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1 Scope This document applies to nuclear power plants with water cooled reactors and, in particular, to the design of components and civil structures against seismic events in order to meet the safet…
1 Scope This International Standard specifies the performance test methods and requirements for elastomeric seals used in road vehicle disc brake cylinders. It is applicable to solid section type sea…
What is ISO 4954 about? ISO 4954 specifies requirements for non-alloy and alloy steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire, or bars. It also cont…
1 Scope This International Standard specifies performance tests for moulded rubber boots used at end closures on drum type wheel brake cylinders. These boots prevent the entrance of dirt and moisture…
What is ISO 4926 about? ISO 4926 is an international standard on road vehicles that discusses methods for quality improvement of hydraulic brake systems. ISO 4926 specifies the composition and charac…
1 Scope This document specifies methods for a benefit and risk assessment for sports, for recreational and sports facilities including equipment. This document also provides guidance and requirements…
Overview ISO 4913:1981 is an international standard published by the International Organization for Standardization (ISO) that specifies a method for determining the length (span length) and uniformi…
What is ISO 4914 - Unique product identifiers for financial services about? ISO 4914 is a standard that covers unique product identifiers for financial services, enabling effective classification and…
Overview ISO 4997:2025 - Cold-reduced carbon steel sheet of structural quality - specifies requirements for cold‑reduced carbon steel sheet intended for structural applications. It covers grades CR22…
Overview ISO 4917-3:2024 - Design of nuclear power plants against seismic events - Part 3: Civil structures specifies requirements for the seismic design and verification of civil structures in nucle…
Overview ISO 4981:2023 specifies requirements for thermoplastic storm water boxes used in non-pressure underground conveyance and storage of non-potable water. The standard covers cuboid-shaped boxes…
What is ISO 4987 about? ISO 4987 is an international standard on steel and iron castings that discusses various tests and examinations to ensure the quality of castings. ISO 4987 specifies a method f…
1 Scope This document specifies test methods by centrifugation of water content of styrene anion exchange resins in hydroxide form.
Overview ISO 4916:1991 - Textiles - Seam types - Classification and terminology provides a standardized system for classifying, illustrating (cross-sections) and designating stitched seams used mainl…
Overview ISO 4917-5:2024 - "Design of nuclear power plants against seismic events - Part 5: Seismic instrumentation" defines how seismic detection and recording systems are used and specified at nucl…
1 Scope This document specifies test methods of the total exchange capacity , the strong-base group capacity and the weak-base group capacity of the styrene anion exchange resins in hydroxide form.
Overview ISO 49:1994 - "Malleable cast iron fittings threaded to ISO 7-1" specifies design, material, dimensional and performance requirements for malleable cast iron threaded pipe fittings used for…
Overview ISO 4921:2000 - "Knitting - Basic concepts - Vocabulary" is an ISO international standard that defines the core terminology used in knitting and knitted fabrics. It provides self-contained d…
Overview ISO 4926:2020 is an international standard that specifies the composition and characteristics of a non-petroleum-based reference fluid used for compatibility testing of hydraulic braking sys…
Overview ISO 4962:2024 is an international standard from ISO focused on nanotechnologies, specifically providing a validated in vitro procedure for assessing acute nanoparticle phototoxicity. The sta…
Overview ISO 4941:1994 specifies a validated analytical procedure - the thiocyanate spectrophotometric method - for the determination of molybdenum (Mo) content in steel and iron. This second edition…
Overview - ISO 4925:2020 (non‑petroleum‑based brake fluids) ISO 4925:2020 specifies performance, material and test requirements for non‑petroleum‑based brake fluids used in road‑vehicle hydraulic bra…
Overview ISO 4900:2011 specifies a laboratory test method for determining the contact mouldability of textile glass mats and fabrics used in composite hand lay-up processes. The standard defines the…
Overview ISO 4907-1:2023 - Plastics - Ion exchange resin - Part 1 specifies standardized laboratory methods for determining the exchange capacity of acrylic anion exchange resins. The standard define…
Overview ISO 4940:2025 specifies a flame atomic absorption spectrometric (FAAS) method for the determination of nickel content in steel and cast iron. The method covers nickel mass fractions from 0.0…
Overview ISO 4917-6:2024 - "Design of nuclear power plants against seismic events - Part 6: Post-seismic measures" provides guidance for actions to be taken before, during and after an earthquake at…
Overview ISO 4967:2026 specifies a standardized micrographic method for determining the non-metallic inclusion content in steel. This international standard is applicable to rolled or forged steel pr…
1 Scope This International Standard specifies methods for determining the change of appearance and stability of a textile floor covering or any damage caused by detachment of layers, opening of joint…
1 Scope This document specifies test methods of the strong-base group capacity , the weak-base group capacity and the weak-acid group capacity of acrylic anion exchange resins.
What is ISO 4986 about? ISO 4986 is an international standard on steel and iron castings that discusses various tests and examinations to ensure the quality of castings. ISO 4986 specifies a method f…
1 Scope This document describes the general procedure for electrochemical measurements in high-temperature molten salts using potentiodynamic polarization measurements and electrochemical impedance s…
What is ISO 4946- Determination of copper- 2,2'-Biquinoline spectrophotometric method about? ISO 4946 is a safety standard on steel and cast iron . ISO 4946 specifies a spectrophotometric method for…
Overview ISO 4941:2024 - Steel and iron - Determination of molybdenum content - Thiocyanate spectrophotometric method - specifies a validated laboratory procedure for measuring molybdenum (Mo) conten…
Overview ISO 492:2023 – Rolling bearings - Radial bearings - Geometrical product specifications (GPS) and tolerance values is a key international standard developed by ISO for defining the dimensiona…
Overview ISO 4987:2020 - Steel and iron castings - Liquid penetrant testing - specifies a penetrant testing method tailored to the steel and iron foundry industry. It complements the general principl…
Overview ISO 4935:1989 - "Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace" specifies a standardized laboratory method to measure…
Overview ISO 4917-4:2024 - Design of nuclear power plants against seismic events - Part 4: Components specifies requirements for demonstrating earthquake safety of components in nuclear power plants…
1 Scope This document specifies requirements for non-alloy and alloy steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It also lists the specif…
1 Scope This part of ISO 4992 specifies the requirements for the ultrasonic examination of steel castings (with ferritic structure) for highly stressed components, and the methods for determining int…
1 Scope In order to perform a dynamic calibration of a uniaxial testing system, it is necessary to measure the forces experienced by the test-piece to known levels of accuracy – this measurement is m…
1 Scope This document specifies requirements for stainless steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It lists specific requirements for…
What is ISO 4947 about ? ISO 4947 is an international standard on steel and cast iron on the d etermination of vanadium content to improve its quality. ISO 4947 specifies a potentiometric titration m…
1 Scope This document outlines methodologies for soil temperature measurement and provides guidance on the selection of a measurement method depending on measurement purposes. It also gives guidance…
1 Scope This document specifies an N-benzoylphenylhydroxylamine (N-BPHA) spectrophotometric method for the determination of vanadium in steels and cast irons. This document is applicable to vanadium…
Overview - ISO 4954-1:2024 (Steels for cold heading and cold extruding) ISO 4954-1:2024 defines technical delivery conditions for non‑alloy and alloy steels intended specifically for cold heading and…
Overview ISO 4991:2024 - Steel castings for pressure purposes is the fourth edition international standard that specifies requirements for steel castings used in pressure-containing parts. It applies…
