https://yse.yabesh.ir/std/handle/yse/181 Wed, 27 May 2026 22:13:25 GMT 2026-05-27T22:13:25Z https://yse.yabesh.ir/std/handle/yse/280506 Safety Standard for Pressure Vessels for Human Occupancy: In-Service Guidelines; ASME PVHO-2 ASME - ASME International INTRODUCTION AND SCOPE (a) This Standard provides technical requirements and guidelines for the operation and maintenance of PVHOs and PVHO systems that were designed, constructed, tested, and certified in accordance with ASME PVHO-1, Safety Standard for Pressure Vessels for Human Occupancy. (b) This Standard provides technical criteria for the user to establish the serviceability of a PVHO acrylic window under its specific environmental service conditions. Windows in protected environments as well as those in severe environments are addressed. Judicious use of this Standard will allow the user and/or the jurisdictional authority to determine when a PVHO acrylic window requires replacement. Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/280506 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/280505 Safety Standard for Pressure Vessels for Human Occupancy; ASME PVHO-1 ASME - ASME International Application This Standard applies to all pressure vessels that enclose a human within their pressure boundary while under internal or external pressure exceeding a differential pressure of 2 psi (15 kPa). PVHOs include, but are not limited to, submersibles, diving bells, and personnel transfer capsules, as well as decompression, recompression, hypobaric, and hyperbaric PVHOs. Geometry The scope of this Standard in relation to the geometry is the pressure boundary as defined in the User’s Design Specification and shall include, but not be limited to, the following: (a) shells of revolution (b) openings and their reinforcements (c) nozzles and other connections (d) flat heads (e) quick-actuating closures (f) vessel penetrations (g) attachments and supports (h) access openings (i) viewports (j) pressure relief devices (k) pressure-retaining covers for vessel openings Limitations The pressure boundary of the PVHO shall be as follows: (a) welding end connection for the first circumferential joint for welded connections (b) the first threaded joint for screwed connections (c) the face of the first flange for bolted, flanged connections (d) the first sealing surface for proprietary connections or fittings Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/280505 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/280503 Material Placement Systems Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings; ASME B30.27 ASME - ASME International Volume B30.24 includes provisions that apply to the construction, installation, operation, inspection, testing, and maintenance of container cranes used for lifting purposes, in conjunction with equipment described in other volumes of the B30 Standard. Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/280503 2019-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/280504 Code on Nuclear Air and Gas Treatment; ASME AG-1 ASME - ASME International This Code provides requirements for the performance, design, fabrication, installation, inspection, acceptance testing, and quality assurance of equipment used in air and gas treatment systems in nuclear facilities. PURPOSE The purpose of this Code is to ensure that equipment used in nuclear facilities for air and gas treatment systems is acceptable in all aspects of design and operation Tue, 01 Jan 2019 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/280504 2019-01-01T00:00:00Z