PD CEN/TS 17685-4:2026

This standard PD CEN/TS 17685-4:2026 Earthworks. Chemical tests is classified in these ICS categories:

• 13.080 Soil quality. Pedology
• 93.020 Earthworks. Excavations. Foundation construction. Underground works
• 13.080.99 Other standards related to soil quality

The purpose of this document is to describe a test for the determination of water-soluble sulphate content in a soil sample (WS), by initial dissolution in demineralized water and subsequent precipitation with a saturated barium chloride (BaCl2) solution, according to the following reaction: MSO4 + BaCl2 (sat.) → BaSO4 + MCl2 The presence of multi-valent anions in soils, such as phosphates or oxalates, can interfere with the method as they are liable to co-precipitate with the BaCl2 solution, leading to a mass increase in the residue and a subsequent overestimation of the water-soluble sulphate content. Carbonates are excluded from this interference as they are removed as CO2 (g) through the preliminary addition of hydrochloric acid. Annex B specifies a qualitative method for the rapid detection of water-soluble sulphates in soil by aqueous dissolution and subsequent precipitation with BaCl2. Furthermore, Annex C provides a quantitative method for the determination of the gypsum (CaSO4·2H2O) content in a soil sample, derived from the non-gypsum water-soluble sulphate content previously determined. The results obtained in accordance with this document do not represent the total sulphate content of the soil, but exclusively the fraction soluble in water under the specific conditions defined in this document. These results are not comparable with those obtained by CEN/TS 17685 5:2026, relative to the determination of water-soluble salt content in soils (WSS).

PD CEN/TS 17685-4:2026 Earthworks: Chemical Tests for Soluble Sulphate Content in Soils

Introducing the PD CEN/TS 17685-4:2026, a comprehensive standard that provides detailed guidelines for the determination of soluble sulphate content in soils. This essential document is a must-have for professionals in the field of geotechnical engineering, environmental science, and construction, ensuring accurate and reliable chemical testing of earthworks materials.

Key Features

• Standard Number: PD CEN/TS 17685-4:2026
• Pages: 18
• Release Date: November 3, 2026
• ISBN: 978 0 539 41001 3
• Status: Standard

Overview

This standard is meticulously crafted to guide professionals through the process of determining the soluble sulphate content in soils, a critical factor in assessing the suitability of soil for construction and other earthworks projects. The presence of sulphates in soil can significantly impact the durability and integrity of construction materials, making this standard an invaluable resource for ensuring safety and compliance in construction projects.

Why This Standard is Essential

The presence of soluble sulphates in soil can lead to chemical reactions that may compromise the structural integrity of concrete and other building materials. By adhering to the guidelines set forth in the PD CEN/TS 17685-4:2026, professionals can accurately assess the sulphate levels in soil, allowing for informed decision-making and the implementation of necessary precautions to mitigate potential risks.

Comprehensive and User-Friendly

With 18 pages of detailed instructions and guidelines, this standard is designed to be both comprehensive and user-friendly. It provides clear, step-by-step procedures for conducting chemical tests, ensuring that even those new to the field can effectively utilize the standard. The document is structured to facilitate easy navigation, allowing users to quickly find the information they need.

Who Should Use This Standard?

This standard is ideal for:

• Geotechnical Engineers
• Environmental Scientists
• Construction Managers
• Quality Control Specialists
• Laboratory Technicians

Whether you are involved in the planning, execution, or oversight of construction projects, this standard provides the necessary tools to ensure that soil conditions are thoroughly evaluated and that construction materials are protected from potential sulphate-induced damage.

Stay Ahead with the Latest Standards

Released on November 3, 2026, the PD CEN/TS 17685-4:2026 represents the latest advancements in chemical testing for earthworks. By incorporating the most recent research and technological developments, this standard ensures that users are equipped with the most up-to-date information and methodologies available.

Conclusion

In the ever-evolving field of construction and environmental science, staying informed and compliant with the latest standards is crucial. The PD CEN/TS 17685-4:2026 offers a reliable and authoritative resource for determining soluble sulphate content in soils, helping professionals to safeguard their projects and uphold the highest standards of quality and safety.

Equip yourself with the knowledge and tools necessary to excel in your field. Ensure the success and longevity of your projects by integrating the PD CEN/TS 17685-4:2026 into your professional toolkit today.