NEN EN 1402-3 : 2003

Foreword
1 Scope
2 Normative references
3 Principle
4 Sampling
5 Determination of chemical composition
  5.1 Preparation of test sample
  5.2 Alumina-silica products
  5.3 Basic products
  5.4 Special products
  5.5 Carbon containing products
6 Determination of grain size distribution
  6.1 Principle
  6.2 Apparatus
      6.2.1 Balance
      6.2.2 Sleeves
      6.2.3 Sieving apparatus
      6.2.4 Drying oven
      6.2.5 Soxhlet apparatus
      6.2.6 Electric hot plate or heating mantle
  6.3 Quantity of sample
  6.4 Preparation of test samples
  6.5 Procedure
      6.5.1 Drying and measurement of dry sample mass
      6.5.2 Sieving
  6.6 Expression of results
7 Determination of moisture content
  7.1 Preparation of test sample
  7.2 Quantity of sample
  7.3 Procedure
  7.4 Calculation
8 Determination of workability index
  8.1 General
  8.2 Apparatus
      8.2.1 Sandrammer
      8.2.2 Measuring device
  8.3 Preparation of test-pieces
  8.4 Procedure and calculation
9 test report
Annex A (informative) Summary of tests

Defines the methods for the characterization of unshaped refractory materials as received and for checking the homogeneity of a delivery of a product. It is applicable to castables (dense and insulating), gunning materials and ramming materials, as defined in EN 1402-1.