Engineering

prEN IEC 61375-2-3:2025 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
Categories: Railway rolling stock
Committee: CLC/TC 9X (Electrical and electronic applications for railways)
Origin: CENELEC
Close date: 20 Feb 2026
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prEN IEC 61375-2-5:2025 - Electronic railway equipment - Train communication network (TCN) - Part 2-5: Ethernet train backbone
Categories: Railway rolling stock
Committee: CLC/TC 9X (Electrical and electronic applications for railways)
Origin: CENELEC
Close date: 20 Feb 2026
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ISO/DIS 15500-21 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 21: Discharge line closures
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 20 Feb 2026
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ISO/DIS 15500-23 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 23: Gas temperature sensor
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 20 Feb 2026
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IEC 60079-29-3 ED2 - Explosive atmospheres - Part 29-3: Gas detectors - Guidance on functional safety of fixed gas detection systems
Categories: Electrical equipment. Special conditions
Committee: TC 31 (error)
Origin: IEC
Close date: 20 Feb 2026
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IEC 60947-7-4 ED3 - Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors
Categories: Switchgear and controlgear
Committee: TC 121/SC 121A (error)
Origin: IEC
Close date: 20 Feb 2026
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IEC 61189-3-720 ED1 - Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 3-720: Test methods for interconnection structures (circuit boards) - Transmission loss test method for high frequency multilayer circuit boards
Categories: Printed circuits and boards
Committee: TC 91 (error)
Origin: IEC
Close date: 20 Feb 2026
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IEC 61375-2-3 ED2 - Electronic railway equipment - Train communication network (TCN) - Part 2-3: TCN communication profile
Categories: Railway rolling stock
Committee: TC 9 (error)
Origin: IEC
Close date: 20 Feb 2026
Draft Details
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IEC 61375-2-5 ED2 - Electronic railway equipment - Train communication network (TCN) - Part 2-5: Ethernet train backbone
Categories: Railway rolling stock
Committee: TC 9 (error)
Origin: IEC
Close date: 20 Feb 2026
Draft Details
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IEC 62788-2-1/AMD1 ED1 - Amendment 1 - Measurement procedures for materials used in photovoltaic modules - Part 2-1: Polymeric materials - Frontsheet and backsheet - Safety requirements
Categories: Solar energy engineering
Committee: TC 82 (error)
Origin: IEC
Close date: 20 Feb 2026
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IEC 63211-3-3 ED1 - Durability test methods for electronic displays - Part 3-3：Mechanical tests - Dynamic stress
Categories: Electronic display devices
Committee: TC 110 (error)
Origin: IEC
Close date: 20 Feb 2026
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EN IEC 62788-2-1:2023/prA1:2025 - Amendment 1 - Measurement procedures for materials used in photovoltaic modules - Part 2-1: Polymeric materials - Frontsheet and backsheet - Safety requirements
Categories: Solar energy engineering
Committee: CLC/TC 82 (Solar photovoltaic energy systems)
Origin: CENELEC
Close date: 20 Feb 2026
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ISO/DIS 15500-1 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 1: General requirements and definitions
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-10 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 10: Gas-flow adjuster
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-11 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 11: Gas/air mixer
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-12 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 12: Pressure relief valve (PRV)
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-13 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 13: Pressure relief device (PRD)
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-14 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 14: Excess flow valve
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-15 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 15: Gas-tight housing and ventilation hose
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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ISO/DIS 15500-16 - Road vehicles — Compressed natural gas (CNG) fuel system components — Part 16: Rigid fuel line in stainless steel
Categories: Road vehicles. Internal combustion engines
Committee: ISO/TC 22/SC 41 (Specific aspects for gaseous fuels)
Origin: ISO
Close date: 23 Feb 2026
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