1. American society for testing and materials (ASTM). ASTM D143-94 (1994). Standard methods of testing on small clear specimens of timber. ASTM Annual Book of Standards, West Conshohocken, Pa, 2006.
2. American society for testing and materials (ASTM). ASTM D2395-02 (2002). Standard test methods for specific gravity of wood and wood-based materials. ASTM Annual Book of Standards, West Conshohocken, Pa, 2006.
3. American society for testing and materials (ASTM). ASTM E1050-12 (2012). Standard test method for impedance and absorption of acoustical materials using a tube, two microphones and a digital frequency analysis system. ASTM Annual Book of Standards, West Conshohocken, Pa, 2012.
4. American society for testing and materials (ASTM). ASTM C177-13 (2013). Standard test method for steady-state heat flux measurements and thermal transmission properties by means of the guarded-hot-plate apparatus. ASTM Annual Book of Standards, West Conshohocken, Pa, 2013.
5. American society for testing and materials (ASTM). ASTM C518-15 (2015). Standard test method for steady-state thermal transmission properties by means of the heat flow meter apparatus. ASTM Annual Book of Standards, West Conshohocken, Pa, 2015.