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Professional area and environmental care

Earth-moving machinery - Fire prevention

Fire resistance tests for service installations - Part 15: 1-, 2-, 3- sided ducts

Project

prEN 3639

Aerospace series - Heat-resisting alloy X6NiCrTiMoV26-15 (1.4980) - Softened and cold worked - Wires for forged fasteners - D ≤ 15 mm - 900 MPa ≤ Rm ≤ 1 100 MPa

Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants

Fixed firefighting systems - Components for sprinkler and water spray systems - Part 15: Spray pattern sprinklers with a k-factor of at least K160, extended coverage sprinklers of at least K80 and control mode special application sprinklers

Packaging - Design for recycling for plastic packaging - Part 15: Recyclability evaluation process for plastic packaging - Protocols for EPS packaging

Power transformers - Part 15: Gas-filled-type power transformers (IEC 14/553/CDV:2007)

Project

prEN 62092

Ultrasonics - Hydrophones - Characteristics and calibration in the frequency range from 15 MHz to 40 MHz

Water quality - Sampling - Part 15: Guidance on the preservation and handling of sludge and sediment samples

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