Technical guide to advanced analytical methods for pharmaceuticals, PFAS, microplastics and other emerging contaminants in water 1. Advanced Analytical Techniques in ISO 25318 ISO 25318:2018 extends the water quality analysis framework established by ISO 25317, introducing advanced analytical techniques for…

Non-destructive and destructive testing for friction stir weld quality assurance ISO 25239-5:2020 specifies inspection and testing requirements for friction stir welded joints in aluminium alloys. The standard covers quality classification, non-destructive testing (NDT) methods, destructive testing procedures, and acceptance criteria.…

Nominal definition of the optical hardware interface – Part 1: STEP-based data exchange for optical systems 1. Introduction to ISO 25297-1 and the NODIF Standard ISO 25297-1:2012 specifies the NODIF (NOminal Definition of the optical hardware Interface) standard for the…

Optics and photonics – Reference dictionary – Part 2: Mapping from NODIF to ISO 23584 dictionary entries 1. Introduction to ISO 25297-2: Mapping NODIF to ISO 23584 ISO 25297-2:2011 specifies the mapping tables and rules for transforming NODIF (ISO 25297-1)…

A technical guide to abrasive grain classification, mechanical testing, and engineering design for grinding and finishing applications 1. Classification of Abrasive Grains According to ISO 25300 ISO 25300:2007 establishes a comprehensive classification system for abrasive grains used in bonded abrasive…

Essential terminology for friction stir welding of aluminium alloys ISO 25239-1:2020 defines the vocabulary and terminology used throughout the ISO 25239 series for friction stir welding (FSW) of aluminium alloys. Friction stir welding is a solid-state joining process invented at…

Design requirements and best practices for FSW joint configurations ISO 25239-2:2020 specifies design requirements for friction stir welded joints in aluminium alloys. Proper joint design is critical to achieving defect-free FSW welds with consistent mechanical properties. Unlike conventional fusion welding,…

Requirements for qualifying FSW engineers, technicians, and operators ISO 25239-3:2020 specifies requirements for the qualification of welding personnel performing friction stir welding of aluminium alloys. Unlike traditional fusion welding where operator skill heavily influences weld quality, FSW places greater emphasis…

Developing and qualifying welding procedures for friction stir welding ISO 25239-4:2020 specifies requirements for welding procedure specification (WPS) and qualification for friction stir welding of aluminium alloys. A properly qualified welding procedure is the foundation of consistent, defect-free FSW production.…

Small Craft — Drive-by-Wire Control Systems 1. Introduction to Small Craft Electronic Control Systems ISO 25197:2020, with Amendment 1:2022, specifies the requirements for electrical and electronic control systems used for steering, shift (gear selection), and throttle (engine speed) on small…

Biological Water Quality Assessment — Macroinvertebrates, Algae, and Aquatic Plant Methods Introduction to ISO 25215 ISO 25215:2006 provides guidelines for the determination of water quality through biological analysis methods, specifically focusing on the use of aquatic organisms as bioindicators for…

Adhesives — Fracture Mechanics Testing of Structural Adhesive Joints 1. Introduction to Adhesive Fracture Energy Testing ISO 25217:2009 specifies a method based on linear elastic fracture mechanics (LEFM) for the determination of the fracture resistance of structural adhesive joints under…

Understanding pseudonymization techniques for healthcare data protection ISO 25237:2017 defines principles, methods, and procedures for pseudonymization of health data. As healthcare increasingly relies on digital records, protecting patient privacy while enabling data utility has become a critical challenge. Pseudonymization replaces…

Geometrical Product Specifications — Surface Texture: Areal 1. Introduction to Surface Defects on Material Measures ISO 25178-73:2019 defines terminology and classification for geometrical defects that may appear on the surfaces of material measures and calibration specimens used in surface texture…

Adhesives — Test Method for PSA Solubility 1. Introduction to PSA Solubility Testing ISO 25179:2018 specifies a test method for determining the solubility of water-soluble or alkali-soluble pressure-sensitive adhesives (PSAs) by measuring the loss in mass when the adhesive is…

Areal Surface Texture Characterization — Material Ratio Parameters and Engineering Design Insights Introduction to ISO 25194 ISO 25194:2013 specifies methods for the characterization of surface texture using the concept of areal material ratio parameters. This standard provides a framework for…

Geometrical Product Specifications — Surface Texture: Areal 1. Introduction to Areal Surface Texture Calibration ISO 25178-701:2010 specifies the characteristics of material measures used as measurement standards, the estimation methods of residual errors, and the calibration methods for acceptance and periodical…