How should testing laboratories take care of fire prevention?

The basic principle of fire prevention is to keep the source of ignition as far away from the solvent as possible. When heating flammable reagents, you must use a water bath, oil bath, sand bath, or an electric heating jacket, and never use an open flame, the specific requirements are as follows.

(1) Fire extinguishing appliances and personal protective equipment should be available in the testing laboratory. Testing laboratory staff should be familiar with the use of these devices.

(2) It is forbidden to use a flame to look for leaks on the gas pipe; soapy water should be used to check for leaks.

(3) Operation and pouring of flammable liquids should be kept away from sources of ignition, and when it is difficult to pull up the stopper of a bottle, do not use fire to heat it or knock it.

(4) Heating of flammable solvents must be carried out slowly in a water bath or on a tightly closed electric hot plate, and direct heating with a flame or electric stove is strictly prohibited.

(5) When lighting gas lamps, you must first close the damper, then strike a match, then turn on the gas, and finally adjust the airflow. When the gas lamp is not in use, the air should be closed first and then the gas. If you do not follow the order, there is a danger of explosion and fire. It is also important to prevent internal combustion of gas lamps.

(6) When using alcohol lamps, the alcohol in the lamp should not be full, should not exceed 2/3 of the capacity, the alcohol in the lamp is less than 1/4 of the capacity, the fire should be extinguished and then add alcohol. Burning lamp flame should be covered with a cap to extinguish, do not use the mouth to blow out, in order to prevent the lamp alcohol ignition. Alcohol lamps should be lit by matches, and should not be lit by positively burning alcohol lamps to prevent them from catching fire.

(7) Explosive drugs, such as perchloric acid and hydrogen peroxide, should be stored at low temperatures and should not be placed together with other flammable materials.

(8) When distilling combustibles, always pay attention to the normal operation of the apparatus and condenser. If it is necessary to replenish the liquid into the distiller, the heating should be stopped and cooled before proceeding.

(9) Waste liquids of flammable liquids shall not be poured into sewers, and special receptacles shall be set up to collect them so as not to cause accidents.