Tham khảo tài liệu 'instrumentation symbols and identification part 11', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Developing and promulgating technically sound consensus standards recommended practices and technical reports is one of ISA s primary goals. To achieve this goal the Standards and Practices Department relies on the technical expertise and efforts of volunteer committee members chairmen and reviewers. ISA is an American National Standards Institute ANSI accredited organization. ISA administers United States Technical Advisory Groups USTAGs and provides secretariat support for International Electrotechnical Commission IEC and International Organization for Standardization ISO committees that develop process measurement and control standards. To obtain additional information on the Society s standards program please write ISA Attn Standards Department 67 Alexander Drive . Box 12277 Research Triangle Park NC 27709 ISBN .