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BSI PD CEN/TS 17702-1:2022

BSI PD CEN/TS 17702-1:2022

$167.15

Plant biostimulants. Sampling and sample preparation – Sampling

Published By Publication Date Number of Pages
BSI 2022 36
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This document specifies sampling plans and methods of representative sampling of plant biostimulants to obtain samples for physical, chemical and biological analysis. It is applicable to the sampling of lots of plant biostimulants supplied or ready for supply to third parties, as such, or in smaller lots. It is also applicable to the sampling of blends of fertilizing products where plant biostimulants are main part of the blend. Otherwise, deliverables of sampling relevant for the main part of the blend apply. This document is intended to be used by manufacturers, buyers and competent authorities to obtain samples prior to transport and supply it to a laboratory for testing. NOTE This document is applicable to the category of EU fertilizing product (plant biostimulants) in the meaning of the Regulation (EU) 2019/1009.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Sampling plans and quantitative data
4.1 Principle
4.2 Sampling plans
4.2.1 Determination of the number of sampling units which form the sampled portion
4.2.1.1 General
4.2.1.2 Plant biostimulant in packages or containers up to 50 kg or 50 l
10 4.2.1.3 Plant biostimulant in packages or containers of more than 50 kg or 50 l and up to 1 000 kg or 1 000 l
4.2.2 Identification of the sampling units to be sampled
4.2.3 Collection of increments
4.2.3.1 General
4.2.3.2 Solid plant biostimulants
4.2.3.3 Fluid plant biostimulants
11 4.3 Quantitative data
4.3.1 Mass of increments
4.3.2 Mass of aggregate/reduced samples
4.3.3 Mass of final sample
5 Incremental sampling methods
5.1 General
5.2 Solid plant biostimulants in packages – Reduction method using a rotary mechanical sample divider
5.2.1 General
5.2.2 Principle
12 5.2.3 Apparatus
5.2.3.1 General
5.2.3.2 Test for bias (referred to previous clause: Rotary mechanical sample dividers)
5.2.4 Procedure
5.2.4.1 General
13 5.2.4.2 Sample small enough for the apparatus to handle the whole quantity in one pass
5.2.4.3 Sample too large for the apparatus to handle in one pass
14 5.2.5 Precautions
5.3 Solid plant biostimulants in packages – Reduction method using a riffle divider
5.3.1 General
5.3.2 Apparatus
5.3.3 Procedure
15 5.4 Sampling of solid plant biostimulants in packages – using a spear
5.4.1 General
5.4.2 Apparatus
16 5.4.3 Procedure
17 5.5 Sampling of solid plant biostimulants in packages – Manual method
18 5.6 Sampling of fluid plant biostimulants
5.6.1 General
5.6.2 Apparatus
5.6.3 Procedure
5.6.3.1 Homogeneous fluids – containers up to 20 l
5.6.3.2 Homogeneous fluids – containers bigger than 20 l and up to 1 000 l
5.6.3.3 Heterogeneous fluids (all containers)
19 6 Reduction of aggregate sample
6.1 General
6.2 Solid plant biostimulants
6.2.1 General
6.2.2 Riffle divider
6.2.3 Coning and quartering
20 6.3 Fluid plant biostimulants
6.3.1 Apparatus
6.3.2 Procedure
6.3.2.1 Mechanical sampling device
6.3.2.2 Vessel
7 Division into final samples
8 Practical arrangements for final (laboratory) samples
8.1 General
8.2 Containers
21 8.3 Sealing of containers
8.4 Labelling of final samples
8.5 Dispatch of the final sample
8.6 Storage of final samples
9 Sampling report
9.1 General
9.2 Essential information
22 9.3 Additional information
23 Annex A (informative)Examples of rotating sample dividers
25 Annex B (informative)Test for bias in a rotary divider
26 Annex C (informative)Examples of apparatus for sampling of fluid plant biostimulant
28 Annex D (informative)Methods of mixing for fluid plant biostimulants
D.1 General
D.2 Small containers
D.2.1 Hand shaking
D.2.2 Rocking
D.3 Containers bigger than 20 l and up to 1 000 l
D.3.1 Rocking in a see-saw fashion
D.3.2 Rolling to and fro
D.3.3 Mechanically driven drum shaker or roller
29 D.3.4 Mechanical mixing
30 D.3.5 Hand mixing
31 D.3.6 Compressed gas
D.4 Precautions for sampling of multi-phase fluids
32 D.5 Precautions against static electricity

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BSI PD CEN/TS 17702-1:2022
$167.15