BS EN ISO 21268-4:2019
Soil quality. Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials Influence of pH on leaching with initial acid/base addition
Standard number: | BS EN ISO 21268-4:2019 |
Pages: | 40 |
Released: | 2019-12-17 |
ISBN: | 978 0 580 51846 1 |
Status: | Standard |
BS EN ISO 21268-4:2019: Soil Quality Standard
Discover the comprehensive guide to understanding soil quality with the BS EN ISO 21268-4:2019 standard. This essential document provides detailed leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials, focusing on the influence of pH on leaching with initial acid/base addition.
Overview
The BS EN ISO 21268-4:2019 is a pivotal standard for professionals in environmental science, agriculture, and related fields. Released on December 17, 2019, this standard is a critical resource for understanding the complex interactions between soil components and their chemical and ecotoxicological properties. With a total of 40 pages, it offers an in-depth exploration of leaching procedures, ensuring that users can conduct accurate and reliable tests.
Key Features
- Standard Number: BS EN ISO 21268-4:2019
- Pages: 40
- Release Date: December 17, 2019
- ISBN: 978 0 580 51846 1
- Status: Standard
Importance of Soil Quality Testing
Soil quality testing is crucial for maintaining environmental health and ensuring sustainable agricultural practices. The BS EN ISO 21268-4:2019 standard provides a framework for assessing the leaching potential of soils, which is vital for understanding how contaminants can move through the soil and potentially enter water systems. By focusing on the influence of pH, this standard helps professionals predict and mitigate the environmental impact of soil contaminants.
Detailed Leaching Procedures
The standard outlines specific procedures for leaching tests, which are designed to simulate natural conditions and provide accurate data on the behavior of soil contaminants. These procedures are essential for conducting chemical and ecotoxicological tests that inform environmental assessments and remediation strategies. By following the guidelines set forth in this standard, users can ensure that their testing methods are consistent, reliable, and scientifically sound.
Influence of pH on Leaching
One of the key aspects of the BS EN ISO 21268-4:2019 standard is its focus on the influence of pH on leaching processes. pH is a critical factor that affects the solubility and mobility of contaminants in soil. By understanding how pH influences leaching, professionals can better predict the behavior of contaminants and develop strategies to manage their impact. The standard provides detailed guidance on adjusting pH levels through initial acid/base addition, allowing for more precise control over leaching tests.
Applications and Benefits
This standard is invaluable for a wide range of applications, including:
- Environmental Impact Assessments: Provides essential data for evaluating the potential impact of soil contaminants on the environment.
- Agricultural Management: Helps farmers and agronomists understand soil health and make informed decisions about crop management and soil treatment.
- Remediation Projects: Guides the development of effective strategies for cleaning up contaminated sites and restoring soil quality.
- Research and Development: Supports scientific research into soil chemistry and ecotoxicology, contributing to the advancement of environmental science.
Why Choose BS EN ISO 21268-4:2019?
Choosing the BS EN ISO 21268-4:2019 standard means investing in a reliable and authoritative resource that enhances your understanding of soil quality and leaching processes. This standard is recognized internationally, ensuring that your testing methods align with global best practices. Whether you are conducting research, managing agricultural lands, or working on environmental remediation projects, this standard provides the guidance you need to achieve accurate and meaningful results.
Conclusion
The BS EN ISO 21268-4:2019 standard is an indispensable tool for anyone involved in soil quality testing and environmental management. With its detailed procedures and focus on the influence of pH, it offers a comprehensive approach to understanding and managing soil contaminants. By adhering to this standard, you can ensure that your testing methods are robust, reliable, and aligned with international standards.
Invest in the BS EN ISO 21268-4:2019 standard today and take a significant step towards enhancing your soil quality testing capabilities and contributing to a healthier environment.
BS EN ISO 21268-4:2019
This standard BS EN ISO 21268-4:2019 Soil quality. Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials is classified in these ICS categories:
- 13.080.05 Examination of soils in general
This document specifies a test to obtain information on the short- and long-term leaching behaviour and characteristic properties of materials.
The document has been developed to measure the pH-dependent release of inorganic and organic substances from soil and soil-like material as well as to produce eluates for subsequent ecotoxicological testing. For ecotoxicological testing, see ISO 15799 and ISO 17616. The equilibrium condition, as defined in this document, is established by the addition of predetermined amounts of acid or base to reach desired final pH values.
Volatile organic substances include the low molecular weight substances in mixtures such as mineral oil.
It is not always possible to optimize test conditions simultaneously for inorganic and organic substances and optimum test conditions can also vary between different groups of organic substances. Test requirements for organic substances are generally more stringent than those for inorganic substances. The test conditions suitable for measuring the release of organic substances will generally also be applicable to inorganic substances.
Within the category of organic substances, a significant difference in behaviour exists between the more polar, relatively water-soluble compounds and apolar, hydrophobic organic substances (HOCs). In the latter case, mechanisms of release (e.g. particle-bound or dissolved organic carbon-bound) can be more crucial as well as sorption losses of soluble HOCs on different materials with which they come in contact (e.g. bottles, filters). The test and the results should be used for leaching of organic substances only with thorough consideration of the specific properties of the substances in question and the associated potential problems.
For ecotoxicological testing, eluates representing the release of both inorganic and organic substances are needed. In this document, ecotoxicological testing is meant to include genotoxicological testing.
The test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods in accordance with existing standard methods. The test is not suitable for substances that are volatile under ambient conditions.
For the purposes of ecotoxicological tests, the relevant pH range (see 8.2) will usually be pH 5 to pH 9.
This test is mainly aimed at being used for routine and control purposes, and it cannot be used alone to describe all leaching properties of a soil. Additional leaching tests are needed for that extended goal. This document does not address issues related to health and safety. It only determines the leaching properties outlined in Clause 5.