The air enters the clean room from the air-conditioning box through the air duct and the air filter (HEPA) in the clean room, and is returned by the partition wall panels or raised floors on both sides of the clean room. The airflow is in a state of irregular turbulence or eddy current due to non-linear motion. This type is suitable for clean room class 1,000-100,000.
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The airflow in the clean room is an important factor affecting the performance of the clean room. Generally, the airflow speed of the clean room is between 0.25~0.5m/s. This airflow speed belongs to the breeze area and is easily disturbed by the actions of people and machines. . Although increasing the wind speed can suppress the influence of this disturbance and maintain cleanliness, the increase in wind speed will affect the increase in operating costs, so when the required cleanliness level i
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Since the outbreak of the new crown epidemic on December 20, 2019, many enterprises, units, production frames, engineering, factories and other related units have been more or less affected by the epidemic, traffic is blocked, raw materials cannot be purchased, cannot be delivered, and the production is good Products cannot be delivered to customers within the specified time. Various reasons affect everyone.
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Biological safety cabinet is a safety equipment widely used in scientific research, teaching, clinical inspection and production in the fields of microbiology, biomedicine, genetic recombination, animal experiments, biological products, etc. The most basic safety protection equipment.
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Clean room refers to a well sealed space that controls air cleanliness, temperature, humidity, pressure, noise and other parameters as required
The development of clean room is closely related to modern industry and cutting-edge technology. Due to the environmental requirements of precision machinery industry (such as gyroscope and micro bearing processing) and semiconductor industry (such as large-scale integrated circuit production), the development of clean room technology is promoted
The development of clean room is closely related to modern industry and cutting-edge technology. Due to the environmental requirements of precision machinery industry (such as gyroscope and micro bearing processing) and semiconductor industry (such as large-scale integrated circuit production), the development of clean room technology is promoted
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Today, I will tell you about the working principle and technical characteristics of one of our main products, supercritical carbon dioxide extraction equipment
Supercritical extraction devices can be divided into two types. One is research and analysis, which is mainly used for the analysis of small amounts of substances or to provide data for production. The second is preparation production type, which is mainly used in batch or mass production.
Supercritical extraction devices can be divided into two types. One is research and analysis, which is mainly used for the analysis of small amounts of substances or to provide data for production. The second is preparation production type, which is mainly used in batch or mass production.
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Structure
Clean room decoration
Clean room ceiling system , clean room wall system (including doors and windows), clean room floor system (epoxy floor, PVC floor, polyurethane floor, stainless steel floor)
Clean room decoration
Clean room ceiling system , clean room wall system (including doors and windows), clean room floor system (epoxy floor, PVC floor, polyurethane floor, stainless steel floor)
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Cleanroom air conditioner is a kind of air conditioning project. It not only has certain requirements on the temperature, humidity and wind speed of indoor air, but also has higher requirements on the number of dust particles and bacterial concentration in the air.
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1.The installation of prefabricated clean room shall be carried out in the room after the decoration works are completed. The indoor space must be clean and free of dust, and the parts and site must be cleaned and wiped at any time during construction and installation.
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In our daily communication with our customers,some one always do not know what to do and feel very confused,below are some articles we sort out for our customers,so they could understand what to do next and how to confirm the first step with their engineers or local building departments.
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This article will continue to introduce the varieties of excipients commonly used for direct tablet pressing
1. Sodium carboxymethyl starch
Sodium carboxymethyl starch is an excellent disintegrating agent for tablets. It is a white or quasi white powder, odorless, moisture inducing in air and dispersed into a viscous colloidal solution in water; It has good hydrophilicity and water absorption and expansion; It has good fluidity and compressibility, which can improve the formability of the
1. Sodium carboxymethyl starch
Sodium carboxymethyl starch is an excellent disintegrating agent for tablets. It is a white or quasi white powder, odorless, moisture inducing in air and dispersed into a viscous colloidal solution in water; It has good hydrophilicity and water absorption and expansion; It has good fluidity and compressibility, which can improve the formability of the
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The selection of excipients in direct tablet pressing is very important. In addition to the performance of general tablet excipients, the most important requirement for excipients is that the excipients should have good fluidity and compressibility, as well as appropriate bulk density and large drug capacity (that is, adding more drugs without significant adverse effects on their fluidity and compressibility). The types of auxiliary materials commonly used for direct tablet pressing are:
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