critical level

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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 ?
She added: "Today we have between four and eight days supply but blood supplies were at critical levels in November.
This in turn will lead to suspension of work in the days when the river reaches critical levels, Minister Papazov told Bulgarian National Radio.
Both Angat and La Mesa dams have not reached their critical levels, but they could have reached spill levels had Egay not left the Philippines, Ramos said.
A NORTH Wales council that reached critical levels of grit has been given a 700 tonne delivery.
Make certain that residence times are not excessive and melt temperatures are below critical levels.
28 /PRNewswire-USNewswire/ -- With blood supplies at critical levels, the American Red Cross Southeastern Michigan Blood Services Region asks all eligible blood donors to give the gift of life as they prepare to ring in the New Year.
The imbalance between gas production and demand has reached critical levels.
In Liverpool we know how the Lib Dem's have reduced cleansing staff, cut back traffic schemes funding, cut back security staff, cut maintenance funds for repairs to critical levels and at the same time just given 20 of themselves another pounds 2,000 pay increase.
freshwater supplies may also reach critical levels in the coming generation.
Another year with acreage near current levels would push stocks down to critical levels, even if national average yields recover to a level near 40 bushels per acre.
Duncan McClure Fisher, of Warranty Direct, said: 'The problem is reaching critical levels and something needs to be done.