Regional emblem of Macao special administrative region
1Key Takeaways
This standard specifies the technical requirements, test methods, inspection rules, signs and packaging of the Regional Emblem of the Macao Special Administrative Region of the People's Republic of China (hereinafter referred to as the Regional Emblem) for hanging. This standard applies to regional emblems made of fibe…
2Expert Interpretation
The GB17655-2008 standard specifies in detail the technical requirements, test methods and inspection rules for the emblem of the Macao Special Administrative Region, covering the production specifications of the regional emblem made of fiber-reinforced plastic and aluminum alloy, including key indicators such as dimensional accuracy, color chromaticity, and paint film performance, to ensure the standardization and regularization of the production of the regional emblem.
Interpretation of the National Standard Technical Specifications for the Emblem of the Macao Special Administrative Region
GB17655-2008, "Macao Special Administrative Region Emblem," is a national mandatory standard and a comprehensive revision of the 1999 edition. It demonstrates the country's high regard for the standardized management of the emblem's symbols. This standard not only regulates the production process of the emblem but also carries the important political significance of safeguarding national sovereignty and territorial integrity.
Background and Major Changes of the Standard Revision
This standard was proposed by the Hong Kong and Macao Affairs Office of the State Council, under the jurisdiction of the National Technical Committee on Color Standardization, and jointly drafted by the Institute of Psychology of the Chinese Academy of Sciences and Shenzhen Haichuan Technology Co., Ltd. Compared to GB17655-1999, the main technical changes are reflected in two aspects: First, Appendices A and B of the original standard have been revised to "Normative References," enhancing the standard's standardization and operability; second, significant revisions have been made to the yellow chromaticity values and color differences of the emblem to ensure more accurate and consistent color representation.
Scope of application and material requirements
This standard clearly defines its scope of application, primarily targeting hanging regional emblems made of fiber-reinforced plastics or aluminum alloys. It also emphasizes that regional emblems made of other materials, such as those produced through printing, should also comply with the relevant requirements of this standard, reflecting the standard's wide applicability and flexibility.
| Material type | Scope of application | Special requirements |
|---|---|---|
| Fiber reinforced plastic | District emblem for main hanging purpose | Bending strength ≥140MPa |
| Aluminum alloy | District emblem for main hanging purpose | Surface hardness ≥30 Babbitt |
| Other materials | Flat printed pattern | Reference to color standard requirements |
Detailed explanation of technical parameters of district emblem
Dimension specification system
The standard stipulates three standard sizes, No. 1, No. 2 and No. 3, which correspond to the emblem diameters of 1000mm, 800mm and 600mm respectively, and gives detailed allowable error ranges. This grading system not only meets the use requirements of different occasions, but also ensures the standardization of production.
| Dimensional parameters | No. 1 standard | No. 2 standard | No. 3 standard | Allowance |
|---|---|---|---|---|
| Emblem diameter | 1000mm | 800mm | 600mm | ±4-6mm |
| Main body thickness | 50mm | 40mm | 30mm | ±2-4mm |
| Outer edge bevel | 5°-8° /td> | 5°-8° | 5°-8° | Fixed range |
| Height of Chinese characters | 70mm | 56mm | 42mm | ±2-3mm |
Technical requirements for color
The standard sets strict chromaticity requirements for the colors of various parts of the regional emblem: The five-star yellow adopts the GB15093 standard, Y10=56.0±2.0, x10=0.39±0.01, y10=0.40±0.01; the emblem green has Y10=9.7±1.0, x10=0.26±0.01, y10=0.39±0.01; the stimulation value Y10 of white parts such as lotus white shall not be lower than 80. All colorimetric data are calculated using the CIE standard illuminant D65 and the CIE1964 standard colorimetric system.
Technical requirements for paint film performance
The paint film performance of the regional emblem is directly related to the durability and appearance quality of the product. The standard sets comprehensive requirements for this:
| Performance indicators | Technical requirements | Test standards |
|---|---|---|
| Gloss (60°) | >90% | GB/T9754 |
| Adhesion | >Grade 2 | GB/T1720 |
| Hardness | >2 Pablo | GB/T6739 |
| Weather resistance | | G B/T1766 | |
| Water Resistance | No blistering or peeling within 24 hours | GB/T1733 |
| Moisture and Heat Resistance | Reach Level 1 after 7 days | GB/T1740 |
| Salt Spray Resistance | Reach Level 1 after 7 days | GB/T1771 |
Material Strength and Durability
The standard sets clear requirements for the material strength of the district emblem: a bending strength of no less than 140 MPa, a surface Barcol hardness of no less than 30, and a drop ball impact test requiring the emblem to be free of cracks and damage. These requirements ensure the long-term stability of the district emblem in outdoor environments.
Inspection rules and quality control
Factory inspection
Each regional emblem must undergo factory inspection before leaving the factory. The inspection covers the shape, pattern and dimensions of each part of the regional emblem, as well as the appearance and color quality assessment of the emblem. Only when all inspection items are qualified can the product be considered qualified. Unqualified products shall not be shipped out.
Type inspection
Type inspection must be carried out when there are changes in the emblem material, emblem paint formula, or production process. Only when all quality requirements specified in Chapter 4 are qualified can the product be considered qualified in type inspection and formal production is allowed.
Test Methods and Instrument Requirements
The standard specifies detailed testing methods: Dimensional measurements shall be made using measuring instruments with an accuracy of at least 0.5%; colorimetry shall be conducted in accordance with GB/T3979, GB/T11186.2-1989, and GB/T11186.3-1989; paint film performance testing shall be conducted in accordance with the corresponding national standards; and strength testing shall include bending strength, hardness, and drop-ball impact testing.
Actual Application Case: In the production of the Macao Special Administrative Region emblem hung on the Government Building, the requirements of this standard were strictly adhered to, using fiber-reinforced plastic materials and precision molds to ensure that the dimensional accuracy of each component was within the allowable error range. Color matching was achieved using a computerized color matching system to ensure that color values fully met the standard requirements. The paint film also underwent rigorous aging testing to ensure long-term stability in Macao's unique marine climate.
Standard Implementation Recommendations
Technical Requirements for Manufacturers
Manufacturers should establish a comprehensive quality management system and be equipped with necessary testing equipment, particularly colorimeters and paint film performance testing equipment. Raw material quality should be strictly controlled during the production process, and a full-process quality control system should be established from raw material storage to finished product shipment.
Notes for Users
When purchasing district emblems, users should verify the manufacturer's qualifications and product inspection certificates, and strictly comply with standard requirements during acceptance inspections. Installation should be carried out according to the product instructions, and regular inspections and maintenance should be performed to ensure the emblem maintains its optimal appearance.
Responsibilities of Regulatory Agencies
Quality supervision departments should strengthen supervision and inspection of district emblem manufacturers, regularly conduct product quality inspections, and handle products that do not meet standard requirements in accordance with the law to uphold the seriousness and authority of national standards.
Technological Development Trends
With the continuous development of new materials and processes, future district emblem production technology will develop towards more environmentally friendly and durable technologies. It is recommended that when revising the standard, consideration be given to introducing new environmentally friendly materials and optimizing production processes while maintaining the traditional solemn beauty. The application of digital measurement technology will also further improve the level of product quality control.