How to use eyewash properly

one. Eye wash definition

Eyewash device: An effective safety protective device that minimizes damage quickly when a toxic and harmful substance (such as a chemical liquid, etc.) is splashed on the body, face, eyes or fire of a worker and causes fire in the worker's clothing. . However, eyewash products are only used in emergencies to temporarily mitigate further damage to the body. Further treatment and treatment need to follow the doctor's instructions. Eyewash devices were widely used in the vast majority of chemical plants, laboratories, hospitals, pharmaceutical factories, food factories, schools, scientific research, media, and so on in developed industrial countries (the United States, the United Kingdom, etc.) as early as the 1980s. Its purpose is to reduce the harm to the body caused by toxic and harmful substances at work. It is widely used in petroleum, chemical, semiconductor industry, pharmaceutical manufacturing and places where dangerous goods are exposed.

Second, the implementation of eyewash standards.

Eyewashers currently have two standards: one is the American Eyewash Standard ANSI Z358.1-2004, and the other is the European eyewash standard DIN-12899. At present, many eyewash manufacturers in China generally adopt the US standard for eyewash.

three. How to choose the right eyewash product?

First of all: According to toxic and hazardous chemicals at the work site, it is determined that: According to the temperature of the local winter, in addition to South China, other regions will experience weather below 0°C in the winter, and there will be stagnant water in the eyewash. Existence will freeze the normal use of the eyewash. To solve the problem of water accumulation in the eyewash, you must use anti-freeze eyewash, electric hot eyewash or electric heated eye wash. 1. The anti-freeze type eye washer can drain the entire water inside the eye washer after the use of the eye washer is finished or when the eye washer is in a standby state. Anti-freeze eyewashers have automatic emptying type and manual emptying type. Under normal circumstances, automatic emptying type is used. For East China, Central China, and Southwest China, the permafrost in the winter is generally 20-30 cm. The water inlet pipe can be insulated to prevent water from freezing in the inlet pipe. You can use the above-ground type to automatically empty the anti-freeze eyewasher. The eye washer can automatically drain the water inside the entire eye washer to prevent it from freezing. For the northeast, north, and northwest regions, the permafrost layer in winter is generally 50-190 cm. The use of above-ground anti-freeze eyewashers is obviously unable to solve the problem of water ingress and freeze protection, and buried-type automatic emptying antifreeze eyewashers must be used. The eye washer places the antifreeze valve in the position below the frozen soil layer, and uses the switch on the ground to control the water intake and drainage of the eyewash device. The eyewash device can automatically drain the accumulated water in the entire eyewash device and the water inlet pipe under the ground, preventing freeze. 2. In regions where it is possible to prevent freezing and raise the water temperature, an electric heat-catching eyewash or an electric-heated eyewash device should be used to electrically heat the eyewasher to heat the water in the eyewash device. The water temperature of the eyewash is increased, but the water temperature of the shower cannot be raised at all. (Note: The flow of eyewash is 12-18 liters/minute; spray is 120-180 liters/minute) The electric heated eyewash device is heated by the electric heating system so that the water in the eyewash device will not freeze and the eyewash can be improved. And spray water temperature. third. Depending on whether there is a water source in the workplace or not, if a fixed water source is not available at the workplace, or if there is a need to change the workplace frequently, a portable eye washer may be used. This type of eyewash can be moved to the desired location on the job site, but this type of small portable eyewash has only an eyewash function and no spray function, and the eyewash flow is much smaller than a fixed eyewash. Only large portable eye washers have the function of spray and eyewash. For working sites with a fixed water source, fixed eyewashers are used, and tap water can be directly connected to the site. The flow of water is large.

There are many types of stationary eye washers that can be selected according to the factory's own needs. 1. Compound eyewash device: There is a spray system with eyewash system installed directly on the ground. Vertical eyewash: No sprinkler system with eyewash system installed directly on the ground 3. Wall-mounted eyewasher: no spray system with eyewash system mounted directly on the wall 4. Desktop eyewasher: no spray system with eyewash system directly Mounted on the work surface 5. Sprinkler: There is a spray system without eyewash system installed directly on the ground 6. Sprinkler: There is no spray system for direct installation on walls, ceilings, etc.