GB/T 15623.2-2003 Hydraulic fluid power-Electrically modulated hydraulic control valves—Part 2:Test methods for three-way directional flow control valves

GB/T 15623.1-2003 Hydraulic fluid power-Electrically modulated hydraulic control valves—Part 1:Test methods for four-way directional flow control valves

GB/T 15623-1995 Hydraulic fluid power-Servovales-Test methods

GB/T 15623.2-2017 Hydraulic fluid power—Electrically modulated hydraulic control valves—Part 2:Test methods for three-port directional flow-control valves

GB/T 786.1-1993 Fluid power systems and components—Graphic symbols and circuit diagrams—Part 1:Graphic symbols GB/T 786.1-2009 Fluid power systems and components—Graphic symbols and circuit diagrams—Part 1:Graphic symbols for conventional use and data-processing applications GB/T 786.1-2021 Fluid power systems and components—Graphical symbols and circuit diagrams—Part 1:Graphical symbols GB/T 3141-1994 Industrial liquid lubricants—ISO viscosity classification GB/T 4728.1-2005 Graphical symbols for electrical diagrams—Part 1:General information GB/T 4728.1-2018 Graphical symbols for electrical diagrams—Part 1:General information GB/T 4728.2-1998 Graphical symbols for diagrams—Part 2 Symbol elements,qualifying symbols and other symbols having general application GB/T 4728.2-2005 Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying symbols and other symbols having general application GB/T 4728.2-2018 Graphical symbols for electrical diagrams—Part 2:Symbol elements,qualifying symbols and other symbols having general application GB/T 4728.3-1998 Graphical symbols for diagrams—Part 3 Conductors and connecting devices GB/T 4728.3-2005 Graphical symbols for electrical diagrams—Part 3:Conductors and connecting devices GB/T 4728.3-2018 Graphical symbols for electrical diagrams—Part 3:Conductors and connecting devices GB/T 4728.4-1999 Graphical symbols for diagrams—Part 4:Basic passive components GB/T 4728.4-2005 Graphical symbols for electrical diagrams—Part 4:Basic passive components GB/T 4728.4-2018 Graphical symbols for electrical diagrams—Part 4:Basic passive components GB/T 4728.5-2000 Graphical symbols for diagrams—Part 5:Semiconductors and electron tubes GB/T 4728.5-2005 Graphical symbols for electrical diagrams—Part 5:Semiconductors and electron tubes GB/T 4728.5-2018 Graphical symbols for electrical diagrams—Part 5:Semiconductors and electron tubes GB/T 4728.6-2000 Graphical symbols for diagrams—Part 6:Production and conversion of electrical energy GB/T 4728.6-2008 Graphical symbols for diagrams—Part 6:Production and conversion of electrical energy GB/T 4728.6-2022 Graphical symbols for electrical diagrams—Part 6:Production and conversion of electrical energy GB/T 4728.7-2000 Graphical symbols for diagrams—Part 7:Switchgear,controlgear and protective devices GB/T 4728.7-2008 Graphical symbols for diagrams—Part 7:Switchgear,controlgear and protective devices GB/T 4728.7-2022 Graphical symbols for electrical diagrams—Part 7:Switchgear,controlgear and protective devices GB/T 4728.8-2000 Graphical symbols for diagrams—Part 8:Measuring instruments,lamps and signalling devices GB/T 4728.8-2008 Graphical symbols for diagrams—Part 8:Measuring instruments,lamps and signaling devices GB/T 4728.8-2022 Graphical symbols for electrical diagrams—Part 8:Measuring instruments,lamps and signalling devices GB/T 4728.9-1999 Graphical symbols for diagrams—Part 9:Telecommunications:Switching and peripheral equipment GB/T 4728.9-2008 Graphical symbols for diagrams—Part 9:Telecommunications:Switching and peripheral equipment GB/T 4728.9-2022 Graphical symbols for electrical diagrams—Part 9:Telecommunications:Switching and peripheral equipment GB/T 4728.10-1999 Graphical symbols for diagrams—Part 10:Telecommunications:Transmission GB/T 4728.10-2008 Graphical symbols for diagrams—Part 10:Telecommunications:Transmission GB/T 4728.10-2022 Graphical symbols for electrical diagrams—Part 10:Telecommunications:Transmission GB/T 4728.11-2000 Graphical symbols for diagrams—Part 11:Architectural and topographical installation plans and diagrams GB/T 4728.11-2008 Graphical symbols for diagrams—Part 11:Architectural and topographical installation plans and diagrams GB/T 4728.11-2022 Graphical symbols for electrical diagrams—Part 11:Architectural and topographical GB/T 4728.12-1996 Graphical symbols for electrical diagrams—Part 12:Binary logic elements GB/T 4728.12-2008 Graphical symbols for diagrams—Part 12:Binary logic elements GB/T 4728.12-2022 Graphical symbols for electrical diagrams—Part 12:Binary logic elements GB/T 4728.13-1996 Graphical symbols for electrical diagrams Part 13:Analogue elements GB/T 4728.13-2008 Graphical symbols for diagrams—Part 13:Analogue elements GB/T 4728.13-2022 Graphical symbols for electrical diagrams—Part 13:Analogue elements GB/T 7631.2-2003 Lubricants,industrial oils and related products(class L)—Classification—Part 2:Family H(Hydraulic systems) GB/T 14039-2002 Hydraulic fluid power—Fluids—Method for coding the level of contamination by solid particles GB/T 17446-1998 Fluid power systems and components—Vocabulary GB/T 17446-2012 Fluid power systems and components—Vocabulary GB/T 17446-2024 Fluid power systems and components—Vocabulary

ISO 10770-2:1998