The high and low temperature test chamber is a device that performs high temperature and low temperature (alternating) cyclic change tests on products and materials used. It must not be used for the following substances or tests containing these substances:
(1) 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.
(2) Combustibles:
1. Spontaneous combustion:
Metals: "lithium", "potassium", "sodium", yellow phosphorus, phosphorus sulfide, red phosphorus.
Celluloid: calcium carbide (calcium carbide), phosphating lime, magnesium powder, aluminum powder, sodium bisulfite.
2. Oxide properties:
(1) Potassium chlorate, sodium chlorate, ammonium chlorate and other chlorates.
⑵ Potassium peroxyacid, sodium peroxygenate, ammonium peroxyacid and other peroxyacid salts.
(3) Potassium peroxide, sodium peroxide, barium peroxide, and other inorganic peroxides.
â‘· Potassium nitrate, sodium nitrate and other nitrates.
⑸ Potassium hypochlorite and other hypochlorites.
⑹ Sodium chlorite and other chlorites.
(3) Flammables:
(1) Ether, gasoline, acetaldehyde, propylene oxide, carbon disulfide and other substances whose ignition point is less than -30 ℃.
⑵ Common ethane, ethylene oxide, acetone, benzene, methyl ethyl ketone, and other substances whose ignition point is above -30 ℃ and below 0 ℃.
(3) Methanol, ethanol, dimethylbenzyl, amyl acetate, and other substances with a flash point above 0 ° C and below 30 ° C.
⑷ Kerosene, gasoline, turpentine, isoamyl alcohol, sour vinegar and other substances whose ignition point is above 30 ℃ and below 65 ℃.
(4). Flammable gas:
Hydrogen, acetylene, ethylene, methane, ethane, propane, butane, and other gases that may burn at 1 atm when the temperature is 15 ° C.
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ChangQingShu BabyToy
Shantou Chenghai Sweet Baby Toys Firm , https://www.sweetbabytoys.com