CEN/TR 15310-3:2006

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles of sub-sampling in the field
5 Apparatus
6 Sample preparation
   6.1 Preparation for granular materials
   6.2 Preparation for liquids, sludges and paste like
        substances
7 Preparing a mixed sample
   7.1 Mixing granular materials
   7.2 Mixing of liquid and sludges
   7.3 Mixing of paste like materials
8 Generic sub-sampling of mobile and viscous liquids
   8.1 General
   8.2 Single sample method
   8.3 Multiple sample method
9 Generic sub-sampling of liquid and solids rendered mobile
   by heat
   9.1 General
   9.2 Single sample method
   9.3 Multiple sample method
10 Generic sub-sampling of sludges
   10.1 Liquids
   10.2 Cakes
   10.3 Gelatinous sludges
11 Generic sub-sampling of paste like substances
   11.1 General
   11.2 Single sample method
   11.3 Multiple sample method
12 Generic sub-sampling of powders, granules and small crystals
   12.1 General
   12.2 Aggregate reduction
   12.3 Manual and mechanical sub-sampling procedures
13 Sub-sampling coarse solids and large pieces
14 Incorporation in the Sampling Plan
15 Undertake field sub-sampling procedures
Annex A Examples of equipment for sub-sampling
   A.1 Riffle box
   A.2 Rotary sample divider
   A.3 Tyler divider
   A.4 Sheet metal cross
Bibliography

This Technical Report describes procedures for reducing the overall size of the waste materials in the field to aid practical transportation of a sample to the laboratory. NOTE 1This Technical Report provides a shop shelf of example sampling techniques that can be selected to meet a wide range of sampling situations. For a specific situation one of the presented procedures may be appropriate.NOTE 2The procedures listed in this Technical Report reflect current best practice, but these are not exhaustive and other procedures may be equally relevant.