free website hit counter Hydrometer Method Accessories

Hydrometer Method Accessories

As silt and clay particles that are finer than sieves No. 200 Determined by sedimentation. The densitometer is used in order to collect the required data during the sedimentation. Hydrometer test is based on Stokes' law, where related in the diameter of a singular spherical object in the time required to fall within a set distance in a given viscosity of liquids.

Hydrometer test is based on the principle that Larger particles (and therefore heavier) than finer particles (and therefore lighter) of soil in distilled water will faster fall down. The experimental method is approximate because many small particles are not spherical but also the soil often with sheet shape therefore in hydrometer test, used an orb (sphere) with the Equivalent diameter to determine the size of particles, while the particle size distribution test puts criterion of square mesh size of the sieve. Hydrometer tests are based on soil and seed sedimentation in the water, when the soil is well stirred, seeds suspended in terms of shape, size and weight are sedimentation with different speed. For simplicity, it is assumed that all are spherical grains of soil and sedimentation velocity can be expressed according to Stokes' law. In the lab, testing hydrometric in a sedimentation cylinder with 40 grams samples of soil that takes place on the grill and dry which was rejected of sieves No: 200, and mix in scaled cylinder to the intended volume, usually Sodium Hexa Meta Phosphate used as scattering material, mix by stirrer, mixed and by adding distilled water, its volume will increase to 1000cc. A hydrometer, which used in the hydrometric tests must obtain following specifications.

  1. We need to see the hydrometer in a solution prepared using sodium hexa meta phosphate in what grade will take place. Hydrometer because these hydrometers are designed to distilled water so it is necessary to understand if the hydrometer is placed in solutions we have to know (find) in which degree is the zero of the indicator.
  2. Another point is the temperature of the mixture. The hydrometer is calibrated at 20 ° C and the temperature of the mixture is important to us, after obtaining the given numbers of the tables. Correction factors are obtained for each reading and then we fix the numbers, to give accurate results acceptable to relevant experts.
Standards : ASTM D422; BS 1377; AASHTO T88

  • Hydrometer_11
  • Hydrometer_Measuring_Cylinder_11
  • Hydrometer_Mixer_11

Hydrometric testing equipment

Order
Code

Description

Approx Weight
gr
Dimension
mm
Technical
Specifications
Equipment required
for testing

SMSO-2880

Electrical Mixer

5000

15×30×60

10000 RPM 1

SMSO-2805

Measurement Cylinder

530

Ø11×45

1000 cc
ID: 60 mm
6

SMSO-2810

Hydrometer

95

Ø3.5×27

H151 1

SMSO-2820

Hydrometer

95

Ø3.5×27

H152 1

SMGE-8210

Glass Thermometer

35

Ø1×30

100 °c 1

SMGE-6520

Stopwatch

100

11×8×2


1

SMSO-2830

Sodium
Hexa Meta Phosphate


500 gr
1
ADD: No. 24, 1st Floor,
         PARS SAN'AT Commerial Complex
         FAT'H Highway, TEHRAN, IRAN
TEL:  +98-21-6661 9173 (for FAX press 6)
CEO CELLPHONE: +98-912-245 5845
iso certified 0    standard