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Clean room testing procedures

Industrial modular Clean Room time:2022/04/24 17:06:10 click:295

For the design and decoration of food factories, the detection of food factory clean room mainly refers to the determination of the air cleanliness level of food factory clean room or clean area, and the biological clean room should also be carried out for planktonic bacteria and sedimentation bacteria. In the process of engineering construction, the detection mainly includes two stages of project completion acceptance and clean room comprehensive performance evaluation. During the use of the clean room, the clean room or clean area should be monitored and comprehensive performance should be performed regularly to certify that the clean room or clean area of the food factory always meets the requirements.
Clean room testing procedures

First, the detection of clean room in food factory should first specify the occupation of clean room or clean area. The detection state of clean room should be divided into three types of air, static and dynamic according to the provisions of "Clean workshop Design Code" and ISO14 ** 4 standard.

1. Empty state detection. Tests conducted in the absence of production equipment, materials and production personnel are called air tests.

2. Static detection. The facility has been completed and the production equipment has been installed and operated in accordance with the agreed manner between the user and the supplier, but tests conducted without the presence of production personnel are known as static tests.

3. Dynamic detection. The facility shall operate in a defined manner in the presence of a specified number of personnel and shall be referred to as dynamic if it is carried out in a mutually agreed manner.

Ii. Clean room testing in food factories can be divided into clean room engineering completion acceptance, comprehensive performance evaluation testing and operation, and regular comprehensive performance testing. The monitoring of clean room or clean area in operation and the regular comprehensive performance certification test have not attracted the attention of relevant parties. Revised the clean room design specification provided in the appendix of the "food factory clean room or clean area performance testing and certification", its purpose is to clean room (area) monitoring, comprehensive performance test, and regularly to prove clean room (area) of the clean room (area) is always meet the design requirements, ensure the plant production environment to meet product quality requirements, Achieve stable product quality and output, create better economic benefits.

Three, the construction unit is the most concerned about the running state of the food factory clean room air cleanliness grade, that is, the test results of the production equipment operation and the working state of the operator in the presence of the operator, that is, the dynamic test results. However, the operator usually expects the test results in the empty state as the final acceptance of the project.

The inspection and adjustment of completion acceptance shall be carried out under empty and static conditions as stipulated in "China Clean Room Construction Acceptance Code". The testing status of the comprehensive evaluation shall be determined by the construction unit, the design unit and the construction unit. The main reason is that the dynamic test of the clean room is generally beyond the control scope of the clean room construction unit, and the requirement of taking the vacant state or static state as the test state can evaluate the project quality more timely and objectively.

There are also clear provisions in the construction and acceptance specifications of clean rooms in food factories. The construction unit is responsible for the completion acceptance and comprehensive evaluation of the comprehensive performance of the project. The design and construction unit should cooperate with each other. The first stage mainly checks the construction quality. In the later stage, not only the construction quality reaches the design requirements, but also the comprehensive performance.