BS EN ISO 25178-73:2019

What is ISO 25178‑73 on Vocabulary for surface defects on material measures about? 

ISO 25178‑73 is part 73rd of a multi-standard that covers terms and definitions for surface defects on material measures which enables you to effectively communicate problems associated with surface defects and enhance the smoothness of products.  

ISO 25178‑73 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. 

ISO 25178‑73 is applicable as follows: 

• 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 
• 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 
• 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 
• To educate users of material measures about the different significance and importance of different kinds of defect 
• 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 

Who is ISO 25178‑73 on Vocabulary for surface defects on material measures for? 

ISO 25178‑73 on vocabulary for surface defects on material measures is applicable to: 

• Quality assessment services 
• Product designers 
• Manufacturers of surface measuring equipment 
• Dealers and importers of surface measuring equipment 

Why should you use ISO 25178‑73 on Vocabulary for surface defects on material measures? 

A material measure has a real geometrical surface which is a realization of an ideal or nominal surface, which in turn can in most cases be regarded as a simple mathematical concept. In each case there will be an associated precisely known quantity, which is used when the material measure is measured by a surface texture-measuring instrument in one or more operations during the calibration and set-up of that instrument. 

ISO 25178‑73 provides you vocabulary guidance on general terms and definitions, classes of defects, ways of responding to defects which enables you to communicate spatial and geometrical defects. 

Guidance in ISO 25178‑73 allows you to effectively communicate problems related to surface texture and eliminate possibilities for confusion and mismatch of ideas by following the terms and definitions in this guide which are based on international norms.