Liquid Particulate Matter

Very small quantities parentals as like as Inj. Erythropoietin 0.5 ml prefilled syringe how mach sample are needed to perform LPC test according to USP requirement?

According USP we have different test procedure for based on fill volume of the container volume i.e USP 788 <25 ml <100ml >100 ml test 1.B A and test 1.B
So if your 0.5 ml sample fill volume container wil come under USP< 25ml Test 1.B test procedure is suitable for your LPC test.