JB/T 9251-1999
工业自动化仪表用记录笔
Recording pen for industrial process measurement and control instrument
1999-08-06
GB/T 777-2008
工业自动化仪表用模拟气动信号
Analogue pneumatic signal for industrial-process measurement and control instruments
2008-06-30
GB 30439.10-2014
工业自动化产品安全要求 第10部分: 记录仪表的安全要求
Safety requirements for industrial automation products―Part 10: Safety requirements for recording instrument
2014-07-24