If some items are placed in the high and low temperature test chamber for testing, it may cause explosion, fire, poisoning, etc., so carefully check the equipment instruction manual before use to prevent personal injury and financial loss. Items that are prohibited from using high and low temperature test chambers for testing mainly include the following four categories:
First, explosives:
1. Nitrified glycol (ethylene glycol dinitrate), nitroglycerin (glycerol trinitrate), nitrocellulose and other explosive nitrates.
2. Trinitrobenzene, trinitrotoluene, trinitrophenol (picric acid) and other explosive nitro compounds.
3. Peracetic acid, methyl ethyl ketone peroxide, benzoyl peroxide and other organic peroxides.
Second, combustibles:
1. Self-igniting material:
Metal: "lithium", "potassium", "sodium", yellow phosphorus, phosphorus sulfide, red phosphorus.
Celluloids: calcium carbide (calcium carbide), phosphating lime, magnesium powder, aluminum powder, sodium hydrogen sulfite.
2. Oxide properties class:
a. Potassium chlorate, sodium chlorate, ammonium chlorate and other chlorates.
b. Potassium peroxylate, sodium peroxylate, ammonium peroxyacid and other peroxyacid salts.
c. Potassium peroxide, sodium peroxide, barium peroxylate and other inorganic peroxides.
d. Potassium nitrate, sodium nitrate and other nitrates.
e. Potassium hypochlorite and other hypochlorites.
f. Sodium chlorite and other chlorites.
Third, flammable materials:
1. Ether, gasoline, acetaldehyde, propylene oxide, carbon disulfide and other substances with a flash point of less than -30 °C.
2. Ordinary ethane, ethylene oxide, acetone, benzene, methyl ethyl ketone and other substances with a flash point above -30 ° C and less than 0 ° C.
3. Methanol, ethanol, dimethoate, amyl oleate and other substances with a flash point below 0 ° C below 30 ° C.
4. Kerosene, light oil, turpentine, isoamyl alcohol, acid vinegar and other substances with a flash point below 30 ° C below 65 ° C.
4. Flammable gases: hydrogen, acetylene, ethylene, methane, ethane, propane, butane and other gases that may burn at 1 atmosphere at a temperature of 15 °C.
In combination with the above, if the above-mentioned combustibles, combustibles, etc. are placed in a high and low temperature test chamber for high and low temperature tests, the consequences are undoubtedly extremely serious, and the case of the high and low temperature test chamber occurs. Explosion, but the event that caused the destruction of the aircraft. So for the enterprise, it is obviously not worth the loss, so chemical companies and food companies should avoid the above gases during the use of high and low temperature test chambers.
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