Fertilizing products - Determination of the quantity (indicated by mass or volume)

This document specifies methods for the determination of quantity of solid and liquid forms of organic fertilizers, organo-mineral fertilizers, inorganic fertilizers, liming materials, inhibitors and blends of these products. It is not applicable to the quantity determination of: growing media, soil improvers and plant biostimulants.

Düngemittel und Kalkdünger - Bestimmung der Menge (durch Angabe der Masse oder des Volumens)

Fertilisants - Détermination de la quantité (indiquée en masse ou en volume)

Sredstva za gnojenje - Določanje količine (mase ali prostornine)

General Information

Status
Not Published
Public Enquiry End Date
02-Mar-2022
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
15-Dec-2021
Due Date
04-May-2022
Completion Date
30-Mar-2022

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SLOVENSKI STANDARD
oSIST prEN 17817:2022
01-februar-2022
Sredstva za gnojenje - Določanje količine (mase ali prostornine)
Fertilizing products - Determination of the quantity (indicated by mass or volume)
Düngemittel und Kalkdünger - Bestimmung der Menge (durch Angabe der Masse oder
des Volumens)
Ta slovenski standard je istoveten z: prEN 17817
ICS:
65.080 Gnojila Fertilizers
oSIST prEN 17817:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17817:2022


DRAFT
EUROPEAN STANDARD
prEN 17817
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2022
ICS 65.080
English Version

Fertilizing products - Determination of the quantity
(indicated by mass or volume)
 Düngemittel und Kalkdünger - Bestimmung der Menge
(durch Angabe der Masse oder des Volumens)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 260.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17817:2022 E
worldwide for CEN national Members.

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prEN 17817:2022 (E)
Contents Page

European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Methods of quantity determination . 8
4.1 Destructive and non-destructive testing . 8
4.2 Determination of quantity of solid or liquid fertilizing product when sold by mass . 8
4.2.1 Apparatus . 8
4.2.2 Equipment check . 8
4.2.3 Method . 8
4.3 Determination of quantity of liquid fertilizing product when sold by volume . 9
4.3.1 Apparatus . 9
4.3.2 Equipment check . 9
4.3.3 Method . 10
4.4 Determination of quantity of fertilizing product in solid form when sold by volume . 16
4.5 Fertilizing products in packages marked in both mass and volume . 16
5 Test report . 17
Annex ZA (informative) Relationship of this European Standard and the essential
requirements of Regulation (EU) 2019/1009 making available on the market of EU
fertilizing products aimed to be covered . 18
Bibliography . 19


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European foreword
This document (prEN 17817:2022) has been prepared by Technical Committee CEN/TC 260 “Fertilizers
and liming materials”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
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Introduction
In order to measure compliance with the related requirements of the Regulation (EU) 2019/1009 [6]
relevant test methods have to be defined in harmonized standards. In this document the determination
of the quantity of organic, organo-mineral and inorganic fertilizers, liming materials, inhibitors and
blends of these fertilizing products are defined.
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1 Scope
This document specifies methods for the determination of quantity of solid and liquid forms of organic
fertilizers, organo-mineral fertilizers, inorganic fertilizers, liming materials, inhibitors and blends of
these products or blends where one or more of these products are the major ingredient in packages,
containers or in bulk.
This document is not applicable to the quantity determination of: growing media, soil improvers and
plant biostimulants.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1482-1:2007, Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling
EN 12580:2013, Soil improvers and growing media - Determination of a quantity
EN 12944-1:1999, Fertilizers and liming materials and soil improvers - Vocabulary - Part 1: General terms
EN 15238:2006, Soil improvers and growing media - Determination of quantity for materials with particle
size greater than 60 mm
EN 15761:2009, Pre-shaped growing media - Determination of length, width, height, volume and bulk
density
EN 45501:2015, Metrological aspects of non-automatic weighing instruments
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12944-1:1999, and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
fertilizing product
substance, mixture, micro-organism or any other material, applied or intended to be applied on plants
or their rhizosphere or on mushrooms or their mycosphere, or intended to constitute the rhizosphere
or mycosphere, either on its own or mixed with other material, for the purpose of providing the plants
or mushrooms with nutrient or improving their nutrition efficiency
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Chapter 1, Article 2, (1).
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3.2
soil improver
fertilizing product, which maintains, improves or protects the physical or chemical properties, the
structure or the biological activity of the soil to which it is added
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Annex I, Part II, PFC 3.
3.3
growing medium
fertilizing product, other than soil in situ, for plants or mushrooms to grow in
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Annex I, Part II, PFC 4, 1.
3.4
plant biostimulant
fertilizing product, which stimulates plant nutrition processes independently of the product’s nutrient
content with the sole aim of improving nutrient use efficiency, and/or tolerance to abiotic stress,
and/or quality traits, and/or availability of confined nutrients in the soil or rhizosphere
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Annex I, Part II, PFC 6.
3.5
fertilizing product blend
fertilizing product composed of two or more EU fertilizing products of PFC 1 to PFC 6 for which the
compliance with the requirements of Regulation (EU) 2019/1009 of each component EU fertilizing
product in the blend has been demonstrated in accordance with the conformity assessment procedure
applicable to that component EU fertilizing product
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Annex I, Part II, PFC 7, 1.
3.6
liquid form
suspension or solution
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Chapter 1, Article 2, (6).
3.7
suspension
two-phase dispersion in which solid particles are maintained in suspension in the liquid phase
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Chapter 1, Article 2, (6).
3.8
solution
liquid or gel or paste that is free of solid particles
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Chapter 1, Article 2, (6).
3.9
solid form
form characterised by structural rigidity and resistance to changes of shape or volume and in which
atoms are tightly bound to each other, either in a regular geometric lattice (crystalline solids) or in an
irregular manner (an amorphous solid)
Note 1 to entry: Based on Regulation (EU) 2019/1009 [6], Chapter 1, Article 2, (7).
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3.10
destructive testing
testing which involves opening or destroying of the package
Note 1 to entry: Based on Council Directive 76/211/EEC [1], Annex II, 2.
3.11
non-destructive testing
testing which does not involve the opening or destroying of the package
Note 1 to entry: Based on Council Directive 76/211/EEC [1], Annex II, 2.
3.12
weighing instrument
measuring instrument serving to determine the mass of a body by using the action of gravity on that
body
Note 1 to entry: Based on Directive 2014/31/EU [2], Chapter 1, Article 2, (1).
3.13
non-automatic weighing instrument
weighing instrument requiring the intervention of an operator during the weighing process to decide
that the weighing result is acceptable
Note 1 to entry: Based on Directive 2014/31/EU [2], Chapter 1, Article 2, (2).
3.14
nominal quantity
declared mass or volume of the contents of a package or container indicated on or with the package or
in documentation associated with the contents
3.15
net quantity
actual mass or volume of the contents of a package
3.16
gross quantity
mass or volume of package
3.17
package
container or wrapping plus contents
3.18
container
object in which a product is delivered
EXAMPLE Bottle, box, bag, intermediate bulk container, road tanker, lorry.
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4 Methods of quantity determination
4.1 Destructive and non-destructive testing
For economic and practical reasons destructive testing should be used only when non-destructive
testing is impractical.
4.2 Determination of quantity of solid or liquid fertilizing product when sold by mass
4.2.1 Apparatus
4.2.1.1 Weighing instrument, shall be of a suitable type and sufficiently accurate to determine the
gross quantity and mass of the container used so that a net quantity of the contents can be determined.
“Suitable type” means a non-automatic weighing instrument that complies with the requirements of
EN 45501:2015.
“Sufficiently accurate” means that the scale intervals or sensitivity of the non-automatic weighing
instrument shall be no more than one fifth of the tolerable error permitted by the Regulation (EU)
2019/1009 [6] in relation to nominal quantity being weighed.
NOTE Since half a graduation can be read on an analogue indicator non-automatic weighing instrument
weight display, digital instruments will need to indicate 50 % of those required for an analogue graduation.
4.2.2 Equipment check
Before using the non-automatic weighing instrument to establish the quantity of a fertilizing product it
shall be checked with weights, which comply with OIML R111-1 [5] and have a measurement error of
no more than one third of the maximum error for the non-automatic weighing instrument under test.
The tests are laid down in EN 45501:2015.
A record should be kept of the results of the tests.
4.2.3 Method
4.2.3.1 Packages 5 g to 25 kg
Place each package to be checked separately on the weighing plate of the non-automatic weighing
instrument and record the gross quantity for each (x).
Weigh 10 randomly selected empty containers (non-destructive testing) or if empty containers are not
available empty weigh 10 containers randomly selected from those already weighed, after ensuring no
fertilizing product remains in or on the containers (destructive testing).
Record the masses and obtain a mean mass of the containers (y). Record the calculation and result.
Subtract the mean mass of the container from the gross quantity of each packed fertilizing product and
calculate and record each net quantity (z) using Formula (1).
z x− y (1)
where
z is the net quantity by mass of the contents of an individual package in g;
x is the gross quantity by mass of an individual package in g;
y is the mean mass of the empty containers in g.
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4.2.3.2 Packages more than 25 kg to 1 t
These are packages which cannot be manually handled and require larger capacity non-automatic
weighing instruments to ascertain their gross weight.
The non-automatic weighing instrument used shall be of a suitable type and sufficiently accurate for the
net quantity of fertilizing product in the package. See 4.2.1.1.
The procedure detailed in 4.2.3.1 shall be followed except that the number of empty containers to be
weighed should be reduced to 5.
4.2.3.3 Fertilizing product sold loose and in bulk
This fertilizing product will need to be loaded into some type of transport container (vehicle, large
container or other suitable method of containing the fertilizing product). Using a non-automatic
weighing instrument suitable for the quantity of fertilizing product in the container/consignment (see
4.2.1.1). The transport container shall be weighed empty and the mass (m ) recorded. The fertilizing
t
product shall then be placed in the transport container and the gross quantity (m ) recorded. The net
g
quantity (m ) of the fertilizing product can then be calculated using the Formula (2).
n
m mm− (2)
n g t
where
mn is the net quantity of the fertilizing product in kg;
m is the gross quantity of the fertilizing product and transport container in kg;
g
m is the mass of the transport container empty in kg.
t
NOTE It is equally acceptable to weigh the gross quantity first and then empty the transport container and
determine the mass empty.
4.3 Determination of quantity of liquid fertilizing product when sold by volume
4.3.1 Apparatus
4.3.1.1 Weighing instrument capable of weighing to the nearest 0,1 g.
4.3.1.2 Sampling equipment as per EN 1482-1:2007.
4.3.1.3 Density determination equipment,
a density bottle, or
a graduated measuring cylinder with maximum 2 ml graduations, or
a density meter reading to three decimal places.
4.3.1.4 Water bath at (20 ± 1) °C.
4.3.2 Equipment check
Check weighing equipment as detailed in 4.2.2.
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4.3.3 Method
4.3.3.1 Determination of quantity when sold in liquid form
4.3.3.1.1 Packages 5 ml to 25 l
Determine the net quantity by mass (z) of the liquid fertilizing product in each package using the
method described in Clause 4.2.3.1 and Formula (1).
4.3.3.1.2 General provisions for the determination of density
Take a representative sample of the liquid fertilizing product, after thorough mixing, using a method
given in EN 1482-1:2007. The quantity of the sample shall be more than the capacity of the density
bottle.
Where the quantity of fertilizing product in each container is below the required quantity the whole
contents of a number of containers can be used to make up the sample.
For a density check to be carried out the liquid fertilizing product shall be brought to and kept at
(20 ± 1) °C during the determination process.
The method used for the determination of the density of the fertilizing product will be determined by
the physical nature of the fertilizing product.
NOTE Some fertilizing products contai
...

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