PREN 15442 : DRAFT 2009

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Development of a sampling plan
   6.1 Principle
   6.2 Definition of overall objectives
   6.3 Definition of a lot and determining lot size
       6.3.1 General
       6.3.2 Definition of a lot in case sampling from a
             material flow
       6.3.3 Definition of a lot in case of transport by
             a vehicle
       6.3.4 Definition of a lot in case of transport by
             ship
       6.3.5 Definition of a lot in case of sampling from
             a static lot
   6.4 Determination of the sampling procedure
   6.5 Determination of the number of increments
   6.6 Determination of minimum sample size
   6.7 Determination of the minimum increment size
       6.7.1 Determination of minimum increment size for
             material flows
       6.7.2 Determination of the minimum increment size
             for static lots or vehicle
   6.8 Determination of the effective increment and sample
       sizes
       6.8.1 Determination of the effective increment size
       6.8.2 Determination of the effective sample size
   6.9 Selection of distribution of increments over a lot
       6.9.1 Determination of the distribution of the increments
             when sampling from a material flow
       6.9.2 Determination of the distribution of the increments
             when sampling from a vehicle
       6.9.3 Implementation of sampling from a static lot
7 Implementation of the sampling plan
8 Handling and storage of samples
9 Precision
Annex A (normative) - Step-by-step plan for the development
        of a sampling plan
   A.1 Introduction
   A.2 Principle
   A.3 Step-by-step plan
Annex B (informative) - Guideline for a sampling plan
   B.1 Introduction
   B.2 Form for the sampling plan
Annex C (normative) - Sampling equipment and implements
   C.1 Introduction
   C.2 Principle
   C.3 Selection of an apparatus
   C.4 Examples for sampling from a moving conveyor
       or drop flow
   C.5 Sampling frame
   C.6 Sampling scoop
   C.7 Mechanical probe
Annex D (normative) - Determination of minimum sample size
   D.1 Introduction
   D.2 Principle
   D.3 Determination of factors necessary for the minimum
       sample size
       D.3.1 General
       D.3.2 Determination of the nominal top size
       D.3.3 Determination of the shape factor
       D.3.4 Determination of the bulk density
       D.3.5 The distribution factor g
       D.3.6 The factor p
       D.3.7 The coefficient of variation cv
   D.4 Calculation of the minimum sample size
   D.5 Quick determination of minimum sample size
       D.5.1 Quick determination of minimum sample size for
             fluff-type solid recovered fuels
       D.5.2 Quick determination of minimum sample size for
              granular solid recovered fuels
Annex E (normative) - Determination of minimum increment size
        for sampling from material flows
   E.1 Introduction
   E.2 Principle
   E.3 Determination of minimum increment size for mechanical
       sampling from a drop flow
   E.4 Determination of minimum increment size for manual
       sampling from a drop flow
   E.5 Determination of minimum increment size for sampling
       from a conveyor
Annex F (normative) - Determination of minimum increment
        size for sampling from static lots or vehicles
   F.1 Introduction
   F.2 Principle
   F.3 Procedure
Annex G (normative) - Implementation of sampling plan
        from a material flow
   G.1 Introduction
   G.2 Principle
   G.3 Procedure verification of sampling aspects
   G.4 Procedure: Mechanical or manual sampling from the drop
       flow
   G.5 Procedure: Mechanical sampling from a moving conveyor
   G.6 Procedure: Manual sampling from a stationary conveyor
Annex H (normative) - Implementation of the sampling
        plan from a static lot or vehicle
   H.1 Introduction
   H.2 Principle
   H.3 Procedure
   H.4 Implementation of sampling in locations chosen in
       a stratified random way
   H.5 Implementation of sampling in locations chosen in
       a stratified way after rearranging or moving part
       of the lot
Annex I (normative) - Minimum sample size required for analysis
   I.1 Introduction
   I.2 Principle
   I.3 Procedure
Annex J (normative) - Standard sampling plans for
        common situations
   J.1 Introduction
   J.2 Sampling of granular SRF < 25 mm from a moving conveyor
   J.3 Sampling of granular SRF < 25 mm from a static lot
   J.4 Sampling of granular SRF < 25 mm from a vehicle
Annex K (informative) - Additional information about precision
   K.1 Introduction
   K.2 Scope
   K.3 Trueness
   K.4 Repeatability and reproducibility
   K.5 Robustness
Annex L (informative) - Distribution of increments
   L.1 Scope
   L.2 Stratified sampling
   L.3 Stratified random sampling
Bibliography

Explains methods for taking samples of solid recovered fuels for example from production plants, from deliveries or from stock. It also includes manual and mechanical methods.