Calibration of measurement equipment to PN10 measures more particles than calibration to PN23. It is therefore logical that compliance with a limit when measured according to PN10 demonstrates compliance with the same limit according to PN23 but this text should be added for legal certainty.
E-mail correspondence with regard to the application of provisions in New Zealand standard NZS5446:2007 for tyre scuffing forces to the approval of drawbars for lateral forces under UN R55.