ISO 17892-3:2015 地盤調査と試験—土壌の実験室試験—パート3：粒子密度の決定 | ページ 2

Foreword

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ISO 17892-3 was prepared by the European Committee for standardization (CEN) TC 341 Geotechnical investigation and testing, in collaboration with ISO/TC 182 Geotechnics, Subcommittee SC 1 Geotechnical investigation and testing, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This International Standard cancels and replaces ISO/TS 17892-3:2004, which has been technically revised. It also incorporates the Technical Corrigendum ISO/TS 17892-3:2004/Cor.1:2006.

ISO 17892 consists of the following parts, under the general title Geotechnical investigation and testing — Laboratory testing of soil:

• Part 1: Determination of water content
• Part 2: Determination of bulk density
• Part 3: Determination of particle density
• Part 4: Determination of particle size distribution
• Part 5: Incremental loading oedometer test
• Part 6: Fall cone test
• Part 7: Unconfined compression test
• Part 8: Unconsolidated undrained triaxial test
• Part 9: Consolidated triaxial compression tests
• Part 10: Direct shear tests
• Part 11: Permeability tests
• Part 12: Determination of liquid and plastic limits

This corrected version of ISO 17892-3:2015 incorporates the following corrections plus other minor editorial modifications.

Foreword: It has been clarified that this is a first edition of an International Standard that is replacing a Technical Specification.

3.1: The word ‘dry’ has been added to the definition.

4.3.2: A temperature range has been specified.

Figure 2: Labels V_s and V_r have been removed.

5.2.4.3: An alternative method to determine the volume of the specimen has been added.

6.1.2: A temperature has been specified for ρ_L.

6.2.2: A note has been added.

Formula (7): Formula has been modified with a factor of 10^-6 instead of 10⁶.

Introduction

This part of ISO 17892 covers areas in the international field of geotechnical engineering never previously standardized internationally. It is intended that this part of ISO 17892 presents broad good practice and significant differences with national documents is not anticipated. It is based on international practice (see Reference [1]).

1 Scope

This part of ISO 17892 specifies methods for the determination of the particle density of soils.

This part of ISO 17892 is applicable to the laboratory determination of the particle density of soil within the scope of geotechnical investigations, and describes two methods, a pycnometer method by fluid displacement and a pycnometer method by gas displacement.

The fluid pycnometer method described in this part of ISO 17892 applies to soil types with particle sizes under about 4 mm, or soils crushed to meet this requirement. Larger pycnometers are used for coarser materials. The particle size of soils suitable for testing in the gas pycnometer is limited by the dimensions of the specimen container of the particular gas pycnometer being used.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

Bibliography