Abstract Diamond micropowders with different particle sizes were selected, and the mobile phone panel glass was processed by two kinds of polishing methods: free abrasive and fixed abrasive. The material removal rate and the surface roughness of the polished workpiece were compared. The results show that under the same polishing process parameters, the abrasive grain size has a significant effect on the material removal rate and the polished surface quality in the free abrasive polishing, but not in the fixed abrasive polishing; the diamond-bonded abrasive polishing pad is used. Polishing can obtain a good surface quality with a surface roughness of about 1.5 nm, and a self-trimming function is better achieved during the polishing process. (Diamond and Abrasives Engineering, 2009, Issue 2)
The One Step Multi-Drug Screen Test Dip Card (Urine) Package Insert is a urine-based drug test for multiple drugs of abuse ranging from simple immunoassay tests to complex analytical procedures.
The speed and sensitivity of immunoassays make it the most widely accepted method of urine testing for multiple drugs of abuse.The One Step Multi-Drug Screen Test Dip Card (Urine) is a lateral flow chromatographic immunoassay for the qualitative detection of multiple drugs, drug metabolites and alcohol at the following cut-off concentrations in urine.
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