目录简介 | Contents Foreword 1 Scope 2 Normative References 3 General provisions 4 Basic requirements 5 Identification and description of rocks 6 Identification and description of soil 7 Identification and description of special soil 8 Building materials 9 Description of rock, soil and water samples Annex A (Normative) Unified classification of the soil Annex C (Informative) Hydrochloric acid reaction degree
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