1. ABNT (1985) NBR 9165: Determination of apparent relative density, true relative and porosity. Brazilian Association of Technical Standards, Rio de Janeiro
2. ABNT (2003) NBR 11941: Wood—basic density determination. Brazilian Association of Technical Standards, Rio de Janeiro
3. ABNT (1984) NBR 8633: Charcoal—determination of calorific value—test method. Brazilian Association of Technical Standards, Rio de Janeiro
4. ASTM (1977) ASTM D 1762-64: Standard method for chemical analyses of wood charcoal. American Society for Testing and Materials, Philadelphia
5. ASTM (2010) D4933–99: Standard guide for moisture conditioning of wood and wood-based materials. American Society for Testing Materials, Philadelphia