GB/T 28473.1-2012 Temperature transmitters for use in industrial-process measure and control systems—Part 1:General specification

GB/T 28473.2-2012 Temperature transmitters for use in industrial-process measure and control systems—Part 2:Methods of evaluating the performance

GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 17212-1998 Industrial-process measurement and control—Terms and definitions GB/T 17614.1-2008 Transmitters for use in industrial-process control systems—Part 1:Methods of evaluating the performance GB/T 28473.2-2012 Temperature transmitters for use in industrial-process measure and control systems—Part 2:Methods of evaluating the performance GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i”