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GB/T 21109.1-2007 standard english preview version PDF file download

GB Standard Code GB/T 21109.1-2007
Standard Category China National Standards
GB Standard English Title Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and software requirements
GB Standard Chinese Title 过程工业领域安全仪表系统的功能安全 第1部分:框架、定义、系统、硬件和软件要求
Chinese Version Price $15 USD per 50 pages
English Translation Price About $15  per 1 page; Inquire us for detail price

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