code of the variable storage and transportation unit shall be identified by ITF-14 barcode, and the additional code shall be identified by ITF6 barcode (6-bit interleaved 25 barcode). 6.2.2 The structure and technical requirements of ITF-14 barcode shall comply with Chapter 7. 6.2.3 The structure and technical requirements of ITF-6 barcode shall comply with Chapter 8. 7ITF-14 barcode
7.1 Structure
7.1.1 The barcode character set and barcode character composition of the ITF-14 barcode are the same as those of the interleaved 25 barcode, in accordance with GB/T16829.7.1.2 The ITF-14 barcode consists of a rectangular protection frame, a blank area on the left, barcode characters, and a blank area on the right, as shown in Figure 1.4.8mm10.9mm
122.428mm
06901234567892
153.828mm
Figure 1 ITF-14 barcode symbol (magnification factor is 1.000)7.2 Technical requirements
7.2.1 Barcode symbol size
7.2.1.1 When the magnification factor is 1.000, the width of the narrow unit is 1.016mm, and the width of the wide unit is 2.540mm. 7.2.1.2 When the magnification factor is 1.000, the bar height is 31.8mm, the length of the barcode symbol is 122.428mm, and the width of the left and right blank areas is 10.9mm.
7.2.1.3 The magnification factor of the barcode symbol is 0.625~~1.200. The sizes of each part under different magnification factors are shown in Table 1.7.2.2 Protection frame size
A protection frame should be set around the barcode symbol. The line width of the protection frame is 4.8mm, and the line width is not affected by the magnification factor. 3 12
Magnification factor
GB/T 16830---1997
Table 1 Dimensions of each part of ITF-14 and ITF-6 barcodes and allowable errors of bar and space widths under no magnification factorSymbol size (including protection frame)
Narrow unit width
Wide unit width! Allowable error of bar and space
7.2.3 Human-readable characters
Human-readable characters should preferably use OCR-B characters. 7.2.4 Allowable error
7.2.4.1 The allowable error of bar and space of barcode symbols is shown in Table 1. White area width
7.2.4.2: The allowable error of the height of barcode symbols is ±0.5mm. 7.2.5 Optical properties
The optical properties of barcode symbols shall comply with GB/T16829. 7.2.6 Allowable error of original film
Allowable error of original film shall comply with GB/T16829. 8 ITF-6 barcode
8.1 Structure
JTF-14
8.1.1 The barcode character set and composition of barcode characters of ITF-6 barcode shall comply with GB/T16829. 88.801
8.1.2 The ITF-6 barcode consists of a rectangular protection frame, a blank area on the left, barcode characters, and a blank area on the right, as shown in Figure 2. 8.2 Technical requirements
8.2.1 Barcode symbol size
8.2.1.1 When the magnification factor is 1.000, the width of the narrow unit is 1.016mm, and the width of the wide unit is 2.540mm10.9mm
uug'te
Figure 2 ITF-6 barcode symbol (magnification factor is 1.000) mm
GB/T16830—1997
8.2.1.2 When the magnification factor is 1.000, the bar height is 31.8mm, the length of the barcode symbol is 57.404mm, and the width of the left and right blank areas is 10.9 mm.
8.2.1.3 The enlargement factor of the barcode symbol is 0.625~1.200. The magnification factor of the ITF-6 barcode symbol is not restricted by the magnification factor of the main barcode symbol ITF-14. The dimensions of each part under different magnification factors are shown in Table 1.8.2.2 Protection frame size
A protection frame should be set around the ITF-6 barcode symbol. When the magnification factor of the ITF-6 barcode symbol is similar to that of the main code barcode (ITF11), it can share the same protection frame with the main code barcode. When sharing the same protection frame with the main code barcode, the minimum distance between the two code symbols is the width of the blank area of ​​the main code barcode symbol. The line width of the protection frame is 4.8mm, and the line width is not affected by the magnification factor. 8.2.3 Human identifiable characters
Human identifiable characters should preferably use OCR-B characters. 8.2.4 Allowable error
8.2.4.1 The allowable error of the bar and space width of the barcode symbol is shown in Table 1.8.2.4.2 The allowable error of the height of the barcode symbol is ±0.5mm. 8.2.5 Optical properties
The optical properties of barcode symbols shall comply with GB/T16829.8.2.6 Allowable error of original film
The allowable error of original film shall comply with GB/T16829.9 Printing position of barcode symbols in storage and transportation units
9.1 The barcode symbols shall be printed on all four vertical surfaces of the outer packaging of the storage and transportation unit as far as possible; they may also be placed on two adjacent vertical surfaces; if only one barcode symbol can be printed, the printing surface shall be selected according to the distribution constraints and requirements to ensure that the barcode symbols are easy to read during storage and distribution.
9.2 The minimum distance between the lower edge of the barcode symbol and the lower edge of the printing surface is 32mm (see Figure 3). 9.3 The minimum distance between the outer edge of the first and last bar of the bar code symbol and the vertical edge of the printed surface is 34mm, and the minimum distance between the outer edge of the protection frame and the vertical edge is 19mm (see Figure 3), 32mm
Figure 3 Storage and transportation unit bar code symbol printing position
A1 Code position number
GB/T 16830—1997
Appendix A
(Standard Appendix)
Calculation method of check character
The code position number refers to the sequence number from right to left including the check character (the code position number of the check character is 1). A2 Calculation steps
Starting from code position number 2, sum all the even-numbered digits. Multiply the sum of step a) by 3.
Starting from code position number 3, sum all the odd-numbered digits. Add the results of steps b) and c).
e) Subtract the unit digit of the value obtained in step d) from 10, and the difference is the check character. When the unit digit obtained in step d) is zero, the check character is 0.
Example 1 Calculation of the check character in code 0690123456789C The calculation steps are as follows (see Table A1):
Table A1 Calculation of check character for 14-digit code
Code position number
Digit code
Even digit
Odd digit
9+7+5+3+1+9+034
34×3102
8+6+4+2+0+6=26
d) 102+26-128
)10-8=2
So the check character is 2.
Example 2 Calculation of the check character in code 04217C The calculation steps are as follows (see Table A2):
Table A2 Calculation of the check character for 6-bit code
Data code
Code position number
Digital code
Even digit
Odd digit
Check code
Check code
7+2+09
9×3-27
c) 1+4=5
27+532
10-2-8
So the check character is 8.
GB/T16830--19972The ITF-6 barcode consists of a rectangular protection frame, a blank area on the left, barcode characters, and a blank area on the right, as shown in Figure 2. 8.2 Technical requirements
8.2.1 Size of the barcode symbol
8.2.1.1 When the magnification factor is 1.000, the width of the narrow unit is 1.016mm, and the width of the wide unit is 2.540mm10.9mm
uug'te
Figure 2ITF-6 barcode symbol (magnification factor is 1.000)mm
GB/T16830—1997
8.2.1.2 When the magnification factor is 1.000, the bar height is 31.8mm, the length of the barcode symbol is 57.404mm, and the width of the left and right blank areas is 10.9 mm.
8.2.1.3 The magnification factor of the barcode symbol is 0.625 to 1.200. The magnification factor of the ITF-6 barcode symbol is not restricted by the magnification factor of the main barcode symbol ITF-14. The dimensions of each part under different magnification factors are shown in Table 1.8.2.2 Protection frame size
A protection frame should be set around the ITF-6 barcode symbol. When the magnification factor of the ITF-6 barcode symbol is comparable to that of the main barcode (ITF11), it can share the same protection frame with the main barcode. When sharing the same protection frame with the main barcode, the minimum distance between the two code symbols is the width of the blank area of ​​the main barcode symbol. The line width of the protection frame is 4.8mm, and the line width is not affected by the magnification factor. 8.2.3 Human identification characters
Human identification characters should preferably use OCR-B characters. 8.2.4 Allowable error
8.2.4.1 The allowable error of the width of the bar and space of the bar code symbol is shown in Table 1. 8.2.4.2 The allowable error of the height of the bar code symbol is ±0.5mm. 8.2.5 Optical properties
The optical properties of the bar code symbol shall comply with GB/T16829. 8.2.6 Allowable error of the original film
The allowable error of the original film shall comply with GB/T16829. 9 Printing position of the bar code symbol of the storage and transportation unit
9.1 The bar code symbol should be printed on all four vertical surfaces of the outer packaging of the storage and transportation unit as much as possible; it can also be placed on two adjacent vertical surfaces; if only one bar code symbol can be printed, the printing surface should be selected according to the distribution constraints and requirements to ensure that the bar code symbol is easy to read during storage and distribution.
9.2 The minimum distance between the lower edge of the bar code symbol and the lower edge of the printing surface is 32mm (see Figure 3). 9.3 The minimum distance between the outer edge of the first and last bar of the bar code symbol and the vertical edge of the printed surface is 34mm, and the minimum distance between the outer edge of the protection frame and the vertical edge is 19mm (see Figure 3), 32mm
Figure 3 Storage and transportation unit bar code symbol printing position
A1 Code position number
GB/T 16830—1997
Appendix A
(Standard Appendix)
Calculation method of check character
The code position number refers to the sequence number from right to left including the check character (the code position number of the check character is 1). A2 Calculation steps
Starting from code position number 2, sum all the even-numbered digits. Multiply the sum of step a) by 3.
Starting from code position number 3, sum all the odd-numbered digits. Add the results of steps b) and c).
e) Subtract the unit digit of the value obtained in step d) from 10, and the difference is the check character. When the unit digit obtained in step d) is zero, the check character is 0.
Example 1 Calculation of the check character in code 0690123456789C The calculation steps are as follows (see Table A1):
Table A1 Calculation of check character for 14-digit code
Code position number
Digit code
Even digit
Odd digit
9+7+5+3+1+9+034
34×3102
8+6+4+2+0+6=26
d) 102+26-128
)10-8=2
So the check character is 2.
Example 2 Calculation of the check character in code 04217C The calculation steps are as follows (see Table A2):
Table A2 Calculation of the check character for 6-bit code
Data code
Code position number
Digital code
Even digit
Odd digit
Check code
Check code
7+2+09
9×3-27
c) 1+4=5
27+532
10-2-8
So the check character is 8.
GB/T16830--19972The ITF-6 barcode consists of a rectangular protection frame, a blank area on the left, barcode characters, and a blank area on the right, as shown in Figure 2. 8.2 Technical requirements
8.2.1 Size of the barcode symbol
8.2.1.1 When the magnification factor is 1.000, the width of the narrow unit is 1.016mm, and the width of the wide unit is 2.540mm10.9mm
uug'te
Figure 2ITF-6 barcode symbol (magnification factor is 1.000)mm
GB/T16830—1997
8.2.1.2 When the magnification factor is 1.000, the bar height is 31.8mm, the length of the barcode symbol is 57.404mm, and the width of the left and right blank areas is 10.9 mm.
8.2.1.3 The magnification factor of the barcode symbol is 0.625 to 1.200. The magnification factor of the ITF-6 barcode symbol is not restricted by the magnification factor of the main barcode symbol ITF-14. The dimensions of each part under different magnification factors are shown in Table 1.8.2.2 Protection frame size
A protection frame should be set around the ITF-6 barcode symbol. When the magnification factor of the ITF-6 barcode symbol is comparable to that of the main barcode (ITF11), it can share the same protection frame with the main barcode. When sharing the same protection frame with the main barcode, the minimum distance between the two code symbols is the width of the blank area of ​​the main barcode symbol. The line width of the protection frame is 4.8mm, and the line width is not affected by the magnification factor. 8.2.3 Human identification characters
Human identification characters should preferably use OCR-B characters. 8.2.4 Allowable error
8.2.4.1 The allowable error of the width of the bar and space of the bar code symbol is shown in Table 1. 8.2.4.2 The allowable error of the height of the bar code symbol is ±0.5mm. 8.2.5 Optical properties
The optical properties of the bar code symbol shall comply with GB/T16829. 8.2.6 Allowable error of the original film
The allowable error of the original film shall comply with GB/T16829. 9 Printing position of the bar code symbol of the storage and transportation unit
9.1 The bar code symbol should be printed on all four vertical surfaces of the outer packaging of the storage and transportation unit as much as possible; it can also be placed on two adjacent vertical surfaces; if only one bar code symbol can be printed, the printing surface should be selected according to the distribution constraints and requirements to ensure that the bar code symbol is easy to read during storage and distribution.
9.2 The minimum distance between the lower edge of the bar code symbol and the lower edge of the printing surface is 32mm (see Figure 3). 9.3 The minimum distance between the outer edge of the first and last bar of the bar code symbol and the vertical edge of the printed surface is 34mm, and the minimum distance between the outer edge of the protection frame and the vertical edge is 19mm (see Figure 3), 32mm
Figure 3 Storage and transportation unit bar code symbol printing position
A1 Code position number
GB/T 16830—1997
Appendix A
(Standard Appendix)
Calculation method of check characterwww.bzxz.net
The code position number refers to the sequence number from right to left including the check character (the code position number of the check character is 1). A2 Calculation steps
Starting from code position number 2, sum all the even-numbered digits. Multiply the sum of step a) by 3.
Starting from code position number 3, sum all the odd-numbered digits. Add the results of steps b) and c).
e) Subtract the unit digit of the value obtained in step d) from 10, and the difference is the check character. When the unit digit obtained in step d) is zero, the check character is 0.
Example 1 Calculation of the check character in code 0690123456789C The calculation steps are as follows (see Table A1):
Table A1 Calculation of check character for 14-digit code
Code position number
Digit code
Even digit
Odd digit
9+7+5+3+1+9+034
34×3102
8+6+4+2+0+6=26
d) 102+26-128
)10-8=2
So the check character is 2.
Example 2 Calculation of the check character in code 04217C The calculation steps are as follows (see Table A2):
Table A2 Calculation of the check character for 6-bit code
Data code
Code position number
Digital code
Even digit
Odd digit
Check code
Check code
7+2+09
9×3-27
c) 1+4=5
27+532
10-2-8
So the check character is 8.
GB/T16830--19973 The minimum distance between the outer edge of the first and last bar of the bar code symbol and the vertical edge of the printed surface is 34mm, and the minimum distance between the outer edge of the protection frame and the vertical edge is 19mm (see Figure 3), 32mm
Figure 3 Storage and transportation unit bar code symbol printing position
A1 Code position number
GB/T 16830—1997
Appendix A
(Standard Appendix)
Calculation method of check character
The code position number refers to the sequence number from right to left including the check character (the code position number of the check character is 1). A2 Calculation steps
Starting from code position number 2, sum all even-numbered digits. Multiply the sum of step a) by 3.
Starting from code position number 3, sum all odd-numbered digits. Add the results of steps b) and c).
e) Subtract the unit digit of the value obtained in step d) from 10, and the difference is the check character. When the unit digit obtained in step d) is zero, the check character is 0.
Example 1 Calculation of the check character in code 0690123456789C The calculation steps are as follows (see Table A1):
Table A1 Calculation of check character for 14-digit code
Code position number
Digit code
Even digit
Odd digit
9+7+5+3+1+9+034
34×3102
8+6+4+2+0+6=26
d) 102+26-128
)10-8=2
So the check character is 2.
Example 2 Calculation of the check character in code 04217C The calculation steps are as follows (see Table A2):
Table A2 Calculation of the check character for 6-bit code
Data code
Code position number
Digital code
Even digit
Odd digit
Check code
Check code
7+2+09
9×3-27
c) 1+4=5
27+532
10-2-8
So the check character is 8.
GB/T16830--19973 The minimum distance between the outer edge of the first and last bar of the bar code symbol and the vertical edge of the printed surface is 34mm, and the minimum distance between the outer edge of the protection frame and the vertical edge is 19mm (see Figure 3), 32mm
Figure 3 Storage and transportation unit bar code symbol printing position
A1 Code position number
GB/T 16830—1997
Appendix A
(Standard Appendix)
Calculation method of check character
The code position number refers to the sequence number from right to left including the check character (the code position number of the check character is 1). A2 Calculation steps
Starting from code position number 2, sum all even-numbered digits. Multiply the sum of step a) by 3.
Starting from code position number 3, sum all odd-numbered digits. Add the results of steps b) and c).
e) Subtract the unit digit of the value obtained in step d) from 10, and the difference is the check character. When the unit digit obtained in step d) is zero, the check character is 0.
Example 1 Calculation of the check character in code 0690123456789C The calculation steps are as follows (see Table A1):
Table A1 Calculation of check character for 14-digit code
Code position number
Digit code
Even digit
Odd digit
9+7+5+3+1+9+034
34×3102
8+6+4+2+0+6=26
d) 102+26-128
)10-8=2
So the check character is 2.
Example 2 Calculation of the check character in code 04217C The calculation steps are as follows (see Table A2):
Table A2 Calculation of the check character for 6-bit code
Data code
Code position number
Digital code
Even digit
Odd digit
Check code
Check code
7+2+09
9×3-27
c) 1+4=5
27+532
10-2-8
So the check character is 8.
GB/T16830--1997
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