critical level


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Related to critical level: Critical region, critical point, Critical value

critical level

The setting on a backflow preventer or vacuum breaker which determines its minimum permitted elevation above the flood-level rim of the fixture or receptacle served.
References in periodicals archive ?
2001), where Y is yield, ni is the soil attribute for which the critical level is determined and Q is defined as the ratio between Y and ni (Q = Y/ni ).
When readers reach a critical level of proficiency in decoding and vocabulary knowledge, these processes become automatic and reading becomes "fluent.
But it is during the critical level - the changeover between the high and low phases - that we are at our worst and feel unco-ordinated.
the apartment owner may make noise with impunity up to some critical level, and, if the apartment owner makes more than the critical level of noise, the single family may obtain an order of the court directing the apartment owner to reduce the noise down to the critical level.
Environmental obligations have reached a critical level in the United States.
The Marikina government on Saturday afternoon raised alert level four or critical level over the Marikina River amid heavy rains caused by the southwest monsoon.
The Authority is looking for a supplier to bring together the mapping and modelling of critical loads (including the further development and application of biodiversity-based critical loads), critical levels, pollutant deposition and concentrations, and to generate critical load and critical level exceedance data.
The Mayor of the southeastern Bulgarian town of Elhovo, Petar Kirov, has urged locals to prepare for evacuation as the water level of the Tundzha River nears the critical level.
The pressure dropped below the critical level in main gas pipeline.
Wales is on Critical Level I alert after four bombs ripped through the London Underground and destroyed a bus last Thursday.
In recent years, the analysis of massive amounts of data has reached a critical level for pharmaceutical and biotech companies.
Trending graphs are displayed for all parameters, and built-in "pre-control" alarms warn before a deviation reaches a critical level.

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