Decode 10 strange symbols on electronic devices

(Baonghean.vn) - Normally on electronic devices such as smartphones or tablets..., we often encounter some strange symbols on the back. To understand why these symbols play an essential role in technological devices, let's find out their meaning.

RoHS symbol

RoHS or RoHS Compliant symbol - This is a European standard, devices with this label have been certified as not using materials that are hazardous to the environment and human health, such as cadmium, mercury, lead... All devices sold in Europe must meet this standard, but this symbol is not always clearly stated on the product.

Energy Star Label

This is a certification standard that has been in place since 1992, used in developed countries such as the European Union, North America, Japan, Taiwan, Australia and New Zealand. Products with this certification typically consume 20-30% less energy than the standard.

TÜV Rheinland symbol

This is a certification only used in the German market, issued by the German quality standards corporation TÜV Rheinland. Although it is only a German standard, it is highly respected by manufacturers because it is a strict and reliable standard for users.

UL Marking

UL - short for Underwriters Laboratories - is a symbol that indicates that a product has been certified for safety, rigorously tested and analyzed for its level of harm to humans. UL certification is often found on devices sold in the United States, Mexico and Canada. Most technology products sold in North America such as digital cameras, headphones, OLED screens, electric guitars must be tested and certified by UL to ensure they comply with consumer protection regulations as well as international agreements.

CSA Symbol

CSA - a symbol representing a certificate issued by CSA International, a company that tests and certifies the safety of consumer and industrial products. In the United States and Canada, items such as plumbing, HVAC systems, and electronics that carry the CSA symbol meet or exceed established standards.

FCC Symbol

FCC - a very familiar symbol for smartphone users - this is a certificate issued by the Federal Communications Commission of the United States. Meaning: Indicates that your device does not emit radio waves at too high a level - which can be harmful to the human body and cause interference with other electronic devices. In order to be sold on the market (or commercialized), all devices that emit radio waves must meet the requirements of the FCC.

CCC symbol

CCC - China Compulsory Certificate - is a certification that the technology product meets two safety certificates in China issued by CCIB (the company that manages the safety of domestic consumer products) and the CCEE system (indicating that the electronic device is safe enough to be sold in China). Almost all items and goods (except car tires and agricultural tools) imported into China must have this symbol if they want to circulate on the market.

Three Up Arrows Rotating Symbol

The "recyclable" symbol has been used since the early 1970s. The three rotating arrows represent recyclable resources, and its green color represents the environment and nature.

Radiation warning symbol

The radiation warning symbol designed in 1946 uses a chemical image with an atomic core surrounded by three nuclear radiation elements: Alpha, Beta, Gamma.

3-pronged branch symbol

The three-pronged symbol on each USB plug is a representation of Poseidon's trident, representing the power of a device that can connect to any computer.

Pear Flower

(Synthetic)