TB/T 3137-2006Rules for railway product identification code (English PDF)

3.1 Product

the result of a set of interrelated or interacting activities that convert input into output

NOTE. Common product categories include services (such as transport), software (such as computer programs, databases), hardware (such as engine mechanical parts, electronic components), process materials (such as lubricants). The product in this Standard specially refers to hardware and process materials, of which.

1) the hardware is usually a tangible product, the amount of which is counted;

2) the process materials are usually tangible products, the amount of which has a characteristic of continuity.

3.2 Product item

a group irrelevant to manufacturer, divided according to the basic attribute

NOTE. The basic attribute refers to the specifications, geometry, size, material, performance and production process characteristics for which the product can be distinguished from other products.

3.3 Product identification code

a set of numbers used to identify a particular product of manufacturer

3.4 Product item identification code

a set of numbers used to identify a particular product item of manufacturer

3.5 Railway product

an industrial product used on railway that meet the requirements for quality, safety of this product

4 Rules for identification codes of railway product, item

4.1 Principle of uniqueness

4.1.1 The same product of same enterprise shall be assigned with same product identification code. The different product of same enterprise or the same product of different enterprise shall be assigned with different product identification code.

4.1.2 The product of same name and same basic attribute shall be assigned with same product item identification code. For the product of different name or of same name, different basic attribute shall be assigned with different product item identification code.

4.2 Principle of no meaning

In addition to the preset identification, each digit in the identification code does not represent any specific information related to the product and the product item.

Annex A

(normative)

Calculation method for verification code A.1 The verification code is 1 number. The verification code is calculated by a certain mathematical algorithm based on the numerical sequence. The calculation steps are as follows.

step 1. prepare code weights from left to right, with a weight of 1 from the left odd and 3 of an even number;

step 2. multiply by left-to-right numbers and weights, sum all multiplication results;

step 3. after the sum of step 2 is divided by modulo 10, take the remainder;

step 4. If the remainder is 0, the verification code shall be 0; if the remainder is not 0, the result of subtracting the remainder obtained in step 3 from the modulo 10 shall be the verification code.

A.2 Example for calculation of verification code. see Table A.1 for calculation of verification code of code 15254400005X.

Table A.1 -- Calculation for verification code of code 15254400005X

Step Example calculation explanation

1 Number from left to right

2 Multiply by left-to-right numbers and weights; sum all multiplication results 1+15+2+15+4+12+0+0+0+0+5=54 -1

3 Divide -1 by the modulus to take the remainder 54 (and) / 10 (modulus) = 5, the remainder is 4 (2) If the remainder is 0, the verification code shall be 0; if the remainder is not 0, the result of subtracting the remainder obtained in step 3 from the modulo 10 shall be the verification code.

Verification code X = 10 (modulus) - 4 (remainder) = 6 (3)

Table B.2 -- Product information

Product basic information Product name Product main technical indicators Indicator name (including product model) Corresponding value Implementation product technical standard Product additional information Product identification information Accreditation body Identification certificate number Product certification information Certification body Certificate number Certification body Certificate number Product certification information Certification body Certificate number National industrial production permit information Issuing agency Certificate No.

Railway industrial

product license

information

Issuing agency Certificate No.

Model approval

information Accreditation body Certificate No.

Other access

information

Access organization Access certificate Access organization Access certificate Product brief