BS ISO 10835:2007
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
11-30-2007
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General considerations for sampling and
sample preparation
4.1 Basic requirements
4.2 Establishing a sampling scheme
4.3 System verification
5 Fundamentals of sampling and sample
preparation
5.1 Minimization of bias
5.1.1 General
5.1.2 Minimization of particle-size
degradation
5.1.3 Extraction of increments
5.1.4 Increment mass
5.2 Overall precision
5.3 Quality variation
5.4 Sampling precision and number of
primary increments
5.4.1 Mass-basis sampling
5.4.2 Time-basis sampling
5.5 Precision of sample preparation and
overall precision
5.5.1 General
5.5.2 Preparation and measurement of
gross sample
5.5.3 Preparation and measurement of
partial samples
5.5.4 Preparation and measurement of
each increment
6 Methods of sampling
6.1 Mass-basis sampling
6.1.1 Mass of increment
6.1.2 Quality variation
6.1.3 Number of primary increments
6.1.4 Sampling interval
6.1.5 Methods of taking increments
6.2 Time-basis sampling
6.2.1 Mass of increment
6.2.2 Quality variation
6.2.3 Number of increments
6.2.4 Sampling interval
6.2.5 Methods of taking increments
6.3 Stratified random sampling within fixed
mass or time intervals
6.3.1 General
6.3.2 Fixed mass intervals
6.3.3 Fixed time intervals
7 Sampling from moving streams
7.1 General
7.2 Safety of operations
7.3 Robustness of sampling installation
7.4 Versatility of sampling system
7.5 Primary samplers
7.5.1 Location
7.5.2 Types of primary sampler
7.5.3 General design criteria for
primary cutters
7.5.4 Cutter aperture of primary sampler
7.5.5 Cutter speed of primary sampler
7.6 Secondary and subsequent samplers
7.7 On-line sample preparation
7.7.1 Arrangement for sample preparation
7.7.2 Crushers
7.7.3 Dividers
7.7.4 Dryers
7.8 Checking precision and bias
7.9 Cleaning and maintenance
7.10 Example of a flowsheet
8 Sampling from stationary situations
9 Stopped-belt reference sampling
10 Sample preparation
10.1 Fundamentals
10.1.1 General
10.1.2 Crushing and grinding
10.1.3 Mixing
10.1.4 Sample division
10.1.5 Mass of divided sample
10.1.6 Split use and multiple use of sample
10.2 Method of constituting partial samples
or a gross sample
10.2.1 General
10.2.2 Method of constitution for
mass-basis sampling
10.2.3 Method of constitution for
time-basis sampling
10.3 Mechanical methods of division
10.3.1 Mechanical increment division
10.3.2 Other mechanical-division methods
10.4 Manual methods of division
10.4.1 Manual increment division
10.4.2 Fractional shoveling
10.4.3 Manual riffle division method
10.5 Preparation of test sample for physical
testing
10.6 Preparation of test sample for moisture
determination
10.7 Preparation of test sample for chemical
analysis
10.7.1 Mass and particle size
10.7.2 Preparation to -250 [mu]m
10.7.3 Final preparation to -160 [mu]m
10.7.4 Distribution of samples for chemical
analysis
10.8 Example of sample-preparation process
11 Packing and marking of sample
Annex A (informative) - Inspection of mechanical
sampling systems
Annex B (normative) - Equation for number of increments
Annex C (normative) - Riffle dividers
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