BS EN 13284-1:2002 – Stationary source emissions — Determination of low range mass concentration of dust — Part 1: Manual gravimetric method
1 Scope
This European Standard specifies a reference method for the measurement of low dust concentration in ducted 3 standard conditions. This method has been validated with
gaseous streams in the concentrations below 50 mg/m
3 on an average half hour sampling time.
special emphasis around 5 mg/m
This European Standard is primarily developed and validated for gaseous streams emitted by waste incinerators.
More generally, it may be applied to gases emitted from stationary sources, and to higher concentrations.
If the gases contain unstable, reactive or semi-volatile substances, the measurement depend on the sampling and filter treatment conditions.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
ISO 3966:1977, Measurement of fluid flow in closed conducts – Velocity area method using Pitot static tubes.
ISO 5725-2, Accuracy (trueness and precision) of measurement methods and result – Part 2: Basis
method for the determination of repeatability and reproducibility of a standard measurement method.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
dust
particles, of any shape, structure or density, dispersed in the gas phase at the sampling point conditions which may be collected by filtration under specified conditions after representative sampling of the gas to be analysed, and which remain upstream of the filter and on the filter after drying under specified conditions
3.2
filtration temperature
temperature of the sampled gas immediately downstream of the filter
3.3
“in-stack” filtration
filtration in the duct with the filter in its filter holder placed immediately downstream of the sampling nozzle
3.4
“out-stack” filtration
filtration outside of the duct with the filter in its heated filter holder placed downstream of the sampling nozzle and the suction tube (sampling probe)
3.5
isokinetic sampling
sampling at a flow rate such that the velocity v N and direction of the gas entering the sampling nozzle are the same as the velocity v a and direction of the gas in the duct at the sampling point (see Figure 1)
BS EN 13284-1:2002 – Stationary source emissions — Determination of low range mass concentration of dust — Part 1: Manual gravimetric method