1. ASTM D 2244–02 (2003) Standard practice for calculation of color tolerances and color differences from instrumentally measured color coordinates. ASTM International, West Conshohocken
2. ASTM D 790–03 (2010) Standard test methods for flexural properties of unreinforced and reinforced plastics and electrical insulating materials 1. ASTM International, West Conshohocken
3. ASTM G154–12a (2012) Standard practice for operating fluorescent ultraviolet (UV) lamp apparatus for exposure of nonmetallic materials. ASTM International, West Conshohocken
4. Butylina S, Hyvärinen M, Kärki T (2012) A study of surface changes of wood-polypropylene composites as the result of exterior weathering. Polym Degrad Stabil 97(3):337–345
5. Carus M, Eder A, Dammer L, Korte H, Scholz L, Essel R, Breitmayer E (2014) Wood-plastic composites (WPC) and natural fibre composites (NFC): European and global Markets 2012 and future trends. WPC/NFC market study 3:2014