BS EN ISO 21268-3:2019
Soil quality. Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials Up-flow percolation test
| Standard number: | BS EN ISO 21268-3:2019 |
| Pages: | 48 |
| Released: | 2019-10-30 |
| ISBN: | 978 0 580 99416 6 |
| Status: | Standard |
BS EN ISO 21268-3:2019 - Soil Quality Standard
Discover the comprehensive guide to soil quality assessment with the BS EN ISO 21268-3:2019 standard. This essential document provides detailed procedures for leaching tests, crucial for subsequent chemical and ecotoxicological testing of soil and soil-like materials. Whether you are an environmental scientist, a laboratory technician, or a regulatory body, this standard is an indispensable tool for ensuring accurate and reliable soil quality assessments.
Overview
The BS EN ISO 21268-3:2019 standard is a pivotal document in the field of environmental science, focusing on the quality of soil through leaching procedures. Released on October 30, 2019, this standard is part of a series that addresses various methods for testing soil and soil-like materials. It specifically details the Up-flow Percolation Test, a method designed to simulate natural leaching processes, providing valuable data for chemical and ecotoxicological analysis.
Key Features
- Standard Number: BS EN ISO 21268-3:2019
- Pages: 48
- ISBN: 978 0 580 99416 6
- Status: Standard
Why Choose BS EN ISO 21268-3:2019?
This standard is meticulously crafted to provide a robust framework for soil testing, ensuring that the results are both accurate and reproducible. The up-flow percolation test outlined in this document is particularly valuable for its ability to mimic natural leaching conditions, offering insights into the potential environmental impact of soil contaminants.
Benefits of the Up-flow Percolation Test
The up-flow percolation test is a critical component of the BS EN ISO 21268-3:2019 standard. It offers several advantages:
- Realistic Simulation: By simulating natural leaching processes, this test provides realistic data on how contaminants may behave in the environment.
- Comprehensive Analysis: The test allows for the assessment of both chemical and ecotoxicological properties, providing a holistic view of soil quality.
- Versatility: Suitable for a wide range of soil and soil-like materials, making it applicable in various environmental contexts.
Applications
The BS EN ISO 21268-3:2019 standard is widely used across different sectors, including:
- Environmental Monitoring: Essential for organizations involved in monitoring soil quality and assessing environmental impact.
- Regulatory Compliance: Helps ensure compliance with environmental regulations and standards.
- Research and Development: A valuable resource for researchers studying soil contamination and remediation techniques.
Comprehensive and Authoritative
With 48 pages of detailed procedures and guidelines, the BS EN ISO 21268-3:2019 standard is a comprehensive resource for anyone involved in soil quality assessment. Its authoritative nature ensures that users can rely on the information provided to conduct accurate and reliable tests.
Conclusion
In the realm of soil quality assessment, the BS EN ISO 21268-3:2019 standard stands out as a critical resource. Its detailed procedures for the up-flow percolation test provide invaluable insights into the chemical and ecotoxicological properties of soil and soil-like materials. By choosing this standard, you are equipping yourself with a tool that ensures precision, reliability, and compliance in soil testing.
Embrace the future of soil quality assessment with the BS EN ISO 21268-3:2019 standard, and ensure that your environmental testing is both comprehensive and accurate.
BS EN ISO 21268-3:2019
This standard BS EN ISO 21268-3:2019 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, which is aimed at determining the leaching behaviour of inorganic and organic substances from a soil and soil-like materials. The method is a once-through up-flow percolation test under standardized conditions of flow rate. The material is leached under dynamic hydraulic conditions. The document has been developed to measure the 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[ 6] and ISO 17616[ 7]. The test results enable the distinction between different release patterns, for instance wash-out and release under the influence of interaction with the matrix, when approaching local equilibrium between material and leachant.
This test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods in accordance with existing standard methods. The results of eluate analysis are presented as a function of the liquid/solid (L/S) ratio. The test is not suitable for substances that are volatile under ambient conditions.
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 also meant to include genotoxicological testing.
The test is generally not suitable for soils with hydraulic conductivities below 10 â??8 m/s (see also Annex B). It can be difficult to maintain the designated flow rate already in the range of saturated hydraulic conductivity between 10 â??7 m/s and 10 â??8 m/s.
The application of this test method alone is not sufficient for the determination of the leaching behaviour of a material under specified conditions different to those from the test procedure, since this generally requires the application of several test methods, behavioural modelling and model validation. This document does not address issues related to health and safety. It only determines the leaching properties as outlined in Clause 4.