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AS ISO 24187:2025
[Current]Principles for the analysis of microplastics present in the environment
AS ISO 24187:2025 identically ISO 24187:2023, which describes the principles to be followed in the analysis of microplastics in various environmental matrices
Published: 14/02/2025
Pages: 21
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General aspects
5 General requirements for all analytical steps
6 Identification of appropriate detection methods
6.1 General
6.2 Detection techniques
6.3 Identification of objective to be addressed
7 Sampling of water
7.1 General
7.2 Sample volume
7.3 Mesh sizes
7.4 Filter materials
8 Sampling of terrestrial, semiterrestrial and subhydric soils
8.1 General
8.2 Sampling of terrestrial soils
8.3 Sampling of semiterrestrial soils
8.4 Sampling of subhydric soils (sediments)
9 Sampling of air
9.1 Indoor air
9.2 Outdoor air
10 Sampling of sludges and other similar materials
11 Sampling of mineral and other inorganic materials
12 Sampling of biota
13 Sample preparation
13.1 General aspects
13.2 Drying
13.3 Milling and grinding
13.4 Removal of inorganic matter
13.5 Removal of organic matter
14 Data processing
14.1 General aspects
14.2 Single spectra/chromatogram interpretation
14.3 Interpretation of large spectra/chromatogram data sets
15 Aspects of analytical quality assurance
15.1 Reference materials
15.2 Performance of interlaboratory comparison tests
Annex A
A.1 Introduction to advanced data processing
A.2 Methods for determining particle number and sizes (Spectroscopic procedures)
A.2.1 Chemical structure determination
A.2.2 Spatial analysis of particle contours
A.3 Methods for determining mass content (thermoanalytical and chemical methods)
A.3.1 Chemical structure determination
A.3.2 Quantification of mass content
A.4 General recommendations for evaluating databases and data processing approaches
A.4.1 Classification
A.4.2 Regression
A.5 Data file formats
A.6 A practical example for computing classification performance measures
Bibliography
Cited references in this standard