1. ASTM D4427-92 (2002) Classification of peat samples by laboratory testing. Annual Book of American Society for Testing and Materials’ Standard, Section 4, Volume 04.08
2. ASTM D2974-00 (2002) Standard test methods for moisture, ash and organic matter of peat and other organic soils. Annual Book of American Society for Testing and Materials’ Standard, Section 4, Volume 04.08
3. ASTM D2487-00 (2002) Standard practice for classification of soils for engineering purposes (Unified soil classification system). Annual Book of American Society for Testing and Materials’ Standard, Section 4, Volume 04.08
4. ASTM D4015-92 (2002) Standard test method for modulus and damping of soils by the resonant-column method. Annual Book of American Society for Testing and Materials’ Standard, Section 4, Volume 04.08
5. ASTM D422-98 (2002) Standard test method for particle size analysis of soils. Annual Book of American Society for Testing and Materials’ Standard, Section 4, Volume 04.08