[Review] Almost all factories in the pharmaceutical clean area are made of color steel plates. The quality of the color steel plate will directly affect the cleanliness of the clean area, smooth and easy to clean, and the color steel plate with good density can naturally bring a good space environment. management. It is well known that clean areas are frequently disinfected to ensure that the area is relatively "sterile". Does the disinfectant directly contact the color steel plate cause corrosion and accelerated aging? In this paper, the extreme challenge test of the color steel plate was carried out by the dry film of Ofim Hydrogen Peroxide, and then the cause and influencing factors of the corrosion were analyzed. Finally, the user can use the Orpheum to make some suggestions to ensure the expected time. There is no corrosion effect on the inner color steel plate. [Keywords] Orpheum, hydrogen peroxide, dry mist sterilization, color steel plate, corrosive color steel plate [Test Overview] Orpheum dry mist sterilization generally uses 130 ppm of sporicide to sterilize the clean area. In order to better witness the effectiveness of this test, this test has adopted a doubling challenge, that is, the concentration and time of the test are several times or hundreds of times higher than usual. This test consists of two parts: 1. On-site challenge experiment of Orpheum dry fog sterilization equipment. The Orpheum dry fog equipment was used to simulate on-site sterilization, and the color steel plate with the clean area structure was placed in the space. After multiple times of sterilization, the change of the color steel plate was observed. 2, Nofos sporicide surface wiping test. In order to prove whether the Norfoss spores have the property of corroding the dense color steel plate, a limit challenge experiment was taken and the direct wiping method was adopted. [Test materials and places] 1. One of the Ophim OXY-25000 dry fog equipment 2, Nuofu easy to verify space sporicide (hydrogen peroxide 5.5% ) 3, the color plate of the purple light provided 4, about 60 cubic meters of space, temperature 22 degrees Celsius, humidity 60% ã€Test Methods】 1. The color steel plate is evenly distributed in a relatively closed space, using 750ppm usage, the exposure contact time is extended by four times, and repeated tests are repeated to record the change of the color steel plate every day. Lasts 5 days. 2. The surface of the intact color steel plate was wiped with 40,000 ppm ( 385 times more) sporicidal agent, soaked for 4 hours for 3 days, and the scratched color steel plate was also wiped. Observe daily changes in color steel plates (including color, gloss, blistering, powder, etc.) ã€test results】 The compact color steel plate did not show corrosion after testing, and there was no abnormality compared with the normal color steel plate. However, the scratched color steel plate has blistering, and the scratched color steel plate treated by Orpheum dry fog is normal. ã€analysis】 The color steel plate itself has anti-corrosion ability, because the outer surface has an organic coating, the dense coating can protect the damage from the outside, the density of the coating is larger, the corrosion resistance is higher, and the quality of the color steel plate is better. The reason why the color steel plate is corroded is that the surface coating structure is damaged or the density is poor, and the liquid infiltration reacts with the internal components of the coating. The particles in the dry fog state do not adhere to the surface of the color steel plate, and even if there are scratches, it is difficult to penetrate into it. Since the dry mist has a small and rebounding effect, it is impossible to contact the internal components of the coating layer, and it is impossible to cause the color steel plate to be caused. corrosion. If the color steel plate in the clean area is damaged, it is only necessary to repair the damage when using the Orpheum dry fog without any bad influence. It also meets the requirements of GMP for smooth, flat and easy cleaning of the plant. [influencing factors] Several factors affecting the color steel plate were summarized from the experiment and a large amount of field experience. 1. The amount of contact with the sporicidal agent per unit area. Since the compactness of the color steel plate is not 100%, there may be tiny holes. The more the amount, the greater the probability of infiltration, and the greater the possibility of corrosion. 2. The concentration of the sporicide. The concentration of the sporicide is related to the magnitude of the corresponding action intensity, which directly affects the risk of corrosion. 3. Environmental humidity. If the environmental humidity changes more rapidly in a short period of time, the possibility of corrosion increases. 4, adhesion ability. The adhesion of dry fog poses a risk of corrosion. The smaller the particles of dry fog, the smaller the adhesion. It will only pass lightly from the surface without wetting the surface, just as the water droplets pass through the lotus leaves without leaving traces. This is not able to cause corrosion of the color steel plate. 5, the length of sterilization time. The length of the sterilization time is related to the probability of random collision, the greater the probability of long time, and the greater the risk. Short-term sterilization is desirable. [Oufim dry fog sterilization principle] Orpheum's unique and special structural design makes it possible to integrate the compression, ventur spray and internal and external spattering of the droplets in the case of only inputting electric energy , so that the special liquid sporicide becomes a dry mist state. The tiny particles are sprayed out, which expands the efficiency of the large dry mist equipment, greatly reduces the space occupation, and solves the problems of heat dissipation and noise reduction. It is a revolutionary dry fog equipment product. These characteristics are extremely applicable to pharmaceutical companies. [Oufim dry mist sterilization system application] Can be used for disinfection of clean space, A/B area sterilization in pharmaceutical production area , C/D area disinfection, sterile room air disinfection, microbiology laboratory space sterilization, food processing production workshop disinfection, medical equipment production workshop space elimination Bacteria, biosafety laboratory space sterilization, etc. where space disinfection is required . It can also be sterilized in small spaces such as sterile delivery chambers, sterile isolators and freeze dryers. [Oufim use advice] Even if the Ophim dry fog sterilization equipment + easy to verify space sporicide is very corrosive to the color steel plate, in order to standardize safe use, the following are recommended: 1. Before use, please check whether the color steel plate of the factory is damaged, scratched or painted. If it is repaired in time or sealed with sterile adhesive tape. 2. Do not let the distance between the nozzle of the equipment and the color steel plate be less than 80 cm, and continue to spray for more than 1 hour. Place the equipment in strict accordance with the discharge location of the program. 3. Do not immerse the color steel plate directly into the sporicide for disinfection. Other steel tools, utensils or containers may be used. 4. If you have to use the Nofos sporicide to wipe the color steel plate, please avoid repeated wiping and dry it with a dry cloth immediately after sterilization. Yellow Pvc Coated Gloves,Waterproof Yellow Gloves,Pvc Coated Knitwrist Gloves,Yellow Pvc Knitwrist Gloves JINAN SHANDE SECURITY TECHNOLOGY CO., LTD , https://www.sdsxlb.com