Test method to measure the efficiency of air filtration media against spherical nanomaterials - Part 1: Size range from 20 nm to 500 nm (ISO 21083-1:2018)— 66 стр.
Air filters for general ventilation - Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM) (ISO 16890-1:2016); German version EN ISO 16890-1:2016— 37 стр.
Air filters for general ventilation - Part 2: Measurement of fractional efficiency and air flow resistance (ISO 16890-2:2016); German version EN ISO 16890-2:2016— 78 стр.
Air filters for general ventilation - Part 4: Conditioning method to determine the minimum fractional test efficiency (ISO 16890-4:2016); German version EN ISO 16890-4:2016— 20 стр.
Air filters for general ventilation - Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured (ISO 16890-3:2016); German version EN ISO 16890-3:2016— 31 стр.
Statistics on meteorological data for calculating the energy requirement for heating and air conditioning equipment in Germany - Correlation between air temperatur t and content of water vapor <chi>— 144 стр.
Statistics on meteorological data for calculating the energy requirement for heating and air conditioning equipment, Corrigenda to DIN 4710:2003-01— 5 стр.
