Standards Store

IEC 62083:2025 pdf download,Medical device software – Requirements for the safety of radiotherapy treatment planning systems. IEC 62083:2025 establishes requirements for the design, manufacture, installation, and maintenance of radiotherapy treatment planning systems, covering both type tests and site tests. The standard addresses these systems when they communicate with other medical devices, provided the systems: Are […]

IEC 61874:2025 pdf download,Nuclear instrumentation – Geophysical borehole instrumentation to determine rock density (‘density logging’). IEC 61874:2025 covers the specification and requirements for nuclear borehole logging equipment. It applies to systems comprising: a borehole probe with a collimated gamma-ray source and a detector for measuring scattered radiation; a hoisting and depth measurement system; associated electronics […]

IEC 63541:2025 pdf download,Lithium tantalate and lithium niobate crystals for surface acoustic wave (SAW) device applications – Specifications and measuring methods. IEC 63541:2025 specifies the requirements for lithium tantalate (LT) and lithium niobate (LN) crystals used in surface acoustic wave devices. This standard applies to both as-grown crystals and lumbered crystals.

AS IEC 61850.4:2025 pdf download,Communication networks and systems for power utility automation System and project management. AS IEC 61850.4:2025 is the full and identical adoption of the consolidated version IEC 61850-4:2011+AMD1:2020 CSV. This standard defines the functional requirements for the engineering and project management systems concerning communication among intelligent electronic devices within substations or plants.

ASME B16.34:2025 pdf download,Valves–Flanged, Threaded, and Welding End. ASME B16.34:2025 applies to new construction and covers pressure–temperature ratings, dimensions, tolerances, materials, nondestructive examination requirements, testing, and marking for cast, forged, and fabricated flanged, threaded, clamped, and welding end and wafer or flangeless valves of steel, nickel-base alloys, and other alloys shown in Table 1.

ASME B16.47:2025 pdf download,Large Diameter Steel Flanges NPS 26 Through NPS 60 Metric/Inch Standard. ASME B16.47:2025 specifies the pressure–temperature ratings, materials, dimensions, tolerances, marking, and testing requirements applicable to pipe flanges ranging in size from NPS 26 to NPS 60.

ASME B30.6:2025 pdf download,Derricks Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings. The ASME B30.6:2025 standard covers the safety requirements for various stationary or semi-permanent derricks used in material lifting operations. Specifically, it applies to the construction, installation, operation, inspection, testing, and maintenance of different derrick types, such as guy, stiffleg, basket, […]

ASME B31.8-2025 pdf download,Gas Transmission and Distribution Piping Systems. ASME B31.8-2025 applies to the design, manufacturing, installation, inspection, examination, and testing of pipeline systems used in transporting gases and gas-liquid mixtures. This includes, but is not limited to, fuel gas, sour gas, and gaseous carbon dioxide.