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BSI 23/30436590 DC 2023

BSI 23/30436590 DC 2023

$13.70

BS EN 12579. Soil improvers and growing media. Sampling

Published By Publication Date Number of Pages
BSI 2023 45
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This document specifies methods for sampling of soil improvers and growing media for subsequent determination of quality and quantity. It outlines the principles to be taken into consideration when taking the sample and ensuring an adequate quantity is available for testing. This document applies to material in solid form (including pre-shaped growing media) and liquid form. This document is intended to be used by manufacturers, buyers and enforcement agencies in verifying claims made for these materials. It is not intended that it should necessarily be used for the purpose of manufacturing control. The requirements of this document can differ from the national legal requirements for the declaration of the material concerned.

PDF Catalog

PDF Pages PDF Title
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Requirements
4.1 General
4.2 General requirements for sample taken for microbiological testing
4.3 General requirements for liquid materials
4.4 Moisture content
12 5 Apparatus
6 Procedure for solid materials
6.1 General
13 6.2 Location and time of sampling
6.3 Sampling constraints
6.3.1 Limitations on the sampled portion
6.3.2 Number of final samples
6.4 Sampling
6.4.1 Number of sampling points
14 6.4.2 Distribution of sampling points
6.4.3 Volume of samples
6.4.4 Incremental samples
15 6.4.5 Microbiological testing
16 6.5 Final sample
7 Procedure for liquid materials
7.1 General
7.2 Sampling at source
7.3 Homogeneous liquids
7.4 Heterogeneous liquids
17 7.5 Sampled portion consisting of two or more containers
7.6 Solutions or suspensions in storage vessels of capacity less than 1 000 l
18 8 Packing and labelling of the final samples
8.1 General
8.2 Labelling
9 Sampling report
19 10 Dispatch of samples
20 Annex A (informative)Final sample size required
21 Annex B (informative)Examples of apparatus for sampling liquid materials
32 Annex C (informative)Methods of mixing for liquid materials
C.1 General
C.2 Small containers
C.2.1 Hand shaking
C.2.2 Rocking
C.3 Drums and casks (up to about 1,8 m deep)
C.3.1 Rocking in a see-saw fashion
C.3.2 Rolling to and from
C.3.3 Mechanically driven drum shaker or roller
C.3.4 Mechanical mixing
34 C.3.5 Hand mixing
35 C.3.6 Compressed gas
C.4 Shallow tanks
36 C.5 Deep tanks
C.5.1 General
C.5.2 Pumped circulation
C.5.3 Compressed gas
C.6 Precautions for sampling multi-phase liquids, including slurries
37 C.7 Precautions for sampling liquids with significant vapour pressure
C.7.1 Introduction
C.7.2 General precautions
C.7.3 Gases liquefied by pressure at ambient temperatures
C.7.3.1 Small storage vessels
C.7.3.2 Large storage vessels
C.8 Precautions against static electricity
C.8.1 Warning statement
C.8.2 Generation of static electricity
38 C.8.3 Discharge of static electricity
39 Annex D (informative)Schematic overview from the sampling procedure
41 Annex E (informative)Procedure for sampling bulk material
E.1 Procedure for sampling bulk material: Step 1
E.2 Procedure for sampling bulk material: Step 2
E.3 Procedure for sampling bulk material: Step 3
42 E.4 Procedure for sampling bulk material: Step 4
E.5 Procedure for sampling bulk material: Step 5
E.6 Procedure for sampling bulk material: Step 6
43 Annex F (informative)Procedure for sampling packaged material
F.1 Procedure for sampling packaged material. Step 1
F.2 Procedure for sampling packaged material. Step 2
F.3 Procedure for sampling packaged material. Step 3
F.4 Procedure for sampling packaged material. Step 4
44 F.5 Procedure for sampling packaged material. Step 5
F.6 Procedure for sampling packaged material. Step 6

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BSI 23/30436590 DC 2023
$13.70