Standards World

ISO 23523:2021 pdf free download - Test methods for discrete polymer fibre for fibre-reinforced cementitious composites. Polymer fibre in this document means a fibre made with macromolecule substances as raw material such as aramid fibre, polyamide fibre,...

ISO 23517:2021 pdf free download - Plastics一Soil biodegradable materials for mulch films for use in agriculture and horticulture一 Requirements and test methods regarding biodegradation, ecotoxicity and control of constituents. Biodegradable mulch films are used worldwide in agriculture...

ISO 23458:2020 pdf free download - Fine ceramics (advanced ceramics, advanced technical ceramics)一Test method for determining thermal expansion coefficient and residual stress of CVD ceramic coatings. 5.5 Data recording system A system capable of measuring displacements to...

ISO 23420:2021 pdf free download - Microbeam analysis一Analytical electron microscopy一Method for the determination of energy resolution for electron energy loss spectrum analysis. In order to understand the chemical composition, the atomic bonding and the electronic structure, electron...

ISO 23369:2021 pdf free download - Hydraulic fluid power一Multi- pass method of evaluating filtration performance of a filter element under cyclic flow conditions. In hydraulic fluid power systems, one of the functions of the hydraulic fluid is...

ISO 23349:2020 pdf free download - Animal and vegetable fats and oils一 Determination of sterols and stanols in foods and dietary supplements containing added phytosterols. Plant sterols and plant stanols, collectively referred to as phytosterols, are increasingly...

ISO 23345:2021 pdf free download - I ewellery and precious metals一Non destructive precious metal fineness confirmation by ED-XRF. Introduction This document describes a non-destructive method to verify (confirm) the fineness of finished and semifinished jewellery items considered...

ISO 23317:2012 pdf free download - Implants for surgery- In vitro evaluation for apatite-forming ability of implant materials. It has been revealed that materials of various kinds bond to living bone through a layer of apatite. It...

ISO 23306:2020 pdf free download - Specification of liquefied natural gas as a fuel for marine applications. Due to numerous economic and environmental factors, the use of liquefied natural gas (LNG) as fuel for marine applications has...

ISO 23239-1:2021 pdf free download - Road vehicles一Vehicle domain service (VDS)一 Part 1: General information and use case definitions. The connected vehicles are expected to expand and become even more popular in the markets of different countries....