Internal reflux to reflux ratio

Internal reflux to reflux ratio, Total:260 items.

The international standard classification for "Internal reflux to reflux ratio" includes: Check valves , Power capacitors , Water supply systems , Cranes , Other standards related to nuclear energy , Water quality in general , Fluid power systems in general .

The Chinese standard classification for "Internal reflux to reflux ratio" includes: Valve , Power capacitor , Building water supply and draining engineering , Raw pharmaceutical material processing machinery and equipment , Accelerator for agriculture and industry , Hydraulic fluid , Water supply and draining engineering in general , Hydraulic and pneumatic device .

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Group Standards of the People's Republic of China

• T/WZBF 010-2022 Axial flow check valve
• T/ZZB 2878-2022 Metal seal non-slam axial flow check valves
• T/CMEA 32-2023 Technical Standard for Backfilling Project by using fluidized earth-based materials
• T/CWAN 0005-2021 Recommended practice for reflow soldering of lead-free solder for rectifier devices
• T/BIE 004-2023 Through hole reflow soldering technical specifications group standard
• T/GDID 1086-2023 Backflow prevention angle valve
• T/QGCML 1555-2023 Mining face installation process
• T/QGCML 3335-2024 Scrap metal recycling consulting service process
• T/BIE 003-2023 Through Hole Reflow Soldering Specifications
• T/ZZB 2499-2021 Axial flow check valve

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

• GB/T 26215-2010 Capacitors of damping absorption circuit for HVDC transmission systems converters
• GB/T 26215-2023 Capacitors for snubber circuits of HVDC transmission system converter valves
• GB/T 21387-2008 Aaxial flow check valve

工业和信息化部

• JB/T 13460-2018 Non-slam (axial) check valves for liquefied natural gas
• JB/T 13887-2020 Automatic recirculation valves

Professional Standard - Urban Construction

• CJ/T 255-2007 Non-slam nozzle check valve
• CJ/T 160-2010 Double check valve backflow prevention assembly

Henan Provincial Standard of the People's Republic of China

• DB41/T 2263-2022 Consumer Product Recall Workflow

Professional Standard - Machinery

• JB/T 20044-2014 Reflux Extracting Concentrator Unit
• JB/T 20044-2005 Hot-gas reflux extracting & concentration unit
• JB/T 12239-2015 Feedback-aging test methods for the DC power supply
• JB/T 5242-2013 Mobile cranes—Test code of slewing mechanism
• JB/T 12116-2015 High pressure reflux lance for desulphurization and denitration

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

• GB/T 34127-2017 Fixed energy high intensity proton cyclotron within the range of 10 MeV～20 MeV

Professional Standard - Petrochemical Industry

• SH/T 0430-1992 Determination method for equilibrium reflux boiling point of brake fluid

国家能源局

• NB/SH/T 0430-2019 Standard test method for determination of equilibrium reflux boiling point of motor vehicle brake fluid

未注明发布机构

• ASSE ANSI 1024-2023 Performance Requirements for Dual Check Backflow Preventers

Hebei Provincial Standard of the People's Republic of China

• DB13/T 5821-2023 Technical regulations for backfilling of ready-mixed fluid solidified soil

Professional Standard - Recommended Standards for Engineering Construction

• CECS 184-2005 Technical specification for prevention of backflow pollution in water supply system

Professional Standard - Civil Engineering

• CECS 184-2005（条文说明） Technical specification for prevention of backflow pollution in water supply system(explanation)

国家市场监督管理总局、中国国家标准化管理委员会

• GB/T 786.2-2018 Fluid power systems and components—Graphical symbols and circuit diagrams—Part 2:Circuit diagrams

Professional Standard - Energy

• NB/T 11063-2023 Recovery equirements of electrolyte for vanadium flow battery

Professional Standard - Railway

• TB/T 2802-1997 Electrified Railway Traction Network Backflow Technical Requirements

American National Standards Institute （ANSI)

• ANSI/AWWA C510-2017 Double Check-Valve Backflow Prevention Assembly
• ANSI/AWWA C510-2007 Double Check Valve Backflow-Prevention Assembly
• ANSI/ASSE 1024-2004 Dual Check Valve Type Backflow Preventers
• ANSI/ASME A112.18.7M-1999 Deck Mounted Bath/Shower Transfer Valves with Internal Backflow Prevention
• ANSI/AWWA C511-2017 Reduced-Pressure Principle Backflow Prevention Assembly
• ANSI/ASSE 1013-2011 Performance Requirements for Reduced Pressure Principle Backflow Preventers and Reduced Pressure Principle Fire Protection Backflow Preventers
• ANSI/ASSE 1035-2002 Laboratory Faucet Backflow Preventer
• ANSI/AWWA C511-2007 Reduced Pressure Principle Backflow Prevention Assembly
• ANSI/ASSE 1004-2009 Backflow Prevention Requirements for Commercial Dishwashing Machines
• ASSE 1053-2019 (R2023) Performance Requirements for Dual Check Backflow Preventer Wall Hydrants - Freeze Resistant Type
• ASSE/ANSI 1024-2023 Performance Requirements for Dual Check Backflow Preventers
• ASSE/ANSI 1052-2023 Performance Requirements for Hose Connection Backflow Preventers
• ANSI/ASSE 1013-2021 Performance Requirements for Reduced Pressure Principle Backflow Prevention Assemblies
• ANSI/ASSE 1015-2021 Performance Requirements for Double Check Backflow Prevention Assemblies
• ANSI/ASSE 1052-2004 Performance Requirements for Hose Connection Backflow Preventers
• ANSI/ASSE 1048-2011 Performance Requirements for Double Check Detector Fire Protection Backflow Prevention Assemblies
• ANSI/ASSE 1032-2011 Performance Requirements for Dual Check Valve Type Backflow Preventers for Carbonated Beverage Dispensers, Post Mix Type

American Water Works Association (AWWA)

• ANSI/AWWA C510-2017(2021) Double Check-Valve Backflow Prevention Assembly
• ANSI/AWWA C511-2017(2021) Reduced-Pressure Principle Backflow Prevention Assembly
• AWWA C510-2007 Double Check Valve Backflow Prevention Assembly
• AWWA C510-1997 Double Check Valve Backflow Prevention Assembly

SCC

• CAN 3-B64.6-M86-1986 Backflow Preventers - Dual Check Valve Type
• CAN/CSA-B64.5-1994 Backflow Preventers, Double Check Valve Type (DCVA)
• CAN/CSA-B64.6-1994 Backflow Preventers, Dual Check Valve Type (DuC)
• CAN/CSA-B64.6-M88-1988 Backflow prevention devices with two check valves (DAr2C)
• AWWA ACE63185 Meters and Backflow Protection
• AWWA ACE63015 Jordan River Return Flow Study
• IAPMO TS 8-2006 Backflow Preventers and Relief Valves
• CAN/CSA-B64.4-M88-1988 Reduced Pressure Backflow Preventers (DArPR)
• AWWA ACE65152 Backflow Assembly Design Criteria
• AWWA ACE70930 Backflow Assembly Design Criteria
• CSA B64.10-17/B64.10.1-2017 Selection and installation of backflow prevention devices/Maintenance and field testing of backflow prevention devices
• AS 2845.2:1994 Water supply - Backflow prevention devices - Air gaps and break tanks
• AWWA REUSE52088 Watershed Analysis of Water Reuse Systems
• AS 2845:1986 Water supply - Mechanical backflow prevention devices
• AWWA ACE70931 Backflow Prevention Assembly Installation Criteria
• AWWA ACE65415 The Need for Backflow Prevention Programs
• AWWA DSS91015 Training for Personnel in the Backflow Prevention Industry
• AWWA WQTC50351 Study of Flow Characteristics in a Recirculation Zone Using Light Scattering
• CAN/CSA-B64.3-1994 Backflow Preventers, Dual Check Valve Type with Atmospheric Port (DCAP)
• DANSK DS/EN 13437:2003 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• CAN/CSA-B64.10-01/B64.10.1-2001(R2007) Manual for the Selection and Installation of Backflow Prevention Devices/Manual for the Maintenance and Field Testing of Backflow Prevention Devices
• CAN/CSA-B64.8-M88-1988 Intermediate Vent Backflow Preventers (DArVI)
• HOLDEN HN 2384-2013 Hose - Power Steering Return - Low Pressure
• CAN/CSA-B64.3-M88-1988 Discharge Orifice Backflow Preventers (DArOD)
• HOLDEN HN 2384-2006 Hose - Power Steering Return - Low Pressure
• NS-EN 13437:2003 Packaging and material recycling — Criteria for recycling methods — Description of recycling processes and flow chart
• CAN/CSA-B64.8-1994 Backflow Preventers, Dual Check Valve Type with Intermediate Vent (DuCV)
• CAN/CSA-B64 Series-M88-1988 Backflow Preventers and Vacuum Breakers
• CAN/CSA-B64 Series-2007 Backflow Preventers and Vacuum Breakers
• VDI 2343 BLATT 2-2010 Recycling of electrical and electronic equipment — Logistics
• DANSK DS/EN 12729:2003 Devices to prevent pollution by backflow of potable water – Controllable backflow preventer with reduced pressure zone – Family B – Type A
• CAN/CSA-B64 Series-2001(R2007) Backflow Preventers and Vacuum Breakers
• CAN/CSA-B64 Series-1994 Backflow Preventers and Vacuum Breakers
• CAN/CSA B64 SERIES-2001 Backflow Preventers and Vacuum Breakers
• CSA B64 Series-1994 Backflow Preventers and Vacuum Breakers
• NS-EN 12729:2002 Devices to prevent pollution by backflow of potable water — Controllable backflow preventer with reduced pressure zone — Family B — Type A
• NS-EN 12729:2023 Devices to prevent pollution by backflow of potable water — Controllable backflow preventer with reduced pressure zone — Family B — Type A
• AENOR UNE-EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• AWWA DSS90003 Types of Backflow Prevention Assemblies and Their Installation
• MIL MIL-DTL-1183/1A-2016 FITTINGS, PIPE, CAST BRONZE, SILVER-BRAZING; BEND, PIPE, RETURN
• MIL MIL-DTL-32537-2015 Flowable Fill Backfill Material, Rapid Setting
• NS-EN 14454:2005 Devices to prevent pollution by backflow of potable water — Hose union backflow preventer DN 15 to DN 32 — Family H, type A
• CSA ASSE SERIES 5000-1991 Series 5000 - Backflow Prevention Assemblies - Standards Program
• MIL MIL-F-1183/1-1983 FITTINGS, PIPE, CAST BRONZE, SILVER-BRAZING; BEND, PIPE, RETURN
• AWWA ACE61850 Review of Zero Liquid Options and Issues
• CAN/CSA-B64.4-1994 Backflow Preventers, Reduced Pressure Principle Type (RP)
• VDI 2343 BLATT 2-2010 Recycling of electrical and electronic equipment — Logistics
• AENOR UNE-EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A
• DANSK DS/EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 inclusive - Family H, type A
• CSA B64.10-17/B64.10.1-2017(R2021) Selection and Installation of Backflow Preventers/Maintenance and Field Testing of Backflow Preventers, Includes Update No. 1 (2019)
• AWWA WQTC52824 Backwash Water Return Effects: Evaluation and Mitigation
• ANSI/CAN/UL/ULC 1201:2018(C2023) Standard for sensor-based backflow prevention systems
• AWWA WQTC65898 Identifying Backflow Hotspots Using Meters and Models
• IAPMO IGC 267-2015 Hydrants without Integral Backflow Preventers
• AWWA DSS91016 Backflow Prevention vs. Fire Suppression Systems: A Health Perspective
• AWWA DSS63732 Using Surge Modeling to Reduce Backflow Vulnerability
• MIL MIL-V-50010-1959 VALVE, ANTIBACK DRAFT, PROTECTIVE SHELTER, M2 (NO S/S DOCUMENT)
• AWWA ACE69098 Cross Connection and Backflow Vulnerability: Monitoring and Detection
• AWWA ACE95104 Evaluation of Waste Stream Recycling Alternatives: A Case Study

Institute of Interconnecting and Packaging Electronic Circuits (IPC)

• IPC TA-722 SECTION 6 Reflow Soldering, General

Association Francaise de Normalisation

• NF EN 14506:2005 Protection devices against pollution of drinking water by return - Automatic return diverter - Family H, type C
• NF EN 13434:2021 Protection devices against pollution by return of drinking water - Mechanical disconnector activated according to the flow - Family G, type B
• NF P43-021:2008 Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B.
• NF EN 13437:2003 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow diagram
• NF H60-125*NF EN 13437:2003 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• NF P43-010*NF EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• NF EN 13433:2021 Protection devices against pollution by return of drinking water - Direct-acting mechanical disconnector - Family G, type A
• NF P43-016*NF EN 14454:2005 Devices to prevent pollution by backlow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A.
• NF X10-114:1993 Measurement of fluid flow in closed conduits. Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or pitot static tubes.
• NF EN 14454:2005 Protection devices against pollution of drinking water by return - End disconnector DN 15 to DN 32 - Family H, type A
• NF EN 13077:2023 Protection devices against pollution of drinking water by return - Overflow with non-circular overflow (total) - Family A - Type B
• NF A85-009-13*NF EN IEC 60974-13:2021 Arc welding equipment - Part 13 : welding current return clamp
• NF EN 14622:2005 Protection devices against pollution of drinking water by return - Overflow with circular overflow (limited) - Family A, Type F
• NF EN 13076:2003 Protection devices against pollution of drinking water by return - Total overflow - Family A, type A

American Industrial Hygiene Association （AIHA)

• ASSE 1048-2009 Performance Requirements for Double Check Detector Fire Protection Backflow Prevention Assemblies
• ASSE 1015-2009 Performance Requirements for Double Check Backflow Prevention Assemblies and Double Check Fire Protection Backflow Prevention Assemblies
• ASSE 5000-5013-1998 ASSE 1013 Reduced Pressure Principle Backflow Preventers (RP) & Reduced Pressure Fire Protection Backflow Preventers (RFP)
• ASSE 1013-2011 Performance Requirements for Reduced Pressure Principle Backflow Preventers and Reduced Pressure Principle Fire Protection Backflow Preventers
• ASSE 5000-5015-1998 ASSE 5015 Double Check Backflow Prevention Assemblies (DC) & Double Check Fire Protection Backflow Prevention Assemblies (DCF)
• ASSE 5000-APPENDIX C-1998 Backflow Test Kit Schematics
• ASSE 1013-2009 Performance Requirements for Reduced Pressure Principle Backflow Preventers and Reduced Pressure Principle Fire Protection Backflow Preventers
• ASSE 1015-1999 Performance Requirements for Double Check Backflow Prevention Assemblies and Double Check Fire Protection Backflow Prevention Assemblies
• ASSE 5000-5052-1998 ASSE 1052 Hose Connection Backflow Preventers
• ASSE 1013-1999 Performance Requirements for Reduced Pressure Principle Backflow Preventers and Reduced Pressure Fire Protection Principle Backflow Preventers Errata November 13, 2002
• ASSE 5000-5130-1998 Backflow Prevention Assembly Repairer Professional Qualifications Standard
• ASSE 5000-5110-1998 Backflow Prevention Assembly Tester Professional Qualifications Standard
• ASSE 5000-5047-1998 ASSE 1047 Reduced Pressure Detector Fire Protection Backflow Prevention Assemblies (RPDF)

IPC - Association Connecting Electronics Industries

• IPC TM-650 2.6.27-2009 Thermal Stress@ Convection Reflow Assembly Simulation
• IPC TM-650 2.6.27A-2017 Thermal Stress@ Convection Reflow Assembly Simulation
• IPC 7801-2015 Reflow Oven Process Control Standard
• IPC 7801 CHINESE-2015 Reflow Oven Process Control Standard
• IPC 7711 3.8.5-1998 J-Lead Removal Hot Gas Reflow System
• IPC 7711 3.7.7-1998 Gull Wing Removal (Four-Sided) Hot Gas (Air) Reflow Method
• IPC 9631 CD-2010 Users Guide for IPC-TM-650@ Method 2.6.27@ Thermal Stress@ Convection Reflow Assembly Simulation
• IPC 9631-2010 Users Guide for IPC-TM-650@ Method 2.6.27@ Thermal Stress@ Convection Reflow Assembly Simulation

American Society for Testing and Materials (ASTM)

• ASTM D5130-95(1999) Standard Test Method for Open-Channel Flow Measurement of Water Indirectly by Slope-Area Method
• ASTM D5130-95(2008) Standard Test Method for Open-Channel Flow Measurement of Water Indirectly by Slope-Area Method
• ASTM D5130-95(2014) Standard Test Method for Open-Channel Flow Measurement of Water Indirectly by Slope-Area Method

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc.

• ASHRAE OR-10-050-2010 Metastable Flow inside Capillary Tubes: A Critical Review
• ASHRAE 3999-1996 Lubricant Return Comparison of Naphthenic and Polyol Ester Oils in R-134a Household Refrigeration Applications
• ASHRAE 4688-2004 Thermal Mixing of Outdoor and Return Airflows in Typical Air-Handling Units (RP-1045)

AENOR

• UNE 26376:1987 BRAKE FLUIDS. WET REFLUX BOILING POINT.
• UNE 26375:1987 BRAKE FLUIDS. EQUILIBRIUM REFLUX BOILING POINT.
• UNE-EN 13437:2004 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• UNE-EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• UNE-EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A
• UNE-EN 14506:2006 Devices to prevent pollution by backflow of potable water. Automatic diverter. Family H, type C.

VDI - Verein Deutscher Ingenieure

• VDI 2343 Blatt 2-2000 Recycling of electrical and electronical products - External and internal logistics
• VDI 2343 Blatt 2-2008 Recycling of electrical and electronical products - Logistics
• VDI 2343 Blatt 2-1998 Recycling of electrical and electronical products - External and internal logistics

US-FCR

• FCR FED H-08-4 VOL 3 SEC II 621.5-1988 EXHAUST AND/OR RETURN BRANCH DUCT
• FCR FED H-08-4 VOL 3 SEC II 644.4-1988 CONDENSATE RETURN AROUND OPENINGS
• FCR UFGS-33 63 14-2006 EXTERIOR BURIED PUMPED CONDENSATE RETURN

Association of German Mechanical Engineers

• DVS 2613-2004 Reflow soldering temperature profile optimization

ESDU - Engineering Sciences Data Unit

• ESDU 89038-1989 Reflux condensation in vertical tubes.
• SPF-M3-4-2007 CFD studies of fluid mixing in the loop: manifold design.

Danish Standards Foundation

• DS/EN IEC 60974-13:2021 Arc welding equipment – Part 13: Welding current return clamp
• DS/EN 13437:2003 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• DS/EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• DS/EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 inclusive - Family H, type A
• DS/EN 14506:2005 Devices to prevent pollution by backflow of potable water - Automatic diverter - Familiy H, type C

Society of Automotive Engineers (SAE)

• SAE J189-2012 Power Steering Return Hose Low Pressure
• SAE J189-2003 Power Steering Return Hose - Low Pressure

SAE - SAE International

• SAE J189-1989 Power Steering Return Hose - Low Pressure (December 1989)
• SAE J189-1998 Power Steering Return Hose - Low Pressure
• SAE J189-1970 POWER STEERING RETURN HOSE - LOW PRESSURE

German Institute for Standardization

• DIN EN 13437:2004-04 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart; German version EN 13437:2003
• DIN EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B, type A; German version EN 12729:2002
• DIN EN 13437:2004 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart; German version EN 13437:2003
• DIN EN 14451:2005 Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 8 to DN 80 - Family D, type A; German version EN 14451:2005
• DIN 74341:1987 Air braking systems; shuttle valve with backflow
• DIN 43137:1978 Electric traction; wires for earthing and return current
• DIN 43137:1978-06 Electric traction; wires for earthing and return current
• DIN 74341:1987-04 Air braking systems; shuttle valve with backflow
• DIN EN 12729:2023-07 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A; German version EN 12729:2023
• DIN EN 12729:2020 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A; German and English version prEN 12729:2020
• DIN SPEC 1108-3:2016-10 Services for waste and recycling logistics, road cleaning and winter maintenance - Part 3: Waste and recycling logistics
• DIN EN 12729:2023 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• DIN EN 14454:2005-08 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H; type A; German version EN 14454:2005
• DIN EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H; type A; German version EN 14454:2005
• DIN 43138:1980 Flexible cables for overhead equipment and return current
• DIN 24550-5:1992-08 Fluid power; hydraulic filters; tank top return-line filter fitting dimensions
• DIN 43138:1980-09 Flexible cables for overhead equipment and return current

Canadian Standards Association (CSA)

• CSA B64.10-07/B64.10.1-07-2007 Selection and installation of backflow preventers/Maintenance and field testing of backflow preventers fifth edition
• CSA B64.10-07/B64.10.1-07 UPD 1-2008 Selection and installation of backflow preventers/Maintenance and field testing of backflow preventers Fifth Edition
• CSA B64 Series-2021 Backflow preventers and vacuum breakers
• CSA B64 SERIE-07-2007 Vacuum breakers and backflow prevention devices
• CSA B64 SERIES-07-2007 Backflow preventers and vacuum breakers Fifth Edition; Update No 1: July 2008; Update No 2: August 2010
• CSA B64 SERIES-07 UPD 1-2008 Backflow preventers and vacuum breakers Fifth Edition

European Committee for Standardization (CEN)

• EN 12729:2002 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B; Type A
• EN 14451:2005 Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 8 to DN 80 - Family D, type A
• EN 12729:2023 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A

GSO

• OS GSO EN 13437:2009 Packaging and material recycling — Criteria for recycling methods — Description of recycling processes and flow chart
• GSO EN 12729:2022 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• BH GSO EN 12729:2023 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• GSO EN 14454:2024 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A

British Standards Institution (BSI)

• BS EN 13437:2003 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• BS EN 13437:2004 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• BS EN 12729:2002(2009) Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B. Type A
• BS EN 12729:2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B. Type A
• BS EN 12729:2023 Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A
• BS EN 12729:2002 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B. Type A
• BS EN 14454:2005(2006) Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 inclusive - Family H, type A
• BS EN 14454:2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 inclusive - Family H, type A
• BS 5154:1991 Specification for copper alloy globe, globe stop and check, check and gate valves
• 20/30415618 DC BS EN 12729. Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone. Family B. Type A
• PD CEN/CLC/TR 17603-31-13:2021 Space Engineering. Thermal design handbook. Fluid Loops
• BS PD CEN/CLC/TR 17603-31-13:2021 Space Engineering. Thermal design handbook. Fluid Loops
• BS EN IEC 60974-13:2021 Arc welding equipment. Welding current return clamp
• BS EN 14506:2005(2009) Devices to prevent pollution by backflow of potable water - Automatic diverter - Family H, type C

Lithuanian Standards Office

• LST EN 13437-2004 Packaging and material recycling - Criteria for recycling methods - Description of recycling processes and flow chart
• LST EN 12729-2003 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A
• LST EN 14454-2005 Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A
• LST EN 14506-2005 Devices to prevent pollution by backflow of potable water - Automatic diverter - Family H, type C

American Welding Society (AWS)

• WRC 417:1996 Design Guide to Reduce Potential for Vibration Caused by Fluid Flow Inside Pipes - Review and Survey

SE-SIS

• SIS SEN 30 02 41-1957 Copper Tube Withdrawal, 10A, 250V, 2-Pole Shunt
• SIS SEN 30 02 42-1957 Copper Tube Withdrawal, 10A, 250V, 2-Pole Shunt

ES-UNE

• UNE-EN 12729:2023 Devices to prevent pollution by backflow of potable water - Controllable backflow preventer with reduced pressure zone - Family B - Type A

JP-JWWA

• JWWA B134-2013 Reduced pressure principle backflow preventers for water supply

Underwriters Laboratories (UL)

• UL 1469-2006 UL Standard for Safety Strength of Body and Hydraulic Pressure Loss Testing of Backflow Special Check Valves Second Edition
• UL 1469-2010 UL Standard for Safety Strength of Body and Hydraulic Pressure Loss Testing of Backflow Special Check Valves
• UL 1469 BULLETIN-2007 UL Standard for Safety Strength of Body and Hydraulic Pressure Loss Testing of Backflow Special Check Valves

IN-BIS

• IS 5312 Pt.1-1984 Specification for swing return (check) valves for water plants - Part 1, single door type

CZ-CSN

• CSN ON 70 4211-1964 Spiral reflux condenser with grinding version
• CSN 36 2324-1971 Earth return brushes of electric tractive vehicles

PL-PKN

• PN E05024-1992 Corrosion protection. Reduction of leakage of stray currents from traction return circuits of direct current

United States Navy

• NAVY QPL-24630-2012 VALVES, CHECK, IN-LINE, FOR HYDRAULIC FLUID AND LUBRICATING OIL FLUID
• NAVY QPL-24630-6 NOTICE 1-2008 Valves, Check, In-Line, for Hydraulic Fluid and Lubricating Oil Fluid

Korean Agency for Technology and Standards (KATS)

• KS V 7491-2016(2021) Test procedure for backdraft preventing valve in offshore drill string

International Electrotechnical Commission (IEC)

• IEC 60974-13:2021 Arc welding equipment - Part 13: Welding current return clamp
• IEC 60974-13:2021 RLV Arc welding equipment - Part 13: Welding current return clamp
• IEC 60974-4:2016 Arc welding equipment - Part 13: Welding current return clamp
• IEC 60974-1:2019 Arc welding equipment - Part 13: Welding current return clamp

Standard Association of Australia （SAA）

• AS 2845.2:1996 Water supply - Backflow prevention devices - Air gaps and break tanks

International Organization for Standardization (ISO)

• ISO 1219-2:1995 Fluid power systems and components - Graphic symbols and circuit diagrams - Part 2: Circuit diagrams

HU-MSZT

• MSZ 13517-1964 Air circulation blocking device for automobiles. strike back board
• MSZ 700/31.lap-1965 Video content review

RU-GOST R

• GOST R 53756-2009 Resources saving. Packaging. Criteria for recycling methods and description of recycling processes with registration flow chart

VN-TCVN

• TCVN 1806-2-2009 Fluid power systems and components.Graphic symbols and circuit diagrams.Part2:Circuit diagrams

Japanese Industrial Standards Committee (JISC)

• JIS S 3200-4:1997 Equipment for water supply service -- Test method of prevention from back current

CEN - European Committee for Standardization

• EN 14506:2005 Devices to prevent pollution by backflow of potable water - Automatic diverter - Family H@ type C

GM Daewoo

• GMKOREA EDS-T-7704-2011 Test Method for Equilibrium Reflux Boiling Point of Brake Fluid

Indonesia Standards

• SNI 06-4421-1997 Test methods of chemical oxygen by open reflux

European Committee for Electrotechnical Standardization（CENELEC）

• EN IEC 60974-13:2021 Arc welding equipment - Part 13: Welding current return clamp

YU-JUS

• JUS L.H2.020-1991 Determination of flovvrate of fluids in closed conduits of circular cross-section. Method of velocity measurement at one point of the cross-section

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