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This document specifies the procedures for establishing traceability to the SI for the quantitative output of elemental mercury generators that are employed in regulatory applications for emission monitoring or testing.
This document provides methods for:
—Calibrating the output of a candidate generator by comparison with a reference standard;
— Calculating the mercury concentration and the associated uncertainty of the calibrated mercury concentration generated with the candidate generator in relation to the known uncertainty of the reference standard and the measurement results
This document specifies a measurement method for the determination of the output of candidate generators used to calibrate mercury analysers for the determination of the concentration of mercury in emission sources and ambient air.
The method is applicable for different types of mercury gas generators:
c Diffusion gas generators, working according to ISO 6145-8 [1];
— Bell-jar generator, working according to ISO 6145-9 [2];
— Saturation gas generators, working according to ISO 6145-9 [2];
— Permeation gas generators, working according to ISO 6145-10 [3];
— Mercury amount fractions in cylinders, prepared according to ISO 6142-1 [4];
— Continuous injection gas generators, working according to ISO 6145-4 [5].
— Mass of mercury on sorbent tubes.
The concentrations are expressed in ng/m3 or μg/m3 (at 0 °C and 101,325 kPa).
Reģistrācijas numurs (WIID)
80073
Darbības sfēra
This document specifies the procedures for establishing traceability to the SI for the quantitative output of elemental mercury generators that are employed in regulatory applications for emission monitoring or testing.
This document provides methods for:
—Calibrating the output of a candidate generator by comparison with a reference standard;
— Calculating the mercury concentration and the associated uncertainty of the calibrated mercury concentration generated with the candidate generator in relation to the known uncertainty of the reference standard and the measurement results
This document specifies a measurement method for the determination of the output of candidate generators used to calibrate mercury analysers for the determination of the concentration of mercury in emission sources and ambient air.
The method is applicable for different types of mercury gas generators:
c Diffusion gas generators, working according to ISO 6145-8 [1];
— Bell-jar generator, working according to ISO 6145-9 [2];
— Saturation gas generators, working according to ISO 6145-9 [2];
— Permeation gas generators, working according to ISO 6145-10 [3];
— Mercury amount fractions in cylinders, prepared according to ISO 6142-1 [4];
— Continuous injection gas generators, working according to ISO 6145-4 [5].
— Mass of mercury on sorbent tubes.
The concentrations are expressed in ng/m3 or μg/m3 (at 0 °C and 101,325 kPa).
