prEN 1482-2
(Main)Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 2: General sample preparation provisions
Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 2: General sample preparation provisions
This document specifies methods for the reduction and preparation of samples of fertilizers, liming materials, inhibitors and blends and sets out the requirements for sample preparation reports. It also specifies methods for the preparation of test samples and test portions from laboratory samples of fertilizer for subsequent chemical or physical analysis. It does not cover the preparation of samples for certain physical tests which require test portions of more than 2 kg.
NOTE 1 The term “fertilizer” is used throughout the body of this document and is understood to include liming materials and inhibitors unless otherwise indicated.
NOTE 2 In relation to the procedures set out in this part of the standard any special procedures specific to a particular test method will be set out in that method standard.
Düngemittel, Kalkdünger und Inhibitoren - Probenahme und Probenvorbereitung - Teil 2: Allgemeine Festlegungen zur Probenvorbereitung
Dieses Dokument legt Verfahren zur Reduzierung und Vorbereitung von Proben von Düngemitteln, Kalkdüngern, Hemmstoffen und Mischungen fest und regelt Anforderungen an Berichte zur Probenvorbereitung. Es legt ferner die Verfahren zur Herstellung von Untersuchungsproben und Prüfmengen (Einwaagen) aus Düngemittel-Laboratoriumsproben für nachfolgende chemische oder physikalische Untersuchungen fest. Nicht enthalten ist die Vorbereitung von Proben für bestimmte physikalische Untersuchungen, die Prüfmengen von mehr als 2 kg erfordern.
ANMERKUNG 1 Der Begriff „Düngemittel“ ist durchgängig in diesem Dokument verwendet worden und schließt, wenn nicht anders angegeben, Kalkdünger und Hemmstoffe mit ein.
ANMERKUNG 2 Im Zusammenhang mit den in diesem Teil der Norm aufgeführten Verfahren werden alle besonderen Verfahren, die für ein bestimmtes Prüfverfahren spezifisch sind, in dieser Verfahrensnorm aufgeführt.
Engrais, amendements minéraux basiques et inhibiteurs - Echantillonnage et préparation de l'échantillon - Partie 2 : Disposition générales pour la préparation de l'échantillon
Le présent document spécifie des méthodes de réduction et de préparation des échantillons des engrais, des amendements minéraux basiques, des inhibiteurs et des mélanges et établit les exigences relatives aux rapports d’échantillonnage. Elle spécifie également des méthodes de préparation d’échantillons d’essai et de prises d’essai issues d’échantillons de laboratoire des engrais en vue d’une analyse physique ou chimique ultérieure. La présente norme ne couvre pas la préparation d’échantillons destinés à certains essais physiques nécessitant l’obtention de prises d’essai d’une masse supérieure à 2 kg.
NOTE 1 Le terme “engrais” est utilisé tout au long du présent document et s’entend comme incluant les amendements minéraux basiques et les inhibiteurs, sauf indication contraire.
NOTE 2 En ce qui concerne les modes opératoires décrits dans la présente partie de la norme, tout mode opératoire spécial propre à une méthode d'essai particulière sera décrit dans la norme de la méthode en question.
Gnojila, sredstva za apnjenje in inhibitorji - Vzorčenje in priprava vzorcev - 2. del: Splošne zahteve za pripravo vzorcev
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2023
Gnojila, sredstva za apnjenje in inhibitorji - Vzorčenje in priprava vzorcev - 2. del:
Splošne zahteve za pripravo vzorcev
Fertilizers, liming materials and inhibitors - Sampling and sample preparation - Part 2:
General sample preparation provisions
Düngemittel, Kalkdünger und Inhibitoren - Probenahme und Probenvorbereitung - Teil 2:
Allgemeine Festlegungen zur Probenvorbereitung
Ta slovenski standard je istoveten z: prEN 1482-2
ICS:
65.080 Gnojila Fertilizers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2023
ICS Will supersede EN 1482-2:2007
English Version
Fertilizers, liming materials and inhibitors - Sampling and
sample preparation - Part 2: General sample preparation
provisions
Düngemittel, Kalkdünger und Inhibitoren -
Probenahme und Probenvorbereitung - Teil 2:
Allgemeine Festlegungen zur Probenvorbereitung
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1482-2:2023 E
worldwide for CEN national Members.
Contents
Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 7
5 Apparatus . 7
5.1 General. 7
6 Procedure . 8
6.1 General. 8
6.2 Preparation of test samples in their original condition . 8
6.3 Further preparation of test samples which are to remain in their original condition 8
6.3.1 General. 8
6.3.2 Preparation of test portions for physical testing . 8
6.3.3 Preparation of test portions for moisture analysis . 8
6.3.4 Preparation of test portions for other chemical analyses . 9
6.4 Further preparation of test samples for chemical analysis . 9
6.4.1 General. 9
6.4.2 Use of sample grinder. 9
6.4.3 Use of mortar and pestle . 9
6.5 Products which are difficult to grind mechanically . 9
6.6 Organic matter . 10
6.7 Fertilizers comprising several different materials . 10
6.8 Liquid fertilizers . 10
6.9 Foreign matter . 10
6.10 Storage . 10
6.11 Taking test portions . 10
6.11.1 Solid fertilizers . 10
6.11.2 Liquid fertilizers . 10
7 Labelling . 10
8 Sample preparation report . 11
Bibliography . 12
European foreword
This document (prEN 1482-2:2023) 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 will supersede EN 1482-2:2007.
In comparison with the previous edition, the following technical modifications have been made:
— Title, Introduction, Scope, Normative References, Terms and definitions have been updated,
— Requirements for storage have been added in 6.1.
EN 1482 “Fertilizers, liming materials and inhibitors — Sampling and sample preparation” consists of
four parts:
— Part 1: General sampling provisions;
— Part 2: General sample preparation provisions;
— Part 3: Sampling of static heaps;
— Part 4: Sampling for microbiological presence in fertilizers.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
Introduction
This document (prEN 1482-2:2023) covers the following aspects of sample preparation, derived from
the International Standards and documents indicated but presented in a simplified and condensed form.
The titles of the International Standards are given in the Bibliography.
— Reduction and preparation of samples for analysis: ISO 7410, ISO 7742, ISO 8358;
— Sampling reports: ISO 5306.
EN 1482-1 covers the sampling of fertilizers, liming materials and inhibitors.
Figure 1 gives a schematic diagram of the sampling and sample preparation process for solids when
testing for chemical and physical properties.
Figure 1 — Schematic diagram of sampling process for solids for chemical and physical testing
1 Scope
This document specifies methods for the reduction and preparation of samples of fertilizers, liming
materials, inhibitors and blends and sets out the requirements for sample preparation reports. It also
specifies methods for the preparation of test samples and test portions from laboratory samples of
fertilizer for subsequent chemical or physical analysis. It does not cover the preparation of samples for
certain physical tests which require test portions of more than 2 kg.
NOTE 1 The term “fertilizer” is used throughout the body of this document and is understood to include liming
materials and inhibitors unless otherwise indicated.
NOTE 2 In relation to the procedures set out in this part of the standard any special procedures specific to a
particular test method will be set out in that method standard.
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.
prEN 1482-1:2023, Fertilizers, liming materials and inhibitors — Sampling and sample preparation —
Part 1: General sampling provisions
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
division
process of producing a number of representative smaller portions, approximately equal in mass to each
other, from a larger mass
3.2
final sample
in relation to chemical and physical testing only, a representative part of the combined sample taken from
the sampled portion obtained, where necessary, by a process of reduction
3.3
laboratory sample
in relation to chemical and physical testing, a final sample intended for laboratory testing and in relation
to microbiological testing, each separate segment sample intended for laboratory testing
3.4
reduction
process of producing a representative smaller mass of material from a larger mass, with the remainder
being discarded
3.5
test portion
quantity of material drawn from the test sample (or from the laboratory sample if both are the same) and
on which the tests and observations are actually carried out
3.6
test sample
sample prepared from the laboratory sample and from which test portions will be taken
4 Principle
Reduction and division of the laboratory sample, as necessary, to produce test samples. Preparation of
test portions from the test samples by division, with or without previous grinding, or by combination, as
appropriate.
5 Apparatus
5.1 General
Apparatus used in the preparation and storage of samples shall be clean and dry and made from materials
which will not affect the characteristics of the fertilizer.
5.2 Rotary sample divider, conforming to the requirements specified in prEN 1482-1:2023, 5.6.3, or
riffle divider conforming to the requirements specified in prEN 1482-1:2023, 5.7.2.
5.3 Sample grinder, capable of taking the whole sample at one pass and preferably, totally enclosed.
It shall have a screen, or other mechanism without a screen, which allows the ground material to pass
through the machine into a collecting vessel and away from the cutters or grinding discs, to avoid over-
grinding. In the case of a grinder with screens, the fineness of grind can be adjusted by the fitting of
different mesh screens. Grinding shall continue until as much as possible of the fertilizer has passed
through the machine.
NOTE If the grinder is of the open type, the moisture content of the fertilizer can change significantly during
grinding.
Any machine used for grinding samples as required by this document shall be checked for satisfactory
performance. Particular points to be checked are:
a) the fineness of grinding achieved;
b) the temperature rise of the material being ground (see 6.3);
c) non-contamination of the sample.
5.4 Mortar and pestle, of suitable material and size.
5.5 Test sieves, conforming to ISO 3310-1 of nominal aperture sizes 1,0 mm, 0,5 mm and 0,18 mm.
In cases where national regulations or the nature of the material require sieves of different aperture sizes,
these may be used but the fact should be noted in the sample preparation report.
5.6 Sample containers, made of plastics material and/or glass, or any other material of adequate
resistance and fitted with air-tigh
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.