The completion acceptance of a cleanroom and its associated cleaning plant involves conducting individual machine tests in each section. However, these tests are typically not performed after the self-test of the production load system. The overall completion acceptance serves as a comprehensive verification process that includes confirming the results of single-machine testing, no-load system testing, performance parameter measurements and adjustments for the cleanroom (or area), quality inspections of each section, and functional testing as required.
During the final acceptance phase, it is essential to carefully review all relevant documentation. This generally includes:
1. Records of drawing reviews, design change notices, and as-built drawings;
2. Factory certificates and entry inspection reports for major equipment, materials, and instruments used in each section;
3. Installation and inspection records for individual equipment and systems in each project segment;
4. Records of single-machine test runs for each section;
5. No-load trial operation and commissioning records for each project and system;
6. Various pipeline test and inspection records;
7. Inspection and commissioning records for safety facilities in each section;
8. Quality acceptance records for each divisional project.
The main testing items during the completion acceptance of a cleanroom include:
1. Visual inspection of airflow patterns;
2. Measurement of wind speed and air volume;
3. Leak detection in air filters;
4. Sealing test of the cleanroom (zone);
5. Static pressure difference test between rooms;
6. Air cleanliness level assessment;
7. Self-cleaning time evaluation;
8. Temperature and relative humidity testing;
9. Illuminance measurement;
10. Noise level testing;
11. Additional tests as specified by the client or regulatory requirements.
Once the cleanroom is deemed qualified through the initial acceptance, a function acceptance test is conducted under "static" conditions. Key aspects of this phase include:
1. Verification of air cleanliness levels;
2. Microbiological, chemical contaminant, or surface cleanliness testing if required by the production process;
3. Stability testing of temperature and humidity in the cleanroom;
4. Rechecking of self-cleaning time;
5. Airtightness testing of the cleanroom;
6. Measuring illuminance levels;
7. Confirming noise levels;
8. Verifying airflow patterns and air change rates as needed;
9. Additional tests required based on specific project needs.
After successful completion of the cleanroom acceptance, a detailed acceptance report must be prepared. This report should contain the following key elements:
1. Description of the operational status of all facilities, including production equipment;
2. Information about personnel and their activities within the cleanroom area;
3. Sub-test records along with analysis and comments, including test point locations and coordinates;
4. Valid calibration certificates for all testing instruments;
5. Summary of the acceptance conclusions and recommendations.
This structured approach ensures that the cleanroom meets all technical, safety, and functional requirements before it is officially handed over for use.
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