BS 3680-10D:1986

National foreword
Committees responsible
Method
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Units of measurement
5. Properties of sediment
6. Sampling
7. Concentration
8. Particle size analysis
9. Determination of relative density
10. Determination of particle size distribution
     characteristics
11. Data processing
Annexes
A. Determination of the concentration of suspended
     sediment by the evaporation method
B. Determination of the concentration of suspended
     sediment by the filtration method using filter
     paper
C. Determination of the concentration of suspended
     sediment by the filtration method using Gooch
     fritted glass crucibles
D. Determination of the particle size distribution
     of suspended sediment
E. Determination of the particle size distribution
     of bed load and bed material
F. Determination of relative density
G. Determination of particle size distribution
     characteristics
Tables
1. Time after which hydrometer readings are to be taken
    in relation to the temperature of the sample
2. Time taken for particles of diameter greater than
    0,062 mm to fall through a 10 cm column of water
    in various times and at different temperatures
4. Guide to selection of correct tube size
5. Computation of geometric mean diameter and
    arithmetic mean diameter
Figures
1. Definition sketch
2. Example of a histogram for presentation of particle
    size distribution
3. Example of a frequency polygon for presentation
    of particle size distribution
4. Example of a cumulative frequency curve for
    presentation of particle size distribution
5. Hydrometer
6. Particle diameter versus settling velocity
7. Essential features of a mechanical siltometer for
    sediment (0,06 to 0,60 mm)
8. Example of a bottom withdrawal tube
9. Example of an Oden curve (constant depth, variable
    time)
10. Visual accumulation tube
11. Visual accumulation tube mechanisms
12. Calibrated charts for the analysis of sands by the
    visual accumulation tube method using a 1800 mm
    tube
13. Calibration chart for the analysis of sands by the
    visual accumulation tube method using a 1200 mm
    tube
14. Typical curves from a visual accumulation tube
    analysis using a 1200 mm tube
15. Typical curves from a visual accumulation tube
    analysis using a 1200 mm tube
16. Determination of percentile points and geometric
    standard deviation

Detailed methods of analysis are set out in six annexes.