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BS 7755-3.11:1995

Current
Current

The latest, up-to-date edition.

Soil quality. Chemical methods Determination of water-soluble and acid-soluble sulfate
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

12-15-1995

Committees responsible
National foreword
Method
Section 1. General
1.1 Scope
1.2 Normative references
1.3 Principle
1.4 Applicability and limitations
Section 2. Pretreatment of samples and determination of
           dry matter contents
2.1 Scope
2.2 Determination of dry matter content
2.3 Preparation of soil samples for extraction with
     water in the mass: volume ratio soil; 5 water, or
     for extraction with dilute acid
2.4 Preparation of soil samples for extraction with
     water in the mass: volume ratio of 1 soil: 2 water
Section 3. Extraction of soil with water at a mass:
           volume ratio of 1 soil: 5 water
3.1 Principle
3.2 Preparation of 1: 5 water extract
3.3 Determination of dry matter content
Section 4. Extraction of soil with water at a mass:
           volume ratio of 1 soil: 2 : water
4.1 Principle
4.2 Preparation of 1: 2 water extract
4.3 Determination of dry matter content
Section 5. Extraction of soil with dilute hydrochloric
           acid
5.1 Principle
5.2 Preparation of acid extract
5.3 Determination of dry matter content
Section 6. Determination of sulfate in solution by a
           gravimetric method using barium chloride
6.1 Scope
6.2 Principle
6.3 Reagents
6.4 Apparatus
6.5 Sampling and sample preparation
6.6 Procedure
6.7 Expression of results
6.8 Interferences
6.9 Special cases
6.10 Notes on procedure
Section 7. Precision of method and test report
7.1 Repeatability and reproducibility
7.2 Test report

Applicable to all types of air-dried soils.

This International Standard specifies procedures for the preparation of water and acid extracts of air-dried soils and soil-like materials. The sulfate content of these extracts is determined by a gravimetric method in which barium chloride is added to the water or acid extract and the precipitate of barium sulfate is dried and weighed. The sulfate content is then calculated from the mass of the material used in the analysis and the mass of barium sulfate precipitated.

This International Standard is applicable to all types of air-dried soils, for example pretreated according to ISO 11464.

This International Standard consists of seven sections:

  • Section 1: General;
  • Section 2: Pretreatment of samples and determination of dry matter contents;
  • Section 3: Extraction of soil with water at a mass : volume ratio of 1 soil : 5 water;
  • Section 4: Extraction of soil with water at a mass : volume ratio of 1 soil : 2 water;
  • Section 5: Extraction of soil with dilute hydrochloric acid;
  • Section 6: Determination of sulfate in solution by a gravimetric method using barium chloride;
  • Section 7: Precision of method and test report.

Committee
EH/4
DevelopmentNote
Reviewed and confirmed by BSI, July, 2005. (07/2005) Also numbered as ISO 11048 Supersedes 93/502653 DC (10/2005)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

10/30205348 DC : 0 BS 10175 - INVESTIGATION OF POTENTIALLY CONTAMINATED SITES - CODE OF PRACTICE
BS 5930:2015+A1:2020 Code of practice for ground investigations
BS 10175(2011) : 2011 INVESTIGATION OF POTENTIALLY CONTAMINATED SITES - CODE OF PRACTICE
BS 5930:2015 Code of practice for ground investigations

BS 6068-2.39:1991 Water quality. Physical, chemical and biochemical methods Method for the determination of sulphate using barium chloride and gravimetry
BS 7755-3.5:1995 Soil quality. Chemical methods Pretreatment of samples for physico-chemical analyses
BS 7755-3.1:1994 Soil quality. Chemical methods Determination of dry matter and water content on a mass basis by a gravimetric method

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