isokinetic sampling

isokinetic sampling

[‚ī·sə·ki¦ned·ik ′sam·pliŋ]
(engineering)
Any technique for collecting airborne particulate matter in which the collector is so designed that the airstream entering it has a velocity equal to that of the air passing around and outside the collector.
References in periodicals archive ?
Isokinetic sampling system and metal powders-1pc; Sample preparation system consists of thermobalance, hob and ionizer - 1 piece; Gas sampling pump - 2 pieces.
It consisted of an isokinetic sampling head attached to a 37 mm (1.
In an isokinetic sampling, the concentration and particle size distribution of particles are misrepresented and the samplers may oversample or undersample large particles depending on the actual air velocity surrounding the sampler (Jerez et al.
The Thai Nguyen province selected eleven (11) of their most qualified technicians to attend the ESS training seminar to further focus their Apex Instruments isokinetic sampling skills.
The AirPort MD8 sampler takes advantage of isokinetic sampling favorable for obtaining an accurate measurement of both small and large particles.
Achieving or approaching isokinetic sampling conditions is particularly important in an area in which air sampling is done under dynamic conditions.
44 cm) were selected for isokinetic sampling at an inlet velocity of approximately 11 m/s.
The exhaust flow was sampled through a fixed, multipoint, isokinetic sampling rake in the exhaust duct immediately downstream of the gas turbine through a heated sampling hose.
Smoke obscuration measurements are made in the exhaust duct by a helium-neon laser with silicon photodiodes as main beam and reference detectors, and appropriate electronics to derive the extinction coefficient and set also provided in the exhaust duct for isokinetic sampling probes for determining concentrations of gaseous combustion products, typically the carbon oxides.
of harmful substances (pollutants) emitted into the atmosphere from facilities and activities with stationary emission sources is necessary to purchase a mobile automatic stations for measurements of emissions air equipment isokinetic sampling emission portable analyzer instrumentation to measure emissions of harmful substances into the air and portable scales.
Standard isokinetic sampling nozzles were used in this study.