GOST 25165-1982 Connections of SSI instruments and devices with external pneumatic lines. Types, basic parameters and dimensions. Technical requirements
GOST 2789-1973 Surface roughness. Parameters and characteristics
GOST 25165-1982 history
1996GOST 25164-1996 Connections of instruments and devices with external hydraulic and gas lines. Types, basic parameters and dimensions. Technical requirements
1982GOST 25164-1982 Connections of SSI instruments and devices with external hydraulic and gas lines. Types, basic parameters and dimensions. Technical requirements