1) Moisture Content:

- This provides information about the water present in the sample and calculated by removing the water from the sample and measuring the weight loss as a percentage.

2) Ash Content:

- This provides information about the inorganic or mineral matter present in the sample. It involves igniting the sample at a high temperature and measuring the remaining ash as a percentage of the original weight.

3) Volatile Matter:

- This provides information about the organic compounds that can be volatilized or driven off by heating the sample under specific conditions in the absence of air. It is measured as the weight loss during heating, excluding moisture, and calculated as a percentage.