Way overdue, IPC-5704 requires the use of ion chromatography (IC) to identify the amount and type of contamination present in printed boards. The document also sets a limit for each contaminant, providing clear pass/fail criterion. It is good to see an industry standard in line with best practices championed by DfR Solutions. DfR performs IC testing routinely for our customers and can help you assure the cleanliness of your electronics. For more information, contact Seth Binfield.