concentration value vs density value

Both "concentration value" and "density value" are correct, but they are used in different contexts. "Concentration value" is used when referring to the amount of a substance in a given volume, while "density value" is used when referring to the mass of a substance per unit volume.

Last updated: March 25, 2024 • 648 views

concentration value

This phrase is correct and commonly used in scientific contexts when referring to the amount of a substance in a given volume.

This phrase is used to describe the amount of a substance present in a specific volume. It is commonly used in scientific fields such as chemistry and biology.

Examples:

The concentration value of the solution was 0.5 mol/L.
The concentration value of the gas was measured in parts per million (ppm).
The concentration value of the drug in the blood was carefully monitored.

Show examples from the web [+]

Also, the background correction shall be applied directly to the instantaneous concentration value.
Also, the background correction shall be applied directly to the instantaneous concentration value.
Also, the background correction must be applied directly to the instantaneous concentration value.
With respect to drift verification in paragraph 7.8.4, the corrected concentration value shall be calculated as follows:
For butter samples, take the fat content of butter into account and calculate a corrected concentration value, Cbutter (kg/t of butter)
'limit of detection' means the output signal or concentration value above which it can be affirmed, with a stated level of confidence that a sample is different from a blank sample containing no determinand of interest;
Also, the background correction shall be applied directly to the instantaneous concentration value.
The concentration value shall be determined to calibration gas tolerances by chromatographic analysis of total hydrocarbons plus impurities or by dynamic blending.
The concentration value shall be determined to calibration gas tolerances by chromatographic analysis of total hydrocarbons plus impurities or by dynamic blending.
Regarding the Annex, for PBBs and PBDEs, the maximum concentration value shall be < 0,1 %.
For the purposes of this Directive, no more than the maximum concentration value by weight in homogeneous materials as specified in Annex II shall be tolerated.
The concentration value shall be determined to calibration gas tolerances by chromatographic analysis of total hydrocarbons plus impurities or by dynamic blending.
The 'permitted' maximum concentration value for drinking water (0.05 mg per litre) cannot be regarded as 'low', and is based on a WHO standard which has been unchanged since 1958.
This adaptation must not have the effect of directly or indirectly modifying the application of the actual concentration value fixed in Article 2 (2).
Will it consider whether a new specific concentration value should be introduced for hexavalent chromium (Cr(VI)) in drinking water?
For instance, among the different pollutants, the directive establishes that a concentration value of 50 micrograms per cubic meter (µg/m 3) for particulate (PM 10) can be exceeded for a maximum of 35 times a year for an average period of 24 hours.
Does the Commission intend to take steps to review the maximum concentration value for chromium in water?
The calculation of MPE is restricted to the maximum concentration value at which at least one of the two curves still exhibits a response value of at least 10 %.
'If drift correction is applied in accordance with point 2.7.4, the corrected concentration value shall be calculated in accordance with paragraph 8.6.1 of Annex 4 to UNECE Regulation No 49.';
A maximum concentration value up to 0,1 % by weight and per homogeneous material, for lead, hexavalent chromium and mercury and up to 0,01 % by weight per homogeneous material for cadmium shall be tolerated.

Alternatives:

concentration level
concentration measurement
concentration amount
concentration quantity
concentration parameter

density value

This phrase is correct and commonly used in scientific contexts when referring to the mass of a substance per unit volume.

This phrase is used to describe the mass of a substance per unit volume. It is commonly used in physics, chemistry, and engineering.

Examples:

The density value of the material was 2.7 g/cm^3.
The density value of the liquid was measured in kilograms per liter (kg/L).
The density value of the gas was calculated using the ideal gas law.

Show examples from the web [+]

The central station e.i.r.p. spectral density value given in the table is considered suitable for conventional 90 degrees sectorial antennas.
For frequencies up to 100 kHz, peak current density values can be obtained by multiplying the rms value by (2)1 2.
In cases for which actual density values are not available, a standard density factor for the relevant fuel type shall be applied once assessed by the verifier.
In cases for which actual density values are not available, a standard density factor of 0,8 kg/litre shall be applied upon approval by the competent authority.
For frequencies up to 100 kHz, peak current density values can be obtained by multiplying the rms value by (2)
The following table provides examples of a number of density values, expressed in MJ/Kg.
If the amount of fuel uplift or the amount of fuel remaining in the tanks is determined in units of volume (litres or m3), the aircraft operator shall convert this amount from volume to mass by using actual density values.
Where the amount of fuel uplift or the amount of fuel remaining in the tanks is determined in units of volume, expressed in litres, the aircraft operator shall convert that amount from volume to mass by using actual density values.
"total radiated power spectral density" means the average of the mean power spectral density values measured over a sphere around the measurement scenario with a resolution of at least 15 degree.
Using the software package print out the optical density (OD) values, and the percentage inhibition (PI) for test and control sera based on the mean value recorded in the antigen control wells.
a constant power spectral density (PSD) value of 0,04 g2/Hz over a frequency interval of 15 to 1000 Hz; and
a. A constant power spectral density (PSD) value of 0,04 g2/Hz over a frequency interval of 15 to 1000 Hz; and
EN ISO 6976:2005 Natural gas - Calculation of calorific values, density, relative density, and Wobbe index from composition,
DIN 51857:1997 Gaseous fuels and other gases - Calculation of calorific value, density, relative density and Wobbe index of pure gases and gas mixtures,
a constant power spectral density (PSD) value of 0,04 g2/Hz over a frequency interval of 15 to 1000 Hz; and b. the PSD attenuates with frequency from 0,04 g2/Hz to 0,01 g2/Hz over a frequency interval from 1000 to 2000 Hz;
The induced current density can then be compared with the appropriate exposure limit value.
Raw exhaust gas u values and component densities
Spatial maximum power densities averaged over 1 cm2 should not exceed 20 times the value of 50 W/m2.
Density cannot be zero, please enter a valid value.
The mean of the optical density readings from this control row represent the 0 % inhibition value.

Alternatives:

density level
density measurement
density amount
density quantity
density parameter

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concentration value vs density value