BS ISO 15117-1:2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Notation
5 Sampling and sample preparation
  5.1 Sampling
  5.2 Sample preparation
      5.2.1 General
      5.2.2 Sample top size
      5.2.3 Sample division
      5.2.4 Moisture content
6 Determination of yield locus
  6.1 Apparatus
  6.2 Instantaneous yield locus
      6.2.1 General
      6.2.2 Preconsolidation of the sample
      6.2.3 Shear consolidation
      6.2.4 Shearing of the sample
      6.2.5 Determination of the complete family of
            instantaneous yield loci
  6.3 Other yield loci
      6.3.1 High-pressure yield locus
      6.3.2 Time yield locus
      6.3.3 Temperature yield locus
      6.3.4 Vibration yield locus
  6.4 Reporting and presentation of results
      6.4.1 General
      6.4.2 Prorating procedure
      6.4.3 Determination of the instantaneous flow
            function
  6.5 Acceptance of results and precision of the
      determination
7 Determination of wall yield locus
  7.1 Principle
  7.2 Apparatus
  7.3 Sample
  7.4 Procedure
  7.5 Calculations
  7.6 Determination of wall friction angle (Phi)
  7.7 Precision of determination
8 Determination of bulk density/compressibility
  8.1 General
  8.2 Apparatus
  8.3 Sample
  8.4 Procedure
  8.5 Calculations
  8.6 Presentation of results
  8.7 Precision of determination
Annex A (informative) Bin design philosophy

Describes methods for the measurement of the flow properties of coal, primarily for the design of bins and chutes. Also provides some guidance on the presentation of these data for analysis and design. Consists of a bulk density test and a yield locus test giving information on material flow properties. Also describes a further test, called the wall yield locus, which measures the friction between coal and bin wall material.

This part of ISO 15117 sets out methods for the measurement of the flow properties of coal, primarily for the design of bins and chutes. It also provides some guidance on the presentation of these data for analysis and design.

This part of ISO 15117 consists of a bulk density test and a yield locus test giving information on material flow properties. It also describes a further test, called the wall yield locus, which measures the friction between coal and bin wall material.

Although this part of ISO 15117 is nominally for coal, the principles and apparatus may be used for coke and other semi-cohesive particulate materials where a knowledge of flow properties is required.

NOTE Some discussion of the relevance of coal flow properties to bin design philosophy is provided in Annex A.