ISO 22765:2025 pdf download,Nuclear fuel technology — Sintered (U,Pu)O2 pellets — Guidance for ceramographic preparation for microstructure examination. ISO 22765:2025 provides guidance for preparing ceramographic samples of sintered (U,Pu)O2 pellets so that the pellet microstructure can be examined both qualitatively and quantitatively. It focuses on the ceramographic procedure used during fuel fabrication, defining how to […]

ISO 21181:2025 pdf download,Light conveyor belts — Determination of the relaxed elastic modulus. ISO 21181:2025 specifies a test method for determining the relaxed elastic modulus of light conveyor belts. Its purpose is to provide a standardized way to quantify how these belts deform under a defined loading and after the initial stress relaxation, so the

ISO 14903:2025 pdf download,Refrigerating systems and heat pumps — Qualification of tightness of components and joints. ISO 14903:2025 specifies the qualification procedure used to obtain type approval for the tightness (leak tightness) of hermetically sealed and closed components, joints, and parts used in refrigerating systems and heat pumps. It sets out how manufacturers should demonstrate

ISO 20553:2025 pdf download,Radiation protection — Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive material. ISO 20553:2025 specifies the minimum requirements for designing programmes to monitor workers who face a risk of internal contamination by radioactive material. It sets principles for defining compatible monitoring goals and requirements, and it describes

ISO 11909:2025 pdf download,Binders for paints and varnishes — Polyisocyanate resins — General methods of test. ISO 11909:2025 provides general test methods for polyisocyanate resins (and solutions of polyisocyanate resins) that are used as binders in paints, varnishes, and related coating products. The standard’s main goal is to define consistent, standardized laboratory procedures so that