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BRITISH STANDARD

BS 1377 : Part 3 : 1990
Incorporating Amendment No. 1

Methods of test for

Soils for civil engineering purposes
Part 3. Chemical and electro-chemical tests

BS 1377 : Part3 : 1990

Issue 2, April 1996

Foreword

This Part of ES 1377 has been prepared under the direction of the Road Engineering Standards Policy Committee. It is a revision of clause 3 of BS 1377: 1975 which is superseded by amendment. BS 1377 was first published in 1948 and first appeared in metric form in 1975. BS 1377 : 1975 which has now been withdrawn is replaced I by the following Parts of BS 1377 : 1990: Part 1. General requirements and sample preparation Part 2. Classification tests Part 3. Chemical and electro-chemical tests Part 4. Compaction-related tests Part 5.Compressibility, permeability and durability tests Part 6. Consolidation and permeability tests in hydraulic cells and with pore pressure measurement Part 7. Shear strength tests (total stress) Part 8. Shear strength tests (effective stress) Part 9. In-situ tests Reference should be made to Part 1 for further information about each of the Parts. In this Part of BS 1377 the test methods described in the 1975edition have been retained with some modification, and the following methods of test have been introduced: (a) determination of loss on ignition; (b) determination of carbonate content; (c) determination of chloride content; (d) determination of total dissolved solids content; (e) determination of electrical resistivity; (f) determination of the redox potential; Sample test forms are shown inAppendix A. It has been assumed in the drafting of this British Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. Caution. Attention should be given to the potentially hazardous nature of certain chemicals by following recognized practice and taking the appropriate precautions. These include the use of a fume cupboard when using acids and othertoxic chemicals. Special care and precautions may be necessary when dealing with contaminated ground (see DD 175). Compliance with a British Standard does not of itself confer immunity from legal obligations.

Issue 1, April 1996

BS 1377 : Part 3 : 1990

Summary of pages
The following table identifies the current issue of each page. Issue 1 indicates that a page has been introduced forthe first time by amendment. Subsequent issue numbers indicate an updated page. Vertical sidelining on replacement pages indicates the most recent changes (amendment, addition, deletion). Pg ae Front cover Inside front cover z 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
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BS1377: Part 3 : 1990Contents

Page Foreword Committees responsible Methods 1 Scope 2 Definitions 3 Determination of the organic matter content 3.1 General 3.2 Apparatus 3.3 Reagents 3.4 Procedure 3.5 Calculations 3.6 Test report 4 Determination of the mass loss on ignition 4.1 General 4.2 Apparatus 4.3 Procedure 4.4 Calculations 4.5 Test report Determination of the sulphate content of soil and ground water 5.1General 5.2 Preparation of soil and its acid extract 5.3 Preparation of soil and its water extract 5.4 Preparation of ground water for testing 5.5 Gravimetric method for analysis of acid or water extract or ground water 5.6 Ion-exchange method for analysis of water extract or ground water 6 Determination of the carbonate content 6.1 General 6.2 Preparation of sample 6.3 Rapid titration method...