Peaks limits

Excursion limit A time-weighted average of pollutant exposure over a length of time specified by OSHA that cannot be exceeded during the working day. See Peak limit. 

Peak limit A pollutant or noise level that exceeds the ceiling exposure limit, but is allowed for a specific limited time during the work shift. 

Absolute fault limits for narrowbands established to monitor frequencies above running speed can be ratioed using the 0.42 ips-peak limit established for the true running speed. For example, the absolute fault limit for a narrowband created to monitor the bladepassing frequency of fan with 10 blades would be set at 0.042 or 0.42/10. 

From a quantitative perspective, each peak is defined by two parameters, i.e. the position of its baseline and the retention time boundaries, with those derived by the computer system being shown in Figure 3.27. It is not the intention of this present author to discuss how these have been determined but simply to point out that their positions may have a significant effect on the accuracy and precision of any quantitative measurements, especially, as in Figure 3.27, when the baseline is not horizontal and the signals from each of the components are not fully resolved. It is usual for the software to allow the analyst to override the parameters chosen by the computer to provide what they consider to be more appropriate peak limits and/or baseline positions. 

The important errors were produced by the drifts of base line and by the improper peak limits and base line settings. For example, the presence of a low-molar-mass tail in a polystyrene sample inflicted an error of 800% in its value. In some cases, the low molecular tail was overlapped with the system peaks, while in other laboratories the software cut-off the low-molar-mass tail of chromatogram. It was likely considered just the base line perturbation by the computing system. 

Peak Limit (5 min maximum duration, 8 times per shift) 40 ... 

Peak Limit (30 min maximum duration, 4 times per shift) 20 ppm ... 

MAK Spitzenbegrenzung (Peak Limit) (German Research Association, 2007) constitutes the maximum average concentration to which workers can be exposed for a period up to 30 min with no more than two exposure periods per work shift total exposure may not exceed the 8-h MAK. 

Australia 5 ppm, peak limitation, with a skin notation. 

The equation for a point in the region 150 kHz to 500 kHz (average) for CISPR 22 (conducted) Class B, quasi-peak limits is... 

The quasi-peak limit (which is defined to be 10 dB higher in this region) is automatically 60.25 dBfiV. 

Analyzes peak area (AH), peak limits, onset temperature, and peak maximum of any peak. 

C. They also observed multiple peak limit cycles in gas-phase concentrations in the presence of hydrocarbon impurities. Oscillations have been... 

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