Requirements for temperature and humidity conditions for the decoration of clean workshops in various industries and precautions to prevent the formation of molds after the use of clean workshops

The clean room can have the characteristics of maintaining the performance such as cleanliness, temperature, humidity and pressure that were originally set. The clean pharmaceutical cleanroom is divided into several levels according to the regional environment, degree of purification and other factors, and there are clear requirements for the control of temperature and humidity. With the improvement of air cleanliness requirements, the requirements for temperature and humidity in the production process are also getting higher and higher, and a certain temperature and humidity level must be reached. To prevent the formation of mold in the clean room. Next, sz-pharma will take you to understand the requirements of temperature and humidity for the decoration of clean workshops in various industries, the humidity conditions for mold formation and the matters needing attention in the later stage. 1. Requirements for temperature and humidity in the decoration of clean workshops in various industries According to the standards of clean workshops, different industries have different requirements for temperature and humidity. In the electronics manufacturing industry, chip production workshops and integrated circuit clean rooms are important components of purification workshops. Since electronic products have extremely strict requirements on the quality of indoor air environment in the process of manufacturing and production, the main object is to control particles and floating dust. In the purification workshop standard, it is necessary to eliminate static electricity and make people feel comfortable. Generally speaking, the temperature of the electronic workshop should be controlled at about 22 ℃, and the relative temperature should be controlled between 50-60%. The packaging industry is mainly reflected in two aspects: food packaging and pharmaceutical packaging. According to the clean workshop standards, the temperature and humidity of the space environment, the number of dust particles in the air, and the quality of water quality must be strictly controlled. The air cleanliness of the purification project in the pharmaceutical production and packaging workshop is divided into four levels: 100, 10,000, 100,000, and 300,000. In the standard provisions of the purification workshop, to determine the number of air changes in the clean room, it is necessary to compare the various air volumes and take the larger value. In practice, the number of air changes at the 100 level is 300-400 times/h, the 10,000 level is 25-35 times/h, and the 100,000 level is 15-20 times/h. Photoelectric optical products purification workshop is generally suitable for electronic instrumentation, computer, semiconductor factory, automobile industry, aerospace industry, lithography, microcomputer manufacturing and other industries. Require. Among them, the temperature is generally required to be controlled at 24±2°C, the relative humidity is 55±5%, the relative humidity of the sterile room of grade 100 and grade 10,000: 45%-50% for drugs that are easy to absorb moisture in summer, and 50-55% for solid preparations such as tablets. %, water injection and oral liquid 55%-65%. 2. Matters needing attention in the later stage of the decoration of the clean pharmaceutical cleanroom to prevent the application of mold in the clean workshop, in addition to controlling and purifying dust particles of different particle sizes according to the requirements of cleanliness, colony control is also one of the environmental control points, mainly pharmaceuticals and medical devices. , biological, food industry applications in dust-free workshops or laboratories have strict requirements for colonies. According to foreign literature and empirical research, the formation of mold in clean workshops requires corresponding humidity conditions. Usually, the maximum humidity of the pharmaceutical GMP clean room is controlled below 70% to avoid the formation of mold. Therefore, for the clean room, the GMP is at the monitoring point, the warning line set by the humidity probe is usually 60%, and the action limit is 70 %. There is a risk of mold formation only when the relative humidity is high. The literature states that there is a risk of mold when surface humidity reaches 60%-100% for more than 3 hours a day. If the surface humidity in the clean room reaches 80% for more than 12 hours a day for 5 days, then mold may arrive. Although the clean pharmaceutical cleanroom can control the production environment so that the temperature and humidity meet the production requirements. However, a small reminder that in daily operation, there are still many problems to pay attention to. 1. Pay attention to energy saving in air-conditioning purification Air-conditioning purification is the main energy consumer, and energy-saving measures need to be taken in design and construction. In design, system and zone division, air supply calculation, temperature and relative temperature confirmation, cleanliness level confirmation and quantity of air change, fresh air ratio, duct insulation, duct production bite shape to airflow resistance, flange connections, air conditioning fans and cold water The selection of equipment such as units is related to energy consumption. Therefore, these details of the purification plant should be considered. 2. Adjust the automatic control device At present, some manufacturers use manual mode to control the adjustment of air volume and air pressure, but since the control valve for controlling air volume and air pressure is in the skill cabin, the ceiling is also a soft roof of color steel. The board is basically installed and debugged. After adjustment, most of them are not adjusted and cannot be adjusted. In order to make the normal production and work of the clean room in the clean room, a complete set of automatic control devices should be set up. 3. The air duct must be both economical and efficient. In its concentration or purification air conditioning system,The requirements for air ducts are both economical and easy to use. The requirements of the former are reflected in the aspects of low price, convenient construction, low operation cost and low inner surface smoothness. The latter refers to good density, no air leakage, fire resistance and corrosion resistance. 4. Telephone and fire-fighting pharma machinery are essential. Setting up telephones and intercoms in the clean workshop can reduce the number of people walking in the clean area, reduce the amount of dust, and communicate with the outside world in time when a fire occurs, and can also provide normal work contact. In addition, the clean workshop should also be equipped with a fire alarm system to avoid the easy detection of fire by external fire sources and cause major economic losses.

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