BS 1377 Part 2 1990          
Particle Size Distribution (Pipette Sedimentation)
Location Job Ref:
BH No.
Soil Description Sample No.
Depth
Test method  BS1377: Part 2:  1990: 9.7 Date
 
Method of preparation                    
   CALIBRATION         PRETREATMENT*        
Pipette No.       Pretreated with        
Volume of pipette     Vp   mL Initial dry mass of sample mo g    
   SAMPLE DATA     Dry mass after pretreatment m g    
Dry mass of soil   g Pretreatment loss mo-m  g    
Particle density     %    
    measured/assumed *   Mg/m3  
K   =   (W1 etc - Wr) * 100
 m
Viscosity of water......C *   mPa.s  
  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.            
Mass of bottle + solids   g      
Mass of bottle   g      
Mass of solids in Vp m1  etc. g   mr  
Mass of solids in 500 mL W1 etc. g   Wr  
Mass of soil in 500 mL W1 etc,-Wr g      
Particle diameter   mm      
Percentage finer than D   %      
*Delete as appropriate  

 
  Operator Checked Approved

                                                                                                                                        Form 2P