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EN 15502-2-1/FprA1
Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW
FprEN 14212
Ambient air - Standard method for the measurement of the concentration of sulphur dioxide by ultraviolet fluorescence
FprEN 14626
Ambient air - Standard method for the measurement of the concentration of carbon monoxide by non-dispersive infrared spectroscopy
FprEN 14625
Ambient air - Standard method for the measurement of the concentration of ozone by ultraviolet photometry
FprEN 14211
Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
DIN EN 14211
Ambient air - Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence; German version FprEN 14211:2024
EN 15502-2-2
Gas-fired central heating boilers - Part 2-2: Specific standard for type B1 appliances
