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electromagnetic shielding plastic introduction electromagnetic shielding plastics technical requirements electromagnetic shielding materials select appropriate electromagnetic shielding plastics nucleic acid samples introduction interpretation composite cable trays drilling fluid filtrate
GB/T 32511-2016 in English

GB/T 32511-2016 in English

VALID

General technical requirements for electromagnetic shielding plastic

  • Issued on:2016-02-24
  • Implemented on:2016-09-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $220.00
$214.00

《GB/T 32511-2016电磁屏蔽塑料通用技术要求》由TC323(全国电磁屏蔽材料标准化技术委员会)归口,主管部门为中国电器工业协会。


Introduction

1. Standard background and technology evolution analysis

As an important type of functional material, electromagnetic shielding plastics are widely used in electronic equipment, communication systems and other fields. With the miniaturization and high frequency development of electronic products, the demand for electromagnetic shielding materials is growing. The formulation of this standard aims to standardize the technical requirements of electromagnetic shielding plastics and ensure their performance stability and reliability in practical applications.


2. Comparison of standard frameworks

Standard dimensions Electromagnetic shielding effectiveness (SE) level Electrical properties (EP) level Mechanical properties (MP) level
Shielding frequency range 30MHz ~ 18GHz Uniform requirements Uniform requirements
Shielding effectiveness (SE) SE - 1 ≥80, SE - 2 ≥60, SE - 3 ≥40, SE - 4 ≥20 - -
Surface Resistivity (EP) - EP - 1 ≤10, EP - 2 ≤10³, EP - 3 ≤10⁶ -

Terminology Explanation and Actual Cases

Shielding Effectiveness (SE): Measures the material's ability to suppress electromagnetic waves in decibels. The higher the SE level, the better the material's shielding performance.

For example, when using electromagnetic shielding plastics in high-frequency communication equipment, SE-2 and above levels must be selected to meet frequency requirements above 1GHz.


3. Implementation Suggestions

  1. Material Selection Guide: Select appropriate electromagnetic shielding plastics according to specific application scenarios, focusing on the matching of SE, EP and MP levels.
  2. Quality Control: During the production process, type tests and factory inspections must be carried out in strict accordance with standards to ensure stable product quality.
  3. Environmental Compliance: Strictly control the content of restricted substances (such as lead, mercury, cadmium, etc.) to comply with the requirements of the RoHS Directive.
  4. Technical Optimization: With the advancement of technology, it is recommended to regularly update the test methods and standard indicators to adapt to emerging application needs.

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