Optimal Particle Counting with ASTM D7647

Much more regularly we measure particle contamination of machine fluids with ASTM D7647. We find the method superior to testing undiluted fluids with a laser optical instrument as well as a pore blockage instrument. By incorporating accurate and consistent dilution we can clear up almost every sample for laser optical particle counting to quantify insoluble debris that can be extracted from a fluid with traditional filtration. ASTM D7647 provides superior sample preparation and a significant reduction in interference from water or entrained gas. Our new CINRG autosampler instrument does a wonderful job. Why didn’t we buy this five years ago?