Laboratory Test Sheet
Particle Size Distribution (Hydrometer Sedimentation)
BS 1377 : Part 2 : 1990
BS 1377 : Part 2 : 1990
Particle Size Distribution (Hydrometer Sedimentation)
Location
Job ref.
Borehole/Pit no.
Soil des
cription
cription
Sample No.
Depth m
Test method
BS1377: Part 2:
1990: 9.6
Date
Method of preparation
CALIBRATION AND SAMPLE DATA
PRETREATMENT*
Hydrometer no.
Pretreated with
Meniscus correction
m
Initial dry mass of sample mo
g
Reading in dispersant Ro
Dry mass after pretreatment m
g
Calibration equation hr = .....- .....Rh
Pretreatment loss mo-m
g
Dry mass of soil
m
g
%
Particle Density
measured/assu
med *
ps
med* ps
Mg/m3
D = 0.005531*sqrt(n*Hr)/(ps-1)t
mm
Viscosity of water.
.....C *
....C*
mPa.s
K
=
((100*ps)/(m*(ps-1))/Rd%
TEST DATA
Date
Time
Elapsed Time t min
Temp. T deg C
Reading
Rn'
Rn'+Cm = Rh
Effective depth
Hr mm
Particle diameter D mm
Rh'-Ro' =Rd
Percentage finer than
D
K%
*Delete as appropriate
Operator
Checked
Approved
Form 2Q