Hydrometer

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HYDROMETER. An instrument for measuring the density of fluids; being immersed in fluids, as in water, brine, beer, brandy, &c., it determines the proportion of their densities, or their specific gravities, and thence their qualities.
     2. By, the Act of Congress of January 12, 1825, 3 Story's' Laws U. S. 1976, the secretary of the treasury is authorized, under the direction of the president of the United States, to adopt and substitute such hydrometer as he may deem best calculated to promote the public interest, in lieu of that now prescribed by law, for the purpose of ascertaining the proof of liquors; and that after such adoption and substitution, the duties imposed by law upon distilled spirits shall be levied, collected and paid, according to the proof ascertained by any hydrometer so substituted and adopted.

References in periodicals archive ?
In addition, the number of measurements of daily water discharge per year at each hydrometric station should be greater than 200 to make sure that the estimation of TSS is statistically convincing.
In the previous year (1963) the hydrometric crew had been led by
Brioschi was able to win the Ministry's trust only by insisting on the practical benefits of hydrometrics for flood protection.
The characteristic aspects of the hydrometric stations.
For the study area, 40 years of rainfall and 38 years of discharge data were provided for three raingauges and hydrometric stations across Madarsoo Watershed.
Hydrometric station of Jokang is located at the exit of the watershed.
The analysis was performed on the upstream part of the Jijia River and the data from the following hydrometric stations were analyzed: Dorohoi (F=238 sq.km, Hmed = 262 m) on the Jijia River and Padureni (F=54.2 sq.km, Hmed = 165 m) on the Buhai River, tributary of Jijia on the right.
The basin drains to the Ameche hydrometric station (1,787 masl), 20 kilometers west of Quereetaro city.
During this part of the year, the backwater's supply of allochthonous nutrients is derived from the influence of flood pulses that increase the hydrometric level of the Parana river (RODRIGUES; BICUDO, 2001).
The data on suspended sediment concentrations during the floods were taken from the measurements at hydrometric posts (Vaikasas 2010).
The less complex Type II methods are based on a 2C model where body mass is divided into FM and FFM, either from hydrometric or densitometric techniques.
The project objective is included in: - objectives of Reducing torrential Statistical data, Directive 2007/60/ phenomena, reducing hydrological and EC, the European rainfall intensity, meteorological Parliament and the reducing pollution forecast; The Council of 23 (water, air, soil) hydrometric October 2007 stations, mayors integrated in Regional Agency approach to Environmental floodrist management in hydro graphic basins; - CE/60/2000 WFD-objectives, the first European directive that promotes a new strategy and policy in water management at European level that ensures sustainable development, harmonization of socio-economic development with the capacity of the aquatic environment; - in Law no.575/2001 approving the National Spatial Plan - Section V Natural risk areas.