International Plant Protection Convention (IPPC) is an international body aiming to prevent the spread and introduction of pests of plants and plant products.
The ISPM 15 standard is awarded by IPPC. It requires wood packaging to be heat treated or fumigated to kill insects or fungus prior to export.
Heat treatment helps to eliminate the excess moisture presence with an objective of drying the wood at 56°C for minimum 30 minutes in wood core. This process is approved by 156 countries all around the globe.
A suitable chemical is introduced in cylinder and vacuum is created of at-least 56mm of mercury. The process "Full Cell or Bethel Process" is used for maximum absorption of the preservative.
The purpose of vacuum is for separating fibers Et cellulose enable preservative to penetrate in-between.