GB/T 40055-2021 in English
VALIDFlag of the Communist Youth League of China
- Issued on:2021-04-30
- Implemented on:2021-04-30
- File Format:PDF
- Delivery:Via email within 1~3 business days
$165.00
| Standard No: | GB/T 40055-2021 |
| Document status: | VALID |
| Title in English: | Flag of the Communist Youth League of China |
| Title in Chinese: | 中国共产主义青年团团旗 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2021-04-30 |
| Implemented on: | 2021-04-30 |
| Chinese Classification: | A22-Terms and Symbols |
| Professional Classification: | GB-National Standard |
| Related Keywords: | league flag
league flag pattern flag ≥ grade communist youth league rectangular flag |
| Related Topics: | Chinese standard
China group group flag group Jiangzhong Group Chinese Year of Chromatography Reunion youth measurement Chinese standard China Spectrum Group republic Zhongzi Group China Seed Group Lead a delegation Chinese gene 4 years group ten China 19 years m2 China Lithium Group Zhongyi Group group standard Qingqian countries GBT40055 GB/T 40055-2021 Domestic middleware China Environmental Sanitation Group |
《GB/T 40055-2021中国共产主义青年团团旗》由gqtzy（共青团中央）归口，主管部门为共青团中央。
Introduction
Interpretation of the core content of the standard
GB/T40055-2021 standardizes the technical requirements of the flag of the Communist Youth League of China in the form of a national standard for the first time. The document is applicable to the production of flags made of chemical fiber fabrics and silk materials, and other materials can be used as a reference. The standard includes three core elements: appearance pattern, dimensional tolerance, and color standard.
League flag pattern specifications
The standard clearly stipulates the geometric composition of the league flag:
- A rectangular flag with a length-to-width ratio of 3:2
- A yellow circle and a five-pointed star combination pattern are set in the 1/4 area of the upper left corner
- The flagpole cover is white, with a width of 60-65mm (No. 1 flag)
Dimension tolerance system
| Specifications | Flag width (mm) | Allowable error | Flag height (mm) | Allowable error |
|---|---|---|---|---|
| No. 1 (standard) | 2880 | -15mm | 1920 | -10mm |
| No. 2 | 1920 | -10mm | 1280 | -8mm |
| No. 3 | 960 | -8mm | 640 | -5mm |
Key Technical Requirements
Color Standard System
Color indicators refer to GB12983 and GB/T40056 standard samples:
- Flag red: Chemical fiber fabrics must comply with the special color standard
- Five-pointed star yellow: circumscribed circle radius 2.667A (A is the base unit)
- Color difference requirement: Color difference of different parts of the flag ≥ Grade 3 (GB/T250)
Color fastness index comparison
| Test items | Chemical fiber fabrics | Natural fiber fabrics | ||
|---|---|---|---|---|
| Red part | Yellow part | Red part | Yellow part | |
| Color fastness to light | ≥Grade 4 | ≥Grade 4 | ≥Grade 3 | ≥Grade 3 |
| Colour fastness to soap washing | Grade 3-4 | Grade 3-4 | Grade 3 | Grade 3 |
Quality Inspection Specifications
Key Points for Sampling Scheme Implementation
The standard adopts the secondary sampling scheme and determines the sample size according to the batch size:
- Batch ≤25 pieces: sampling 3 pieces
- Batch 91-150 pieces: sampling 8 pieces
- Batch ＞1200 pieces: sampling 35 pieces
Defective Product Handling Procedure
When an unqualified batch occurs, the following should be executed:
- Remove unqualified products
- Re-batch
- Re-inspect all items
- Tighten inspection (increase sample size by 20%)
Suggestions for standard implementation
Manufacturers should pay special attention to:
- Establish a color traceability system and calibrate colorimetric equipment regularly
- Formulate a production process verification procedure, especially the pattern positioning process
- Improve the warehousing management system to ensure light-proof and moisture-proof storage
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