Year1
Enterprise online:
Hongbiao Testing and Certification (Shenzhen) Co., Ltd.
Receiving address: Kengzi People, Pingshan New District, Longgang, Shenzhen Third Floor, No. 3 West Road
. What does the sign/sign mean and what is its function?
. Certificate: Laboratory Accreditation Certificate, issued by the China National Accreditation Service for Conformity Assessment (rr,), is a third-party certification that officially indicates that the testing laboratory has the ability to perform specific testing
. Certificate: China Metrology Certification (,), Metrology certification is the country's legal mandatory assessment of testing institutions, and is the formal recognition given by the government authority to testing institutions for prescribed types of testing
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, rTesting details:
, r What is electromagnetic radiation?
Electromagnetic radiation is the phenomenon of energy propagating through space in the form of electromagnetic waves, and is a form of energy release.
According to the different effects of electromagnetic radiation on biology, it can be divided into ionizing radiation and non-ionizing radiation. The quantum energy level of ionizing radiation is relatively high and can cause serious harm to the body through ionization. The quantum energy level of non-ionizing radiation is relatively low and will not cause ionization of body tissues. Its main biological effect is to cause tissue molecules to tremble and Rotation often consumes its energy in the form of fluorescence and heat, and can also cause certain physiological obstacles to the human body.
In the electromagnetic spectrum, rays with shorter wavelengths than ultraviolet and cosmic rays are ionizing radiation waves. Ultraviolet and electromagnetic waves with longer wavelengths, including visible light waves, infrared rays, radar waves, radio waves and alternating current waves, are non-ionizing radiation waves.
Non-ionizing radiation can be divided into three categories according to its radiation frequency: microwave radiation (3~), radio frequency radiation (.~) and power frequency radiation (or). Our common household appliances, electronic equipment and other devices produce non-ionizing radiation. As long as they are powered on, there will be electromagnetic radiation around them. Electromagnetic radiation poses a threat to human health and can also interfere with the normal operation of electronic equipment.
What we usually call electromagnetic radiation generally refers to non-ionizing radiation
The purpose of electromagnetic radiation protection
The starting point of electromagnetic radiation protection is to reduce the impact of electromagnetic radiation on people's normal life , and more importantly, to reduce its harm to people's health.
While electromagnetic radiation brings huge benefits to human society, it also has potential harms. It is urgent to widely publicize and popularize radiation protection knowledge so that people can correctly understand radiation, its sources and hazards, to continuously improve the public's awareness of environmental protection, and to strengthen self-protection and health care.
To detect shielding effectiveness indicators, the six basic frequency points for shielding effectiveness testing are usually as follows:,,,3. Among them, 3 is close to the working frequency of industrial, scientific, and medical equipment, 3 is close to the working frequency of TV, and 3 is close to the working frequency of mobile phones, microwave ovens, computers, and Bluetooth.
. Business acceptance point: 3rd Floor, No. 3, Renmin West Road, Kengzi, Pingshan New District, Shenzhen City
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