2016DIN EN ISO 16859-2:2016-02 Metallic materials - Leeb hardness test - Part 2: Verification and calibration of the testing devices (ISO 16859-2:2015); German version EN ISO 16859-2:2015
2016DIN EN ISO 16859-2:2016 Metallic materials - Leeb hardness test - Part 2: Verification and calibration of the testing devices (ISO 16859-2:2015); German version EN ISO 16859-2:2015
1970DIN EN ISO 16859-2 E:2013-03 Leeb hardness testing of metallic materials Part 2: Validation and calibration of test equipment (draft)