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Test method for the detection of suspended particles in laminar flow enclosures for clean rooms in the pharmaceutical industry

Test method for the detection of suspended particles in laminar flow enclosures for clean rooms in the pharmaceutical industry:

1, laminar flow hood suspended particle detection basis: according to the pharmaceutical industry clean room (area) suspended particle test method

2. Test conditions for suspended particles of laminar flow hood:

3, laminar flow hood suction outlet ≥0.5μm particle concentration should not be less than 35,000 particles /L,

4. The particle concentration test at the air inlet of the laminar flow hood shall be carried out within the time of testing the particle concentration in the operation area of the clean workbench, and shall be measured for 5 times.

5, laminar flow cover detection instrument :CLJ-BII (DC) dust particle counter

6. Laminar flow hood test method:

7, laminar flow cover to close the purification air conditioning, indoor ≥0.5μm particle concentration is greater than 350 00 particles /L, and suction outlet ≥0.5μm particle concentration is not less than 350 00 particles /L;

8. When the particle concentration at the air inlet of the laminar flow cover is stable, the center of the parallel section 250 mm away from the main filter or rectifier grid outlet (the center of the vertical laminar flow clean table 250 mm away from the operating table) is continuously tested for 5 times, and the average value is obtained.

9, laminar flow hood when there is a dream 5μm particles during the test, should be repeated sampling, when it appears more than once, the test value is considered reliable.

10, laminar flow hood acceptable standard: ≥0.5μm particle concentration is less than 3.5 particles /L, not allowed to have ≥5μm particles

11. Record the laminar flow cover test results.

CONTACT US

Contact: manager.zhan

Phone: 15928853231

Tel: 028-87849573

Email: 2541565040@qq.com

Add: Chengdu Gaoxin West District Science and Technology Park

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