IRRI SERVICE LABORATORIES
provides quality and efficient integrated laboratory testing services and expertise
provides quality and efficient integrated laboratory testing services and expertise
Crude ash of rice plant material is determined by gravimetry. An amount of the sample is weighed in a crucible and ignited at high temperature, 490 °C to remove organic matter. The remaining inorganic oxides are weighed as crude ash.
Note: To determine crude ash, the sample weight required is at least 4 g of plant sample.