Samphng time

Detention Test This test utihzes a 1- to 4-L beaker or similar vessel. The sample is placed in the container, flocculated by suitable means if required, and allowed to settle. Smah samples for suspended-sohds analysis are withdrawn from a point approximately midway between liquid surface and settled solids interface, taken with sufficient care that settled solids are not resuspended. Samphng times may be at consecutively longer intei vals, such as 5, 10, 20, 40, and 80 min. 

Solution Based on these data, we can extract the following information to build the regression model with indicator variables 7 = 5 batches, J = 2 packages, r - 4, 5 = 1, and n = 6 samphng times for all batches 0, 3, 6, 9,12, and 18 months. The indicator variables are shown in Table 25 and the indicator variables model for this... 

The approach involves computing the average value of the data for each samphng time k ... 

Individual external mass-transfer coefficients, fed (see Table 5.4), were evaluated using Eqs (64 )-(66 ), where [Ti]p., [TIJe, and [TIJr. were taken from model-calculated data and [Tijp, [Tijp, and li i<, were experimentally obtained data under the same conditions and samphng time,... 

Individual mass-transfer coefEcients are determined experimentally for every metal species in the processing time intervals between sampling (ti—t ), (tj—tj), (tf—tj), and so on. Then, for every metal transported, the overall mass-transfer coefficients on the feed side, Kp/p(t), and strip side, 1 e/r(V, the total overall mass-transfer coefEcients of the BAHLM system, were calculated, using Eqs (8), (9), and (47), respectively, for every samphng time interval. Separation factors of two metal species,... 

Hd(Mi/M2)(0> were also calculated separately for every samphng time interval using Eq. (48). 

Among the 120 measures of maximum ground concentrations of SO2, five of them are higher than the EU standards. The maximum concentration of 185 mg/m for a samphng time of 3 h 51 min was recorded at station Si. Other concentrations, derived firom simulations (Fig. 2) and measurements realized in the same period (Table 9) are below the standards and they are between 100 and 150 mg/m in 24 h and between 40 and 60 mg/m for 1 year (Fig. 3). 

Repeatability. For this test, two GCs were supplied by a cylinder of gas with a constant heating value. The test was performed over a seven-day period, to allow for the effects of any instabilities or zero shifting of the instruments to be measured. Since the cyhnder contained a finite volume of gas, the normal samphng time of ten to fifteen minutes would empty the cylinder before the end of seven days. Therefore, the GCs were programmed to sample and analyze once an hour for a total of 170 analyses dirring the seven-day period. 

The concentrations of i° Ag and noni g oysters, cultivated in nearly closed bays, were remarkably lower than in open bays in the same samphng time. This trend was especially clear ° in the Chemobyl-derived " " Ag. In an open bay 2780 [mBq/(kg flesh)] of 110 Ag was detected in late 1986, 710 mBq/kg flesh in the inlet to a nearly closed bay and less than the detection hmit at the end of this bay, in the same sampling time. The concentrations of i Cs in oysters cultivated in the open and nearly closed bays were similar. This has been related to the ionic chemical form of Cs soluble in sea water i, while silver is combined with highly polymeric organic compounds such as proteins or proteincarbohydrates. 

A samphng time [hoitr] = 0.01 P growth rate parameter [.] = 0.02 Y substrate inhibition parameter [.] = 0.48... 

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