LABORATORY product testing

- quality control of explosive precursor products and
manufacture of emulsion and bulk explosives for testing

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OVERVIEW

The laboratory is licensed to receive, store and dispose of test samples of prill and emulsion and to manufacture emulsion and bulk explosives for laboratory testing.

 

AVAILABLE TESTS

  1. Measurement of emulsion composition including salt content, water content and fuel+emulsifier content

  2. Emulsion droplet size and crystallization

  3. Manufacture of emulsion up to 3kg (no limit for mine site/manufacturing facility*)

  4. Manufacture of sensitized products up to 1 kg (no limit for mine site/manufacturing facility*)

  5. Viscosity as a function of temperature studies

  6. Gassing as a function of temperature studies

  7. Emulsion stability (temperature cycling and shearing)

  8. Prill/emulsion compatibility

  9. Fuel/emulsion compatibility

  10. Prill Fuel Oil Absorption

  11. Prill total AN content

  12. Prill friability

  13. Prill stability (temperature cycling)

  14. Prill water content

  15. Prill size distribution

  16. ANFO Fuel Content

  17. Water Gel Water Content

  18. Thermal conductivity and thermal stability of products

  19. Density (bulk and in hole)

  20. Nonel stability due to contact with diesel

  21. Physical testing of Nonel resistance to abrasion and bending.

*mine site is responsible for disposal of products

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GASSING TESTS

Samples are mixed in the laboratory and the rate of gassing is measured over a 24 hour period.

Low rates of gassing can lead to problems if holes are stemmed too soon after loading.  Typically products reach their final cup density in 30 – 40 minutes after commencement of the reaction.

These tests on precursor products can be performed at the laboratory, and requires DG shipping to of 200g prill sample and/or 250g emulsion sample.

DIESEL EMULSION COMPATIBILITY TESTING

Samples are mixed in the laboratory and monitored for a
reaction over a 24 hour period.

Certain diesel additives cause the emulsion droplets to
swell, coalescence and collapse. 

This will prevent the explosive product from detonating.

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