m GSO ISO 25178-73:2021 - Standards Store - GCC Standardization Organization

GSO ISO 25178-73:2021

Gulf Standard   Current Edition

Geometrical product specifications (GPS) — Surface texture: Areal — Part 73: Terms and definitions for surface defects on material measures


This document defines classes of geometrical defects that might be present on the surfaces of material measures and calibration specimens conforming to ISO 5436-1 and ISO 25178-70, and defines terms for ways of responding to these defects.

This document is applicable as follows:

a) to help customers and users of material measures for surface metrology specify their nominal features (ideal geometrical properties) when obtaining them from manufacturers and suppliers;

b) to enable users of material measures to formulate their own rules and policies for responding to the occurrence of defects in such a way as to minimize the uncertainty of their own measurements;

NOTE Such policies are required in ISO/IEC 17025:2017,,, 7.3.1 and 7.8.5 c) and d), for example.

c) to enable calibration laboratories and their customers to agree on a common policy on how to treat defects on a material measure that has been sent for calibration;

d) to educate users of material measures about the different significance and importance of different kinds of defect;

e) for other GPS standards which make reference to the issue of selection of measuring locations, or selection of areas to be measured or avoided in measurement.

Adoption without modification
ISO 25178-73:2019
01 July 2021


English 7 Pages
Current Edition Reference Language

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