Before "continuous improvement" was a quality buzzword, it was a reality at AMEX. All of the critical chemical concentrations in our baths are monitored and adjusted weekly, and statistical analysis is used to ensure process control.
  Distribution of sulfuric concentration

ChemControl   We have a fully equipped on-site chemistry lab staffed full-time. We also have full-time, trained QC inspectors responsible for incoming, in-process and final inspection of all customer parts. We maintain records of all periodic testing done in compliance with the specifications for which we offer certificates of conformance.
  Control chart showing dissolved aluminum
triptych logo