IS 2720 (PART IV) Specification :
This is for mechanical analysis and also other laboratory
applications for stirring Speed approximately 4000 R.P.M. under load. A
dispersion cup is supported on a rest on the stand of the stirrer and has a
removable baffle. For operation on 230V A.C. supplied with dispersion
cup or baffle cup.
IS 2720 (PART IV) AND BS 1377:2. Specification
This is for the determination of the sub sieve particle distribution in a soil
sample by mechanical analysis. An analysis of this kind expresses
quantity the proportions by weight of the various sizes of particles present
in the soil. It is recommended as a standard procedure to use
dispersion agent to avoid flocculation.
The apparatus consists of a sliding panel which moves up and down by
means of a screw allowing Anderson pipette fixed to it to be raised or
lowered vertically. A sedimentation tube is held by a laboratory clamp
provided on the stand below the pipette. The depth of immersion is
measured by a scale graduated in mm at the side of the sliding panel.
Supplied complete with Anderson pipette 10ml. At the side capacity made
from glass, and a sedimentation tube also of glass of 500ml capacity and
50nos.
ASTM D 422 AASHTO T 88, BS 1377-2. Specification:
Particle size analysis of soils:
Hydrometer method
This equipment is used to determine the quantitative size
distribution of very fine particle in soils such as clay and silt.
The complete set comprises:
Sedimentation Cylinder, 1000 ml capacity (6 pieces)
with rubber bungs.
Soil Hydrometer, 151H, range 0.995 to 1.038 g/ml
with div. 0.001
Glass Tank, dimensions: 600x300x380 mm
Heater complete with thermostat, circulation unit. 230V Single Phase 50Hz 1000W
Glass Thermometer, range -10 to 50o C., Sub-div. 0.5o C.
IS 2720 (PART-VI),BS 1377-2 Specification
Used for grain size analysis of soils where more than 10% of the material will pass
through 75 microns B.S. sieve. Manufactured from clear transparent glass
having uniform clarity throughout the upper end on which density scale is engraved.
The scale range is 0.995 to 1.030 density (gms./cc) at 270C smallest division
on the scale is 0.0005.
Note: Hydrometer for other liquids also available.
ASTM D 2419, AASHTO T 176 Specification:
Used to determine the relevant proportions of clay-like or Plastic fines and
dust in granular soils & fine aggregate Consists of:
Acrylic graduated cylinder (4 nos.)
Rubber stopper for cylinder (4 nos.)
Graduated Steel rule 450 mm
Funnel 100 mm plastic
Aspirator bottle 5 lts plastic with rubber cock
Stand for the aspirator bottle with siphon assembly
Irrgation tube with stop pinch cock & weighted foot assembly
EN 933-9; NF P94-068; UNE 83 180; UNI 8520-15
The test set is used for determining the methylene blue value of 0/2
mm/ fraction in fine aggregates.
A Methylene Blue Test Set, 210-240 V 50-60 HZ
B 1 Filter Paper For Methylene Blue Test ø:125 mm, 100 Pcs./Pack Set consists of
High speed agitator motor, 400/600 r.p.m.
Stirring propeller, ø70 mm 4 flanks
Glass burette, 50 ml x 0.1 ml
Burette holder and stand
Filter paper, 1 pack (100 pcs.), 125 mm dia, 95 g/m2,0.20 mm thickness
Conventionally particle size distribution analysis is carried out using pipette and
hydrometer methods. Whereas in hydrometer method it is possible to determine particle
sizes in the range 75microns, the method involves computation and it is time consuming.
The pipette method can be used for determining only the percentage of specific sizes
less than 0.02, 0.006 and 0.002mm as a percentage of total soil sample.
The plummet balance method to determine sub sieve particle size for the entire range is
very rapid and only manipulation of height of the balance, so that plummet sinks to the right
depth is required.
The percentage of soil in suspension is directly indicated by a pointer over a
graduated scale.
A vertical rod is mounted on a sturdy base having leveling screws.
A pointer with steel pivots turns is jewel bearing an moves over a graduated scale. Scale
graduations are market 0-100% x 2%