JB/T 9252-1999 Industrial process measurement and control instrument.Basic types and dimensions of indicating part and general technical requirements for index (English Version)
This standard specifies the basic type and size of the pointer indicating part of industrial automation instruments and the general technical requirements for the pointer. This standard applies to pointers of panel-mounted and locally installed industrial automation instruments.
JB/T 9252-1999 history
1999JB/T 9252-1999 Industrial process measurement and control instrument.Basic types and dimensions of indicating part and general technical requirements for index