This standard specifies the technical requirements for the size and color of the national flag color standard samples made of chemical fiber (excluding artificial fiber fabrics), silk and cotton. This standard is applicable to the production of national flag color standard samples. GB 12983-2004 National flag color standard samples GB12983-2004 standard download decompression password: www.bzxz.net
This standard specifies the technical requirements for the size and color of the national flag color standard samples made of chemical fiber (excluding artificial fiber fabrics), silk and cotton. This standard is applicable to the production of national flag color standard samples.

All technical contents of this standard are mandatory. Foreword
In the revision of this standard, the permissible error of the chromaticity of the standard sample of the national flag color in the original standard has been revised. This standard replaces GB12983-1991 from the date of implementation. This standard is proposed by the National Standardization Administration. This standard is under the jurisdiction of the National Technical Committee on Color Standardization. This standard is drafted by the National Technical Committee on Color Standardization. The main drafters of this standard are: Wang Daheng, Jing Qicheng, Sun Xiuru, Han Buxin, Li Yazhang. The previous versions replaced by this standard are: GB12983-1991. GB12983—2004
1 Scope
Standard sample of national flag color
GB12983--2004
This standard specifies the technical requirements for the size and chromaticity of the standard sample of national flag color made of chemical fiber fabrics (excluding artificial fiber fabrics), silk and cotton cloth.
This standard is applicable to the production of standard sample of national flag color. 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties reaching an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest versions apply to this standard. GB/T3977 Method of color expression
GB/T3979 Uniform color space and color difference formula GB12982 National flag
3 Requirements
3.1 Dimensions
The dimensions of the national flag color standard samples are shown in Table 1. Table 1 Dimensions of national flag color standard samples
Note: The dimensions shown are the main dimensions of the finished product, excluding the folded edges and flagpole covers. 3.2 Chroma
The chroma of the national flag color standard samples is specified in Table 2. Table 2 Chromaticity of national flag color standard sample
Chemical fiber
Fiber fabric
Flagpole cover
Stimulus value YWww.bzxZ.net
Chromaticity coordinates
0, 463
Allowable error
Unit is mm
2.5% positive deviation of ruler
Allowable error
AF ≤2. 0
Stimulus value Y shall not be less than 78
The chromaticity data in Table 2 are calculated based on CIE standard illuminant Ds; and CIF1964 supplementary standard chromaticity system. 3.3
The flag pattern, plate making positioning, flag appearance evaluation and color fastness requirements of national flag color standard sample shall comply with the provisions of GB129823.4
GB 12983-2004
.
4 Test method
4.1 The dimensions of the national flag color standard samples shall be measured with a measuring tool that has passed the inspection and has an accuracy of not less than 0.5%. 4.2 The colorimetric measurement of the national flag color standard samples shall be carried out in accordance with the provisions of GB/T3977. 4.3 The colorimetric measurement results of the national flag color standard samples shall be expressed in accordance with the provisions of GB/T3977, that is, the measured values ​​shall be expressed in terms of stimulus value Y and chromaticity coordinates zloyo.
4.4 The color difference of the colorimetric values ​​of the national flag color standard samples shall be calculated in accordance with the CIELAB color difference formula specified in GB/T3979. 5 Testing rules
5.1 The colorimetric requirements of the national flag color standard samples shall be tested in accordance with the provisions of 4.2, 4.3, and 4.4 of the test method. If the results do not meet the standards, they shall not be used as standard samples and shall not be issued. 5.2 The national flag color standard samples owned by the national flag production factory and the supervision department shall have a useful life of two years. If they exceed two years, they must be sent for inspection. If the colorimetric values ​​do not meet the standards, they shall not be used.
6 Preservation
The national flag color standard samples must be stored in special packaging boxes, sealed, moisture-proof and light-proof. 7 Production, issuance and implementation supervision
The production, issuance and implementation supervision of the national flag color standard samples shall be supervised by the standardization administrative department of the State Council.
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