2 2 3 甲基丁烷检测标准

Alarm systems - Intrusion and hold-up systems Part 2-3: Requirements for microwave detectors; German version EN 50131-2-3:2008

Draft Document - Medical electrical equipment - Part 2-3: Particular requirements for the basic safety and essential performance of short-wave therapy equipment (IEC 62D/1846/CDV:2021); German and English version EN 60601-2-3:2015/prA2:2021

Amendment 2 - Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)

Coaxial cables Part 2-3: Sectional specification for cables used in cabled distribution networks - Distribution and trunk cables for systems operating at 5 MHz - 1 000 MHz; German version EN 50117-2-3:2004 + A1:2008 + A2:2013

Industrial communication networks - Fieldbus specifications - Part 3-2: Data-link layer service definition - Type 2 elements

Industrial communication networks - Profiles - Part 3-2: Functional safety fieldbuses - Additional specifications for CPF 2

Amendment 2 - Medical electrical equipment - Part 2-3: Particular requirements for the basic safety and essential performance of short-wave therapy equipment

Industrial networks - Profiles - Part 2-3: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 - CPF 3

Cable trunking systems and cable ducting systems for electrical installations Part 2-3: Particular requirements for slotted cable trunking systems intended for installation in cabinets; German version EN 50085-2-3:2010

Electric cables - Calculation of the current rating - Part 2-3: Thermal resistance - Cables installed in ventilated tunnels

Switches for household and similar fixed electrical installations - Part 2-3: Particular requirements - Time-delay switches (TDS)

Standard for Software Cybersecurity for Network-Connectable Products, Part 2-3: Particular Requirements for Security and Life Safety Signaling Systems

Amendment 2 - Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements

Household and similar electrical appliances - Safety - Part 2-3: Particular requirements for electric irons

Rotating electrical machines - Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors

Electrical installations for lighting and beaconing of aerodromes - Part 3-2: Requirements for power supplies - Particular requirements for series circuits

E-Transporters - Part 3-2: Performance test methods for mobility of cargo e-Transporters

Electronic paper displays. Part 3-2. Measuring methods. Electro-optical

Draft Document - Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements (CIS/A/961/CDV:2011 + CIS/A/986/CDV:2011); German version EN 55016-2-3:2010/FprA2:2011 (fragment 1 + fragment 2)

Fibre optic sensors - Part 3-2: Acoustic sensing and vibration measurement - Distributed sensing