GB/T 13854-2025 Jet-pipe electro-hydraulic servo valve

GB/T 13854-2008 Jet-pipe electro-hydraulic servo valve

GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) GB/T 2423.5-2019 Environmental testing—Part 2:Test methods—Test Ea and guidance:Shock GB/T 2423.16-2022 Environmental testing—Part 2:Test methods—Test J and guidance:Mould growth GB/T 2423.17-2024 Environmental testing—Part 2:Test methods—Test Ka:Salt mist GB/T 2423.48-2018 Environmental testing—Part 2:Test methods—Test Ff:Vibration—Time-history and sine-beat method GB/T 2423.63-2019 Environmental testing—Part 2:Test methods—Test:combined temperature(cold and heat)/low air pressure/vibration(mixed mode) GB/T 2423.65-2024 Environmental testing—Part 2:Test methods—Test:Combined salt mist/temperature/humidity/solar radiation GB/T 3141-1994 Industrial liquid lubricants—ISO viscosity classification GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB/T 14039-2002 Hydraulic fluid power—Fluids—Method for coding the level of contamination by solid particles GB/T 17446-2024 Fluid power systems and components—Vocabulary GB 17799.4-2022 Electromagnetic compatibility (EMC)—Generic standards—Part 4:Emission for industrial environments GB/T 20082-2006 Hydraulic fluid power—Fluid contamination—Determination of particulate contamination by the counting method using an optical microscope