Precautions for safety production in cremation Lab

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Precautions for safe production in the laboratory

I. operation safety

1. Analysts must carefully study the analysis procedures and relevant safety technical procedures, understand the performance of equipment and the causes of possible accidents in operation, and master the methods of preventing and handling accidents

2. Carry out dangerous work, such as on-site sampling of hazardous materials, treatment of inflammables and explosives, incineration of waste liquid, etc., should be accompanied by a second person, who should be in a place where the work site can be clearly seen and observe the whole process of operation

3. When disassembling and assembling the glass tube, rubber tube, rubber plug, etc., wet it with water first, and pad cotton cloth on your hand to prevent the glass tube from breaking and getting hurt

4. When opening the reagent plugs of concentrated hydrochloric acid, concentrated nitric acid and concentrated ammonia, wear protective equipment and carry out it in the fume hood

5. Before opening the bottle stopper of volatile solvent in summer, cool it with cold water first, and the bottle mouth should not face people

6. The container, beaker or conical flask for diluting concentrated sulfuric acid should be placed in the plastic basin. The coating system can only be applied to plastic composite coating, composite and metal substrate concentrated sulfuric acid. Slowly pour it into the water, not the opposite! Cool with water if necessary

7. Before turning on the UV lamp for sterilization, the operator of microbial experiment should confirm that there is no one in the sterile room before turning on the UV lamp for sterilization. The sequence of turning on the UV lamp is as follows: first turn on the UV lamp on the operation console, then immediately leave the buffer room of the sterile room, and then turn on the UV lamp in the sterile room. Enter the buffer sterile room after the ultraviolet lamp sterilization lamp is turned off for half an hour

8. Before using the autoclave for sterilization, the microbiological experiment operator should check whether the water in the autoclave is sufficient (at least 1cm below the edges and corners of the bottom of the autoclave). After confirming that the components of the autoclave are installed correctly, the sterilization can be started. After the sterilization is completed, the power switch, safety valve and vent valve should be closed. After the pressure naturally drops to the zero position of the pressure gauge, the autoclave can be opened for lifelong maintenance; Do not open the steam valve or forcibly open the lid of the sterilization pot

9. When performing CO2 pressure operation of the carbonation line, analysts should choose to shake violently at a distance from people to avoid hurting people

10. Do not use open fire when distilling flammable liquids. The distillation process must not be separated from others, in case the temperature is too high, the Chinese market has great growth potential or the cooling water is suddenly interrupted

11. Each bottle of reagent in the laboratory must be attached with an obvious label consistent with the contents. It is strictly forbidden to fill empty bottles of used original reagents with other reagents without updating labels

12. Don't leave the post during operation. If you have to leave, entrust someone who can take care of it

13. Smoking and eating are forbidden in the laboratory, and food cannot be processed with experimental utensils. Wash your hands with soap before leaving the room

14. Work clothes should be worn at work, long hair should be tied up, and work clothes should not be worn in canteens and other public places. Wear protective equipment when carrying out dangerous work. It is best to wear protective glasses during the experiment

15. Check the water, electricity, gas and windows after daily work, and lock the door after safety registration

II. Electricity safety

1. The power supply voltage of the laboratory should be stable

The residual elongation everywhere is not evenly distributed

2. The power consumption of laboratory lighting and equipment should be separated, and all power supplies should be matched well

3. Precision instruments need voltage stabilizing equipment

4. The power supply of the laboratory should be separated from the power supply of the equipment with large power consumption in the production workshop

5. The power supply of the laboratory should have a ground wire, three-phase five wire system

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