GB/T 35516-2017 in English
VALIDLight diffusion polycarbonate for LED luminaire
- Issued on:2017-12-29
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 35516-2017LED灯罩用光扩散聚碳酸酯》由TC15（全国塑料标准化技术委员会）归口，TC15SC9（全国塑料标准化技术委员会工程塑料分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
Introduction
GB/T 35516-2017 "Light Diffusing Polycarbonate for LED Lamp Shades" is the first standard in my country specifically for light diffusing polycarbonate materials for LED lamp shades, filling a gap in the industry. The standard is managed by the Engineering Plastics Sub-Technical Committee of the National Plastics Standardization Technical Committee, and the main drafting units include Shanghai Rizhisheng New Technology Co., Ltd. and many other well-known companies.
Comparative Analysis of Technical Requirements
| Item | Unit | Performance Requirements |
|---|---|---|
| Tensile Strength | MPa | ≥58 |
| Tensile Strain at Break | % | ≥80 |
| Notched Impact Strength of Simple Supported Beam (23℃, 4J) | kJ/m² | ≥10 |
Explanation of professional terms and practical application cases
Light diffusion polycarbonate (light diffusion polycarbonate) is a material made of transparent polycarbonate as the base material, with light diffusers and other additives added. It is mainly used in LED lampshades to improve light uniformity and reduce glare.
For example, in practical applications, luminous transmittance homogeneity (luminous transmittance homogeneity) is an important indicator for measuring material quality. It is evaluated by testing the transmittance of any 5 points and calculating the minimum value of its ratio to the average value.
Comparative analysis of standard frameworks
| Dimensions | GB/T 35516—2017 | Comparison of international standards |
|---|---|---|
| Technical indicators | Tensile strength ≥58MPa, haze ≥90% | In line with EU RoHS standards |
| Environmental protection requirements | Comply with SJ/T11365—2006 limits on toxic and hazardous substances | Higher than US UL certification requirements |
Implementation suggestions
Production links
Enterprises should strictly follow the standard requirements for raw material procurement and production process control, especially the material drying conditions (100~120℃, 2~6 hours) and injection molding process parameters.
Testing and Acceptance
It is recommended to conduct regular type inspections (at least once a year) and conduct sampling tests on key indicators such as transmittance and haze before leaving the factory. For unqualified batches, strict re-inspection should be carried out and the reasons should be traced.
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