BSI PD CEN/TS 18020:2024
$198.66
Construction products: Assessment of release of dangerous substances. Sampling and quantitative determination of asbestos in construction products
| Published By | Publication Date | Number of Pages |
| BSI | 2024 | 70 |
This document summarizes methods for sampling, sample preparation and identification of asbestos in construction products. This document specifies appropriate sample preparation procedures for the quantitative analysis of the asbestos mass fraction in natural, manufactured or recycled large mineral aggregates and construction products of fine mineral particle size materials. This document describes the identification of asbestos by polarized light microscopy (PLM) and dispersion staining, scanning electron microscopy (SEM) with energy dispersive X-ray analysis or transmission electron microscopy (TEM) with energy dispersive X-ray and electron diffraction analysis. NOTE This document is intended for microscopists familiar with polarized light, transmission electron- and scanning electron microscopy methods and the other analytical techniques specified (see ISO 10312, ISO 13794, ISO 14966, [McCrone et al., 1984], [Su et al., 1995]). It is not the intention of this document to provide instructions on basic analytical techniques.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | European foreword |
| 8 | Introduction |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions |
| 16 | 4 Abbreviations |
| 17 | 5 Principle |
| 18 | 6 Asbestos 6.1 Regulated asbestos minerals Table 1 — Asbestos minerals regulated in [EC 552/2009] 6.2 Physical and morphological properties of asbestos minerals |
| 19 | 6.3 Naturally occurring asbestos (NOA) |
| 20 | 6.4 Asbestos containing construction products 7 Method detection limit |
| 21 | Table 2 — Examples of frequently used construction product types which were used before the asbestos ban 8 Limit of quantification 9 Requirements for sampling, sample preparation and analysis 9.1 Materials and equipment for sampling 9.1.1 Equipment for sampling construction products of fine grain size |
| 22 | 9.1.2 Equipment for sampling of large aggregates 9.1.3 Materials and supplies for sampling 9.2 Materials and equipment for sample preparation |
| 24 | 9.3 Materials and equipment for analysis |
| 25 | 10 Representative sample |
| 26 | 11 Sampling 11.1 General Table 3 — Classification of construction products 11.2 Safety precaution |
| 27 | 11.3 Sampling of large mineral aggregates 11.4 Sampling of construction products of mineral aggregates of fine grain size 11.5 Sampling of construction products of monolithic natural stones |
| 28 | 11.6 Sample taking 11.7 Sample protocol 11.8 Storage and transport |
| 29 | 12 Sample preparation 12.1 General 12.2 Sample preparation of construction products of fine grain size material 12.2.1 General 12.2.2 Preliminary examination of the sample |
| 30 | 12.2.3 Estimation of the mass fraction of commercially added asbestos in known construction products Table 4 — Examples of the amounts of starting material for determination of asbestos mass fraction |
| 31 | 12.2.4 Sample preparation procedures Table 5 — Summary of the various sample preparation steps in asbestos analysis 12.2.5 Sample filter preparation for quantitative analysis of the asbestos content |
| 32 | 12.3 Sample preparation of large mineral aggregates 12.3.1 Sample preparation of recycled mineral aggregates 12.3.2 Sieving of large mineral aggregates |
| 33 | Table 6 — Classification of sieve fractions 12.3.3 Sample preparation of sieve fractions for the detection and quantification of NOAs |
| 34 | 12.3.4 Sample preparation of primary aggregates 12.4 Sample preparation of construction products of natural stones 13 Identification of asbestos 13.1 General 13.2 Reference materials |
| 35 | 13.3 Identification of asbestos by polarized light microscopy 13.3.1 General Table 7 — Optical properties for identification of asbestos by PLM |
| 36 | Table 8 — Optical properties of SRM 1866 and SRM 1867 reference asbestos samples 13.3.2 Discrimination between asbestos and other elongated mineral fragments 13.3.3 Limitation in the detection of asbestos 13.3.4 PLM-specific sample preparation |
| 37 | 13.3.5 Interferences 13.4 Identification of asbestos by scanning electron microscopy and EDXA 13.4.1 General 13.4.2 Analysis via EDXA spectra and peak height ratios normalized on silica (Si) with reference spectra |
| 38 | Table 9 — Criteria for the classification of asbestos varieties based on the ratios of selected peak heights 13.4.3 Discrimination between asbestos and other elongated mineral fragments 13.4.4 Limitation in the detection of asbestos 13.4.5 SEM specific sample preparation |
| 39 | 13.5 Identification of asbestos by transmission electron microscopy 13.5.1 General 13.5.2 Discrimination between asbestos and other elongated mineral fragments 13.5.3 Limitation in the detection of asbestos 13.5.4 Preparation of isolated fibres on TEM grids 13.5.5 Preparation of filter |
| 40 | 14 Quantitative determination of asbestos mass fraction 14.1 Quantitative determination of asbestos mass fraction from pulverised test sample on a filter preparation 14.1.1 General 14.1.2 Calculation of mass fraction percentage of asbestos |
| 41 | 14.1.3 Method detection limit 14.2 Determination of asbestos mass fraction of sieve fraction from mineral aggregates 14.2.1 Analysis of sieving fractions |
| 42 | 14.2.2 Calculation of mass fraction percentage of asbestos |
| 43 | 14.2.3 Method detection limit 15 The comparability of the analytical methods Table 10 — Advantages and disadvantages of the analytical methods |
| 44 | 16 Test report |
| 46 | Annex A (informative) Types of commercial asbestos-containing material and optimum analytical procedures Table A.1 — Examples of asbestos-containing material types |
| 54 | Annex B (informative) Energy dispersive X-ray spectrum obtained from UICC reference standard Figure B.1 — EDXA spectra from chrysotile from UICC standard |
| 55 | Figure B.2 — EDXA spectra from crocidolite from UICC standard Figure B.3 — EDXA spectra from amosite from UICC standard |
| 56 | Figure B.4 — EDXA spectra from anthophyllite from UICC standard Figure B.5 — EDXA spectra from tremolite |
| 57 | Figure B.6 — EDXA spectra from actinolite |
| 58 | Annex C (informative) Criteria for interpretation of EDXA spectra Table C.1 — Criteria for interpretation of EDXA spectra |
| 59 | Annex D (informative) Range of variation in the composition of asbestos Table D.1 — Asbestos types and their chemical composition (mass percentages) |
| 60 | Annex E (informative) Example of report on determination of asbestos mass fraction from fibre measurement Table E.1 — Determination of asbestos mass fraction from fibre measurement |
| 61 | Annex F (informative) Example of report on determination of asbestos mass fraction in samples from aggregates and recycled aggregates Table F.1 — Determination of asbestos mass fraction in samples from aggregates and recycled aggregates |
| 63 | Annex G (informative) Report on determination of the limit of detection according to VDI 3866-5 G.1 Method detection limit |
| 64 | Table G.1 — Dimension and masses of the “reference fibre” G.2 Measurement uncertainty |
| 65 | G.3 Quantification limit |
| 66 | Bibliography |
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