Can a manufacturer state their products are “SIL X certified” rather than “suitable for use in a SIL X system”?
Individual products are only suitable for use in a SIL environment. A SIL level applies to a Safety Instrumented Function / Safety Instrumented System. Product certificates are issued either by the manufacturer (self-certification), or other independent agency to show that the appropriate process is followed, calculations have been performed, and analysis has been completed on the individual products to indicate that they are compatible for use within a system of a given SIL level. Full IEC 61508 certification can apply to a manufacturers processes. Full certification implies that a manufacturers product development process meets the standards set forth in the appropriate parts of sections 2 3 of IEC 61508 (including hardware / system and software). Receiving full certification from an accredited notifying body gives the end user confidence that the manufacturers engineering process has been reviewed and its products electrical content, firmware and logic have been assessed and conform
Related Questions
- If a manufacturer has multiple plants whose products are purchased by the State of Minnesota, must all the locations participate in E-Verify?
- Can a manufacturer state their products are "SIL X certified" rather than "suitable for use in a SIL X system"?
- Can a manufacturer state their products meet all parts of the requirements of IEC 61508 parts 1 to 7?
