Trade mark number: 
The AGRISILICA word mark provides certification to high silica ash that meets the standards for production and processing as defined by Mortimer Technology Holdings Ltd.

For a rice hull ash to quality to use the certification mark AGRISILICA it must meet minimum standards for two parameters:

  • The Residual Loss On Ignition (LOI) of the AGRISILICA product must measure less than 4% by weight.
  • The silica which makes up the majority of the ash material (usually at least 90%) must be least 98% in an amorphous state.
Certification rules: 
1042352.pdf PDF in PDF format [278.05 KB]