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2022BS EN ISO 17892-1:2014+A1:2022 Geotechnical investigation and testing. Laboratory testing of soil - Determination of water content
2014BS EN ISO 17892-1:2014 Geotechnical investigation and testing. Laboratory testing of soil. Determination of water content
1990BS 1377-2:1990 Methods of test for soils for civil engineering purposes - Classification tests