Laboratory Test Sheet
Particle Size Distribution (Pipette Sedimentation)
BS 1377 : Part 2 : 1990
BS 1377 : Part 2 : 1990
Particle Size Distribution (Pipette Sedimentation)
Location
Job ref.
Borehole/Pit no.
Soil Description
Type 1 General Granular Materials
Type 2 General Cohesive Materials
Type 3 General Chalk Materials
Type 4 - Landscape Fill
Type 5 - Top Soil
Type 6 - Selected Granular Fill
Type 7 - Selected Cohesive Fill
Type 8 - Miscellaneous Materials
Type 9 - Stabilized Materials
Others
Sample No.
Aggregates
Clays
Rocks
Silts
Peats
Soils
Depth
Test method
BS1377: Part 2:
1990: 9.7
Date
Method of preparation
CALIBRATION
PRETREATMENT*
Pipette No
Pretreated with
Volume of Pipette
mL
Initial dry mass of sample mo g
SAMPLE DATA
Dry mass after pretreatment mg
Dry Mass of Soil
Pretreatment loss mo-m
g
Particle Density
Mg/m3
%
*Measured/Assumed
K
=
(W1 etc - Wr) * 100
Viscosity of Water...C*
mPa.s
m
D = 0.005531 * sqrt((n*Hr)/(ps-1)t)
mm*
At 25deg C, D = 0.05221*sqrt((ps-1)t)
TEST DATA
Pipette sample ref.
Dispersant only
Date
Time
Elapsed Time
min
Temperature
degC
Bottle No
g
Mass of Bottle + Solids
g
Mass of Bottle
g
Mass of Solids in Vp1 etc g
mr
Mass of Solids 500mL W1 etc g
wr
Mass of Soil in 500mL W1 etc, - Wr
Particle Diameter
mm
Percentage finer than D
%
* Delete as necessary
Operator
Checked
Approved