šŸ”„šŸ”„ Donā€™t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

šŸ”
BS EN ISO 21646:2022

BS EN ISO 21646:2022

$215.11

Solid recovered fuels. Sample preparation

Published By Publication Date Number of Pages
BSI 2022 72
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

This document specifies methods for sample preparation to ensure representativeness of the samples throughout the preparation procedures to produce general analysis samples. Suitable test portions can be taken from the laboratory or general analysis samples and used for analysis according to the specific requirements defined in the corresponding analytical procedures. This document specifies the correct sample preparation sequence to be applied to: a) the composite sample, in order to produce a laboratory sample (taking into account large pieces of solid recovered fuel); b) each sub-sampling step throughout the testing programme; c) the laboratory sample, in order to obtain suitable test portions; d) ensure the representativeness of the test portions that have been taken according to the sample preparation plan, prior to physical analysis, chemical analysis or both (e.g. extractions, digestion, analytical determinations). The methods specified in this document can be used for sample preparation, for example, when the samples are to be tested for bulk density, biomass content determination, mechanical durability, particle size distribution, moisture content, ash content, ash melting behaviour, calorific value, chemical composition, impurities and self-heating properties. The methods are not intended to be applied to the very large samples required for the testing of bridging properties.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
14 4 Symbols
5 Safety remarks
6 Principles of correct sample preparation
16 7 Quality control and sources of error
17 8 Apparatus
8.1 Selection of equipment
18 8.2 Apparatus for sample division
8.2.1 Scoops and shovels (sampling tools)
19 8.2.2 Riffle boxes
20 8.2.3 Rotary sample dividers
8.3 Apparatus for particle size reduction
8.3.1 Shredder
8.3.2 Coarse cutting mill
21 8.3.3 Cutting mill
8.4 Sieves
8.5 Balance
9 Sample preparation procedure
9.1 General
9.2 Step 1: Collecting the relevant information of the material for sample preparation
22 9.3 Step 2: Making a sample preparation plan
9.3.1 General
9.3.2 Sample division
9.3.3 Particle size reduction of a sample
24 9.3.4 Retaining the minimum (sub-)sample mass
25 9.4 Step 3: Performing the sample preparation plan
10 Methods for homogenization and sample division
10.1 General
10.2 Homogenization
10.3 Sample division methods
10.3.1 General
10.3.2 Riffling
26 10.3.3 Strip division
27 10.3.4 Long strip
10.3.5 Manual increment division
28 10.3.6 Rotary sample divider
10.3.7 Fractional shovelling
29 10.3.8 Quartering
30 11 Methods for mass and particle size reduction of laboratory samples and general analysis samples
11.1 General
11.2 Initial sample division
11.3 Initial mass determination
11.4 Pre-drying
31 11.5 Particle size reduction to < 30 mm
32 11.6 Sample division of < 30 mm material
11.7 Particle size reduction of < 30 mm material to < 1 mm
33 11.8 Sample division of < 1 mm material
11.9 Particle size reduction of < 1 mm material to < 0,25 mm
34 12 Handling considerations of the general analysis sample and the test portion
12.1 Key concepts
35 12.2 Sequence of preparation procedures
13 Storage, preservation and labelling of samples
14 Sample preparation report
36 15 Precision
37 Annex A (normative) Determination of the shape factor
38 Annex B (normative) Determination of the changing shape factor
40 Annex C (informative) Examples of sample preparation procedures
44 Annex D (normative) Guidelines for choosing sample preparation procedures
53 Annex E (informative) Relationship between minimum amount of sample and particle size ā€“ Formula for the estimation of the minimum amount of sample
56 Annex F (normative) Sample preparation equipment
57 Annex G (normative) Characteristics of the laboratory sample for chemical analysis of solid recovered fuel
59 Annex H (informative) Data on the precision of sample preparation
62 Annex I (informative) Results of ruggedness testing
70 Bibliography

Related products

BS EN ISO 21646:2022
$215.11