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NY/T 1121.1-2006 Soil Testing Part 4: Determination of Soil Bulk Density
Time of Update: 2022-08-19
337 NotesFor the determination of bulk density, the ring knife filled with soil samples can also be directly dried in a constant temperature drying oven at 105°C ± 2°C to a constant weight, and then weighed on a 1% precision balance .
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Determination of Relative Density of Milk, Liquor and Fruit Juice
Time of Update: 2021-09-15
(2) Measure the relative density of milk with a milk thick meter① Take commercially available milk, adjust the temperature at 10-20°C, mix it carefully, pour it into a 250mL dry measuring cylinder, and add to the 3/4 volume of the measuring cylinder .
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Experiment 8 Determination of pore density and area of plant leaves
Time of Update: 2021-01-07
To this end, the objector scale is placed under the microscope, such as the former method to draw a number of micrometers scale on the grid line, to determine that the enlarged micrometer each scale is equivalent to several mm, because the actual length of each small scale of the objector micrometer is known to be 10 m, so the microscope magnification can be obtained.
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Determining the Subunit Structure of Phosphodiesterases Using Gel Filtration and Sucrose Density Gradient Centrifugation
Time of Update: 2020-12-26
This method combines Stokes radii obtained from gel filtrations and sedimentation coefficients derived from density gradient centrifugations to calculate the mass of a protein independently of its shape or hydration.
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Coating process: Determination of coating density
Time of Update: 2020-04-03
Core tip: density: the amount of substance contained in unit volume, expressed in ɡ / ml Rho =m/v Where ρ - density, μ / ml; M - mass, ɡ; V - volume, ml The density of the coating largely depends on t