1. evaluation of TGA for proximate analysis
Mandla Maphumulo Sustainability RT&D Applied Chemistry & Microbiology 31 July 2017

2. Content Introduction Furnace method How TGA works Findings Questions
Conclusion and Recommendations
Questions
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3. Introduction
Proximate analysis

4. Proximate analysis Introduction Inherent moisture Ash Volatile matter
Fixed carbon

5. Furnace and TGA methods
Inherent moisture, Volatile matter, Ash and Fixed Carbon

6. Furnace method
Sample
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7. How TGA works
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8. Volatile matter and Ash results on dry basis
Findings
Volatile matter and Ash results on dry basis

9. Findings
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10. Continue…
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11. Conclusion and Recommendations
What needs to be done going forward

12. Conclusion and Recommendations
The results show that the TGA and furnace methods are very comparable. The TGA method can therefore be used for proximate analysis.
Although some results show some discrepancies, they are within ISO reproducibility limits and thus acceptable.
TGA needs less human intervention, thus mitigate human error contribution on the accuracy of the analysis and give an analyst time to do other laboratory work.
SANS committee should consider developing a standard for TGA.
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13. QUESTIONS
Thank You
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