Ash in wood, pulp, paper and paperboard: combustion at 525°C, Test Method T 211 om-22
This method for determination of ash can be applied to all types and grades of wood pulp paper, and paper products. For the determination of ash by combustion at 900°C, see TAPPI T 413 “Ash in Wood, Pulp, Paper and Paperboard: Combustion at 900°C.”