Over 45mm : 10.0% Max 45mm 19mm : 50.0% Min 19mm-5mm : 35.0% Max 5mm-3mm : 3.0% Max Under 3mm: 2.0% Max Bark Shall and rot shall not exceed 1.5% Chips Shall be free from char and other foreign materials such as sand, stones, plastic, and coal etc. The moisture content of the wood chips approximately 35% - 38%
