West and its partner Daikyo have introduced a superior quality elastomeric piston the Daikyo D Sigma^® 1mL long piston, substantially raising the standard for product acceptance. The D Sigma piston combines Daikyo best practices with a known formulation (D21-7H), Daikyo Flurotec^® film, RB2 Coating, RSV^® and RUV^® processing with key innovation improvements of automated dimensional measurements, tight Acceptable Quality Levels (AQLs), particulate testing per ISO 8871-3, and enhanced vision inspection to achieve high levels of performance and consistency.