Matematikk. Naturvitenskap

ISO/DIS 23033 - Biotechnology -- Analytical methods -- General guidelines for the characterization and testing of cellular therapeutic products
Emner: Biologi. Botanikk. Zoologi
Komité: ISO/TC 276 (Biotechnology)
Opprinnelse:
Sluttdato: 9. jul 2020
Høringsforslag - detaljer
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prEN 17522 - Design and construction of borehole heat exchangers
Emner: Geologi. Meteorologi. Hydrologi
Komité: CEN/TC 451 (Water wells and borehole heat exchangers)
Opprinnelse:
Sluttdato: 23. jul 2020
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This document covers standardization in the field of geological and environmental aspects, design, drilling, construction, completion, operation, monitoring, maintenance, rehabilitation and decommissioning of borehole heat exchangers for uses of geothermal energy. The direct expansion and thermal syphon techniques are excluded from this document