Cleanliness test report information:Short term: test 25 products and meet the requirements of SK2. It is suggested that the supplier first take 5PCS for testing to see whether the relevant particulate matter can meet the required 75% standard. If not, immediate improvement measures should be taken so that no more product is wasted. When the improvement is complete, repeat the previous test. Long-term: for 12 consecutive months, 3 pieces are selected every month, and the results meet the requirements of SK2. After 12 times of qualification, we only need to do it once a year during product audit.