2007BS EN 1997-2:2007 Eurocode 7. Geotechnical design. Ground investigation and testing
1999BS 5930:1999 Code of practice for site investigations
1990BS 1377-9:1990 Methods for test for soils for civil engineering purposes - In-situ tests
BS EN ISO 22476-2+A1:2006 Geotechnical investigation and testing. Field testing. Dynamic probing has been changed from BS 1377-9:1990 Methods for test for soils for civil engineering purposes - In-situ tests.