ISO 6508-3:2005 specifies a method for the calibration of reference blocks to be used for the indirect verification of Rockwell hardness testing machines (scales A, B, C, D, E, F, G, H, K, N, T), as specified in ISO 6508-2.
                    WITHDRAWN
                    SRPS EN ISO 6508-3:2012
                    95.99
                                        Withdrawal of Standard
                    Feb 28, 2017
                
                WITHDRAWN
                                    SRPS EN ISO 6508-3:2017