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Standard adoption status: IDT or IDT indicates equivalent adoption； eqv or MOD denotes equivalent or modified adoption ； neq indicates non-equivalent adoption. two,* * Standard GB/T 786.1-1993 (2001 * ) Hydraulic and pneumatic graphical symbols eqv ISO 1219-1:1991 GB/T 2346-2003 Nominal pressure series of fluid transmission systems and components ISO 2944:2000, MOD GB/T 2347-1980 (1997) Nominal displacement series of hydraulic pumps and motors eqv ISO 3662:1976 GB/T 2348-1993 (2001 * ) Hydraulic and pneumatic systems and components cylinder inner diameter and piston rod outer diameter neq ISO 3320:1987 GB/T 2349-1980 (1997) Hydraulic and pneumatic systems and component cylinder piston stroke series eqv ISO 4393:1978 GB/T 2350-1980 (1997) Hydraulic and pneumatic systems and components piston rod thread type and size series eqv ISO 4395:1978 GB/T 2351-1993 Hard pipe outer diameter and hose inner diameter neq for hydraulic and pneumatic systems ISO 4397:1978 GB/T 2352-2003 Pressure and volume range and characteristic quantities of hydraulically driven isolated accumulators ISO 5596:1999, IDT GB/T 2353.1-1994 Dimension series and markings for mounting flanges and shaft extensions of hydraulic pumps and motors neq ISO 3019-2:1986 Part 1: Two-hole and four-hole flanges and shaft extensions GB/T 2353.2-1993 (2001 * ) Dimensional series and markings of hydraulic pump and motor mounting flanges and shaft extensions (2) neq ISO 3019-3:1988 Polygonal flange (including circular flange) GB/T 2514-1993 Four-port plate hydraulic directional control valve mounting surface eqv ISO 4401:1980 GB/T 2877-1981 Two-way cartridge hydraulic valve installation and connection dimensions GB/T 2878-1993 Hydraulic component threaded connection port type and size neq ISO 6149:1980 GB/T 2879-1986 Hydraulic cylinder piston and piston rod dynamic seal groove type, size and tolerance neq ISO 5597:1987 GB/T 2880-1981 Hydraulic cylinder piston and piston rod narrow section dynamic seal groove dimension series and tolerance GB/T 3452.1-1992 Dimensional series and tolerances of O-shaped rubber sealing rings for hydraulic and pneumatic applications neq ISO 3601-1:1988 GB/T 3452.2-1987 Appearance quality inspection standards for O-shaped rubber sealing rings GB/T 3452.3-1988 Groove dimensions and design calculation criteria for O-shaped rubber sealing rings for hydraulic and pneumatic applications neq ISO/DIS 3601-2 GB/T 3766-2001 General technical conditions for hydraulic systems eqv ISO 4413: 1998 GB/T 6577-1986 Groove type, dimensions and tolerances for seals with backing rings for hydraulic cylinder piston neq ISO 6547:1981 GB/T 6578-1986 Groove type, dimensions and tolerances for dust seals for piston rods of hydraulic cylinders neq ISO 6195:1986 GB/T 7932-2003 General technical conditions for pneumatic systems ISO 4414:1998, IDT GB/T 7934-1987 Technical conditions for two-way cartridge hydraulic valves GB/T 7935-1987 General technical conditions for hydraulic components neq NFPA T 310.3 GB/T 7936-1987 Method for determination of no-load displacement of hydraulic pumps and motors neq ISO/DP 8426 (1988 edition) GB/T 7937-2002 Nominal pressure series of hydraulic and pneumatic pipe joints and related components neq ISO 4399:1995 GB/T 7938-1987 Nominal pressure series of hydraulic cylinders and cylinders neq ISO 3322:1975 GB/T 7939-1987 Hydraulic hose assembly test method neq ISO 6605:1986 GB/T 7940.1-2001 Pneumatic five-port pneumatic directional control valve Part 1: Mounting surface without electrical connector idt ISO 5599-1:1989 GB/T 7940.2-2001 Pneumatic five-port pneumatic directional control valve Part 2: Mounting surface with electrical connector idt ISO 5599-2:1990 GB/T 7940.3-2001 Pneumatic five-port pneumatic directional control valve Part 3 Function Identification Coding System idt ISO 5599-3:1990 GB/T 8098-2003 Mounting surface of flow control valve with compensation for hydraulic transmission ISO 6263: 1997, MOD GB/T 8099-1987 Hydraulic stack valve mounting surface neq ISO 4401-1980 GB/T 8100-1987 Plate connection hydraulic pressure control valve (excluding relief valve), sequence valve, neq ISO/DIS 5781 (1987) Unloading valve, throttle valve and one-way valve mounting surface GB/T 8101-2002 Installation surface of hydraulic relief valve ISO 6264:1998, MOD GB/T 8102-1987 Installation dimensions of single-rod cylinder with cylinder inner diameter 8~25mm neq ISO 6432:1985 GB/T 8104-1987 Flow control valve test method neq ISO/DIS 6403(1988) GB/T 8105-1987 Pressure control valve test method neq ISO/DIS 6403 (1988) GB/T 8106-1987 Directional control valve test method neq ISO/DIS 6403 (1988) GB/T 8107-1987 Hydraulic valve pressure difference-flow characteristic test method neq ISO/DIS 4411 (1986) GB/T 9065.1-1988 Hydraulic hose joint connection dimensions: flared type GB/T 9065.2-1988 Hydraulic hose joint connection dimensions: ferrule type GB/T 9065.3-1988 Hydraulic hose joint connection dimensions: welded or quick-change type GB/T 9094-1988 (1997) Hydraulic cylinder cylinder installation dimensions and installation type code eqv ISO 6099:1985 GB/T 9877.1-1988 Structural Dimensions Series of Rotating Shaft Lip Seal Rings Part 1: Rotating Shaft Lip Seals with Internal Skeleton GB/T 9877.2-1988 Structural Dimensions Series of Rotating Shaft Lip Seals Part 2: Exposed Skeleton Rotating Shaft Lip Seals GB/T 9877.3-1988 Structural Dimensions Series of Rotating Shaft Lip Seals Part 3: Assembled Rotating Shaft Lip Seals GB/T 14034-1993 24° non-expanded hydraulic pipe joint connection dimensions GB/T 14036-1993 Hydraulic cylinder piston rod end with spherical bearing earring installation dimensions neq ISO 6982:1982 GB/T 14038-1993 (2001) Cylinder port thread neq ISO 7180:1986 GB/T 14039-2002 Hydraulic transmission oil solid particle pollution level code ISO 4406:1999, MOD GB/T 14041.1-1993 Hydraulic filter element structural integrity inspection method neq ISO 2942:1974 GB/T 14041.2-1993 Hydraulic filter element material and liquid compatibility inspection method neq ISO 2943:1974 GB/T 14041.3-1993 (2001) Test method for hydraulic filter element rupture resistance neq ISO 2941:1974 GB/T 14041.4-1993 (2001) Test method for rated axial load of hydraulic filter element neq ISO 3723:1976 GB/T 14042-1993 (2001) Hydraulic cylinder piston rod end pin earring installation dimensions neq ISO 6981:1982 GB/T 14043-1993 Hydraulic control valve mounting surface identification code eqv ISO 5783:1981 GB/T 14513-1993 (2001) Determination of flow characteristics of pneumatic components neq ISO/DIS 6358 (1989) GB/T 14514.1-1993 (2001) Test method for pneumatic pipe joints neq JIS 8381-85 GB/T 14514.2-1993 (2001) Test method for pneumatic quick-change joints neq ISO 6150:1988 GB/T 15242.1-1994 (2001) Dimensional series and tolerances of coaxial seals for hydraulic cylinder piston and piston rod dynamic sealing devices GB/T 15242.2-1994 (2001) Dimensional series and tolerances of support rings for hydraulic cylinder piston and piston rod dynamic sealing devices GB/T 15242.3-1994 (2001) Coaxial seals for hydraulic cylinder piston and piston rod dynamic sealing devices neq ISO 7425-1:1988ISO 7425-2:1989 Part mounting groove dimensions and tolerances GB/T 15242.4-1994 (2001) Hydraulic cylinder piston rod dynamic seal device support ring mounting groove dimensions and tolerances GB/T 15622-1995 (2001) Hydraulic cylinder test method neq JIS B 8354-1985 GB/T 15623.1-2003 Hydraulic transmission electrically modulated hydraulic control valve Part 1: ISO 10770-1:1998, MOD four-way directional flow control valve test method GB/T 15623.2-2003 Hydraulic transmission electrically modulated hydraulic control valve Part 1: ISO 10770-2:1998, MOD three-way directional flow control valve test method GB/T 17446-1998 Fluid transmission system and component terminology idt ISO 5598:1985 GB/T 17483-1998 Hydraulic pump airborne noise level determination specification eqv ISO 4412-1:1991 GB/T 17484-1998 Identification and control of purification methods for hydraulic oil sampling containers idt ISO 3722:1976 GB/T 17485-1998 Parameter definitions and letter symbols for hydraulic pumps, motors and integral transmissions idt ISO 4391:1983 GB/T 17486-1998 Evaluation of pressure drop flow characteristics of hydraulic filters idt ISO 3968:1981 GB/T 17487-1998 Four-port and five-port hydraulic servo valve mounting surface idt ISO 10372:1992 GB/T 17488-1998 Verification of flow fatigue characteristics of hydraulic filter element idt ISO 3724:1976 GB/T 17489-1998 Hydraulic particle contamination analysis extraction of liquid samples from working system pipelines idt ISO 4021:1992 GB/T 17490-1998 Identification of hydraulic control valve ports, base plates, control devices and electromagnets idt ISO 9461:1992 GB/T 17491-1998 Determination of steady-state performance of hydraulic pumps, motors and overall transmissions idt ISO 4409:1986 GB/T 18853-2002 Multiple-pass method for evaluating filter element filtration performance of hydraulic transmission filters ISO 16889:1999, MOD GB/T 18854-2002 Calibration of automatic particle counters for hydraulic transmission fluids ISO 11171:1999, MOD 3. Industry standards JB/T 2184-1977 Hydraulic component model compilation method JB/T 5120-2000 Cycloidal rotary valve type fully hydraulic steering gear JB/T 5919-1991 (2001) Crankshaft connecting rod radial piston hydraulic motor mounting flange and shaft extension dimensions and markings (1) JB/T 5920.1-1991 (2001) Inner curve (outward acting) type low-speed high-torque hydraulic motor mounting flange and shaft extension dimensions series Part 1 20~25MPa shaft rotary motor JB/T 5921-1991 (2001) Basic parameters of coolers for hydraulic systems JB/T 5922-1991 Graphic symbols for hydraulic two-way cartridge valves JB/T 5923-1997 Technical conditions for pneumatic cylinders neq JIS B83771991 JB/T 5924-1991 refers to NFPA/T2.6.1M-1974 Verification method for rated fatigue pressure and rated static pressure of hydraulic component pressure chamber JB/T 5963-1991 Valve hole size of two-way, three-way and four-way threaded cartridge valves JB/T 5967-1991 (2001) Air medium quality grade for pneumatic components and systems JB/T 6375-1992 (2001) Dimension series and tolerances of rubber seals for pneumatic valves JB/T 6376-1992 (2001) Groove dimensions and tolerances of rubber sealing rings for pneumatic valves JB/T 6377-1992 (2001) Pneumatic port connection thread types and dimensions JB/T 6378-1992 (2001) Technical conditions for pneumatic reversing valves JB/T 6379-1992 (2001) refer to ISO 6431:1992 Installation dimensions of detachable single-rod cylinders with cylinder inner diameters of 32 to 320 mm JB/T 6656-1993 (2001) Installation groove types, dimensions and tolerances of sealing rings for cylinders JB/T 6657-1993 (2001) Dimension series and tolerances of sealing rings for cylinders JB/T 6658-1993 (2001) Groove dimensions and tolerances of O-rings for pneumatics JB/T 6659-1993 (2001) Dimensions and tolerances of O-rings for pneumatics JB/T 6660-1993 (2001) General technical conditions for rubber seals for pneumatics JB/T 7033-1993 (2001) refer to ISO 9110-1: 1990 General principles of hydraulic measurement technology JB/T 7034-1993 Hydraulic diaphragm accumulator type and size JB/T 7035.1-1993 Hydraulic bladder accumulator type and size A type JB/T 7035.2-1993 Hydraulic bladder accumulator type and size AB type JB/T 7036-1993 Hydraulic isolation accumulator technical conditions JB/T 7037-1993 Hydraulic isolated accumulator test method JB/T 7038-1993 Hydraulic isolated accumulator shell technical conditions JB/T 7039-1993 Hydraulic vane pump technical conditions JB/T 7040-1993 Hydraulic vane pump test method JB/T 7041-1993 Hydraulic gear pump technical conditions JB/T 7042-1993 Hydraulic gear pump test method JB/T 7043-1993 Hydraulic axial piston pump technical conditions JB/T 7044-1993 Hydraulic axial piston pump test method JB/T 7046-1993 (2001) refers to NFPA/T3.4.7M-1975 Hydraulic accumulator pressure chamber rated fatigue pressure and rated static pressure verification method JB/T 7056-1993 (2001) General technical conditions for pneumatic pipe joints JB/T 7057-1993 (2001) Technical conditions for speed-adjustable pneumatic pipe joints JB/T 7058-1993 (2001) Technical conditions for quick-change pneumatic pipe joints JB/T 7373-1994 (2001) Gear and rack swing cylinder JB/T 7374-1994 Technical conditions for pneumatic air filters JB/T 7375-1994 Technical conditions for pneumatic lubricators JB/T 7376-1994 Technical conditions for pneumatic air pressure reducing valves JB/T 7377-1994 (2001) Cylinder inner diameter 32~250mm Integral single-rod cylinder installation dimensions eqv ISO 6430:1992 JB/T 7857-1995 (2001) Hydraulic valve pollution sensitivity assessment method JB/T 7858-1995 (2001) Hydraulic component cleanliness assessment method and hydraulic component cleanliness index JB/T 7938-1999 Hydraulic pump station fuel tank nominal capacity series JB/T 7939-1999 Single piston rod hydraulic cylinder two-chamber area ratio eqv ISO 7181:1991 JB/T 8727-1998 Hydraulic hose assembly JB/T 8728-1998 Low-speed high-torque hydraulic motor JB/T 8729.2-1998 Technical conditions for hydraulic multi-way reversing valve JB/T 8729.2-1998 Test method for hydraulic multi-way reversing valve JB/T 8884-1999 * * (JB/Z 347-89) Pneumatic component product model compilation method JB/T 8885-1999 * * (ZBJ 22008-88) Hydraulic hose assembly technical conditions JB/T 9157-1999 Hydraulic and pneumatic ball expansion plug installation dimensions JB/T 10205-2000 Hydraulic cylinder technical conditions JB/T 10206-2000 Cycloidal hydraulic motor JB/T 10364-2002 Hydraulic single valve JB/T 10365-2002 Hydraulic solenoid reversing valve JB/T 10366-2002 Hydraulic speed regulating valve JB/T 10367-2002 Hydraulic pressure reducing valve JB/T 10368-2002 Hydraulic throttle valve JB/T 10369-2002 Hydraulic manual and roller reversing valve JB/T 10370-2002 Hydraulic sequence valve JB/T 10371-2002 Hydraulic unloading relief valve JB/T 10372-2002 Hydraulic pressure relay JB/T 10373-2002 Hydraulic electro-hydraulic reversing valve and hydraulic reversing valve JB/T 10374-2002 Hydraulic relief valve