Amendment to IEC 335-2-40 (Edition 3) - Part 2: Particular requirements for electrical heat pumps, air conditioners and dehumidifiers containing flammable refrigerants

All-or-nothing electrical relays - Tests and Measurements - Part 7-53: Slow decrease and increase of supply voltage (IEC 94/565/CD:2021); Text in German and English

Materials for printed boards and other interconnecting structures - Part 2-53: Reinforced base materials clad and unclad - PTFE unfilled laminate sheets of defined flammability (vertical burning test), copper-clad

Coffee and coffee products - Determination of acrylamide - Methods using HPLC-MS/MS and GC-MS after derivatization (ISO/DIS 18862:2024); German and English version prEN ISO 18862:2024

Security and resilience - Vehicle security barriers - Part 2: Application (ISO 22343-2:2023); Text in German and English