If you are sizing a relief valve for a critical application, do not rely on a sketchy scanned PDF found on a forum. The standard is a worthy investment for any serious engineering firm. If you are a student or junior engineer, ask your senior mentor for access to the company's licensed copy to ensure you are learning from the correct data tables. Zooskool Stray X Dog [FREE]
ISO 23251 is a robust, mathematically sound standard that saves lives by ensuring pressure vessels do not explode. As a PDF, it serves as a highly efficient reference tool for the modern engineer. Gs Engineering Construction Afes Hot Free Download Site