Alcance
                            ISO 11171:2016 specifies procedures for the following:a)    primary particle-sizing calibration, sensor resolution and counting performance of automatic particle counters (APCs) for liquids capable of analysing bottle samples;b)    secondary particle-sizing calibration using suspensions verified with a primary calibrated APC;c)    establishing acceptable operation and performance limits;d)    verifying particle sensor performance using a truncated test dust;e)    determining coincidence and flow rate limits.