CR 14061:2000

Foreword
Introduction
1 General
2 Background for choice of method
3 Symbols and abbreviated terms
4 Calculation of the spouting bed apparatus
5 Initial testing
6 Conclusive ringtest
7 Other methods
8 Conclusion
Annex A (informative) Method for the determination of
        dust potential
Annex B (informative) Optical methods for determination
        of fertilizer dust
Bibliography

When handling fertiliser grains, dust is at every moment generated on the surface. The fertiliser thus contains more or less free dust, and has a potential for generating more dust (abrasion dust) when subject to subsequent handling. In all existing gravitational test methods dust will be generated during the testing time, and the two types of dust will be measured simultaneously.