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Toxic Chemical Safety Cabinet
SYSBEL 2021-09-06
SYSBEL is a professional manufacturer and supplier of toxic chemical safety cabinets in Shanghai. It is referred to as a professional hazardous chemical safety cabinet manufacturer for a long time. It has been committed to the production of "FM certified fireproof cabinets" also known as "chemical safety cabinets" and "fireproof cabinets", and is the first domestic fire-resistant cabinet company to obtain FM certification from the United States. The FM certified fire-resistant cabinets produced by SYSBEL are widely used in petrochemical, industrial manufacturing, university laboratories, food industry, automobile manufacturing, new energy and other industries, and are the guarantee for the development of various industries.
After decades of development, the chemical industry has brought tremendous changes to people's lives and related industries, greatly improved the quality of life of modern people, and accelerated the process of social development. However, due to the characteristics of chemicals, the production of chemicals has many dangers. With the continuous increase in the number and types of chemicals, the disasters caused by improper use, storage, transportation and management of chemicals have become more and more serious, so we should attach great importance to them.

Chemicals mainly have the following hazards: (1) Explosive; (2) Flammability; (3) Oxidizing; (4) Toxicity, irritation, anesthesia, sensitization, suffocation, and carcinogenicity; (5) Corrosive; (6) Radioactivity; (7) High-pressure gas danger.

The main classification of hazardous chemicals:

1. Explosives
This category of chemicals refers to those that can undergo a violent chemical reaction under external action (such as heat, pressure, impact, etc.), and instantaneously generate a large amount of gas and heat, causing the surrounding pressure to rise sharply, causing an explosion, and causing damage to the surrounding environment Articles also include articles that have no overall explosion hazard, but have burning, projectile and minor explosion hazards.

2. Compressed gas and liquefied gas
This category of chemicals refers to compressed, liquefied or pressurized dissolved gases, and should meet one of the following two conditions:
a. Compressed or liquefied gas whose critical temperature is lower than 50°C, or whose vapor pressure is greater than 294kPa at 50°C;
b. At 21.1℃, the absolute pressure of the gas is greater than 275kPa, or at 54.4℃, the absolute pressure of the gas is greater than 715kPa compressed gas; or at 37.8℃, the Reid vapor pressure is greater than 275kPa liquefied gas or pressurized to dissolve gas.

3. Flammable liquid
Please refer to GB20581 for the classification, warning labels and warning instructions of flammable liquids.
Flammable liquid refers to a liquid with a flash point not higher than 63°C.

4. Flammable solids, spontaneously combustible items and flammable items when wet
Flammable solids refer to solids that have a low ignition point, are sensitive to heat, impact, and friction, are easily ignited by external fire sources, burn rapidly, and may emit toxic smoke or toxic gas, but do not include items that have been listed as explosives. Spontaneous combustion items refer to items that have a low spontaneous ignition point and are prone to oxidize in the air, emit heat, and burn on their own. Moisture and flammable items refer to items that undergo a violent chemical reaction and emit a large amount of flammable gas and heat when they are exposed to water or damp. Some do not need an open flame, that is, it can burn or explode.

5. Oxidants and organic peroxides
Oxidant refers to a substance that is in a high oxidation state, has strong oxidizing properties, and is easy to decompose and release oxygen and heat. Including inorganic substances containing peroxy groups, which are not necessarily combustible by themselves, but can cause the combustion of combustibles. They can form explosive mixtures with soft powdered combustibles and are more sensitive to heat, vibration or friction.
Organic peroxides refer to organic substances that contain peroxy groups in their molecular composition. They are flammable and explosive, easily decomposed, and are extremely sensitive to heat, vibration or friction.

6. Poison
This category of chemicals means that after entering the body, it accumulates to a certain amount, which can have biochemical or biophysical interactions with body fluids and organ tissues, disrupt or destroy the normal physiological functions of the body, and cause some organs and systems to be temporary or permanent. Sexual pathological changes, even life-threatening items. Oral intake LD50: solid LD50≤500mg/kg; liquid LD50≤2000mg/kg; 24h through skin contact, LD50 ≤1000mg/kg; Dust, smoke and vapor inhalation LD50≤10mg/L Solid or liquid.

7. Radioactive materials
This category of chemicals refers to items with a specific radioactivity greater than 7.4×104Bq/kg.

8. Corrosive products
This category of chemicals refers to solids or liquids that can burn human tissues and cause damage to metal and other objects. Visible necrosis occurs within 4 hours of skin contact, or solid or liquid with a uniform annual corrosion rate of more than 6.25mm/year on the surface of No. 20 steel at a temperature of 55°C.
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