Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions. Powder Technology Incorporated (PTI) is a materials processing company with expertise in the total spectrum of particle modification with specialization in pulverization, size reduction, classification, screening and blending. PTI is the leading manufacturer and distributor of ISO grades of test dust and custom test contaminant distributions.