kSIST FprEN 15935:2021
(Main)Sludge, treated biowaste, soil and waste - Determination of loss on ignition
Sludge, treated biowaste, soil and waste - Determination of loss on ignition
This European Standard specifies a method for the determination of the loss on ignition (LOI) of dry matter at 550 °C. The dry matter is determined according to EN 15934.
This method applies to the determination of loss on ignition of sludge, treated biowaste, soil and waste. The LOI of sediments can also be determined with this method.
The loss on ignition is often used as an estimate for the content of organic matter in the sample. Inorganic substances or decomposition products (e. g. H2O, CO2, SO2, O2) are released or absorbed and some inorganic substances are volatile under the reaction conditions.
Schlamm, behandelter Bioabfall, Boden und Abfall - Bestimmung des Glühverlusts
Dieses Dokument legt ein Verfahren zur Bestimmung des Glühverlusts von Trockenmasse bei 550 °C fest. Die Trockenmasse wird mit dem Verfahren nach EN 15934 bestimmt.
Dieses Verfahren zur Bestimmung des Glühverlusts ist anwendbar für Sediment, Schlamm, behandelten Bioabfall, Boden und Abfall.
ANMERKUNG Der Glühverlust dient oft als Schätzwert für den Gehalt an organischen Bestandteilen in der Probe. Anorganische Stoffe oder Zersetzungsprodukte (z. B. H2O, CO2, SO2, O2) werden freigesetzt oder aufgenommen und einige anorganische Stoffe sind unter den Reaktionsbedingungen flüchtig.
Boue, biodéchet traité, sol et déchets - Détermination de la perte au feu
Le présent document spécifie une méthode de détermination de la perte au feu (LOI) à 550 °C. La teneur en matière sèche est déterminée conformément à l’EN 15934.
Cette méthode s’applique à la détermination de la perte au feu des sédiments, des boues, des biodéchets traités, des sols et des déchets.
NOTE La perte au feu est souvent utilisée comme une estimation de la teneur en matière organique dans l'échantillon. Des substances inorganiques ou des produits de décomposition (par exemple, H2O, CO2, SO2, O2) sont libérés ou absorbés et certaines substances inorganiques sont volatiles dans les conditions opératoires.
Blato, obdelani biološki odpadki, tla in odpadki - Določevanje žarilne izgube
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 15935:2020
01-april-2020
Blato, obdelani biološki odpadki, tla in odpadki - Določevanje žarilne izgube
Sludge, treated biowaste, soil and waste - Determination of loss on ignition
Schlamm, behandelter Bioabfall, Boden und Abfall - Bestimmung des Glühverlusts
Boue, biodéchet traité, sol et déchets - Détermination de la perte au feu
Ta slovenski standard je istoveten z: prEN 15935
ICS:
13.030.20 Tekoči odpadki. Blato Liquid wastes. Sludge
oSIST prEN 15935:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 15935:2020
DRAFT
EUROPEAN STANDARD
prEN 15935
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS Will supersede EN 15169:2007, EN 15935:2012
English Version
Sludge, treated biowaste, soil and waste - Determination of
loss on ignition
Schlamm, behandelter Bioabfall, Boden und Abfall -
Bestimmung des Glühverlusts
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 444.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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15935:2020 E
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oSIST prEN 15935:2020
prEN 15935:2020 (E)
Contents Page
European foreword ....................................................................................................................................................... 3
Introduction .................................................................................................................................................................... 4
1 Scope .................................................................................................................................................................... 5
2 Normative references .................................................................................................................................... 5
3 Terms and definitions ................................................................................................................................... 5
4 Principle ............................................................................................................................................................. 5
5 Interferences and sources of errors ......................................................................................................... 5
6 Apparatus ........................................................................................................................................................... 6
6.1 Crucible, preferably flat bottom type and typically 50 mm to 70 mm in diameter,
suitable for ignition at 550 °C, e.g. made of nickel, platinum, porcelain, or silica. .................. 6
6.2 Furnace, capable of maintaining a temperature of (550 ± 25) °C .................................................. 6
6.3 Metal plate, or comparable plate, suitable for the initial cooling of crucibles ......................... 6
6.4 Desiccator, with an active drying agent, such as silica gel ............................................................... 6
6.5 Balance, with an accuracy of at least 1 mg ............................................................................................. 6
7 Procedure........................................................................................................................................................... 6
7.1 Preservation...................................................................................................................................................... 6
7.2 Pretreatment .................................................................................................................................................... 6
7.3 Determination .................................................................................................................................................. 6
7.4 Samples containing volatile substances ................................................................................................. 7
8 Calculation and expression of results ...................................................................................................... 8
9 Performance characteristics ....................................................................................................................... 8
10 Test report ......................................................................................................................................................... 8
Annex A (informative) Performance characteristics ...................................................................................... 9
A.1 Materials used in the interlaboratory comparison study ................................................................ 9
A.2 Interlaboratory comparison results ..................................................................................................... 10
Bibliography ................................................................................................................................................................. 11
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prEN 15935:2020 (E)
European foreword
This document (prEN 15935:2020) has been prepared by Technical Committee CEN/TC 444 “Test
methods for environmental characterization of solid matrices”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.This document will supersede EN 15169:2007and EN 15936:2012.
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oSIST prEN 15935:2020
prEN 15935:2020 (E)
Introduction
The method described in this document has been developed from EN 15169 (derived from EN 12879)
which was prepared by CEN/TC 292 and from EN 15935:2012 which was prepared by CEN/TC 400.
This European Standard is applicable and validated for several types of matrices as indicated in Table 1
(see also Annex A for the results of the validation).Table 1 — Matrices for which this European Standard is applicable and validated
Matrix Materials used for validation
Sludge Municipal sludge
Biowaste Compost,
Fresh Compost
Soil Sludge amended soil,
Agricultural soil
Waste Contaminated soil,
Dredged sludge (sediment),
Nickel sludge
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oSIST prEN 15935:2020
prEN 15935:2020 (E)
1 Scope
This document specifies a method for the determination of the loss on ignition (LOI) of dry matter at
550 °C. The dry matter is determined according to EN 15934.This method applies to the determination of loss on ignition of sediment, sludge, treated biowaste, soil
and waste.NOTE The loss on ignition is often used as an estimate for the content of organic matter in the sample. Inorganic
substances or decomposition products (e.g. H O, CO , SO , O ) are released or absorbed and some inorganic
2 2 2 2substances are volatile under the reaction conditions.
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 15934, Sludge, treated biowaste, soil and waste - Calculation of dry matter fraction after determination
of dry residue or water content3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
loss on ignition
LOI
mass fraction lost by incineration of a dried sample to constant mass at a specified temperature
3.2residue on ignition
mass fraction remaining after incineration of a dried sample to constant mass at a specified temperature
4 PrincipleA weighed test portion is incinerated in a furnace to constant mass at (550 ± 25) °C. The difference in
mass before and after the ignition process is used to calculate the loss on ignition.
The determination is performed on a dried sample or directly on the undried sample including a drying
step or by referring to the dry matter.5 Interferences and sources of errors
LOI is an empirical parameter, thus in principle there is no interference connected to the determination.
However, for some purposes the determination of LOI is used for the assessment of the content of organic
matter in the sample. It should be noted that elemental carbon in the sample will be included in the loss
on ignition value. Furthermore, any volatilisation or chemical reactions of inorganic compounds will also
be included in the loss on ignition value.Chemically bound water could be released during heating, thereby contributing to the loss on ignition.
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prEN 15935:2020 (E)
Samples containing iron or other metals in low bonding state or in metallic state could be oxidized during
heating, thereby contributing to the loss on ignition with a negative amount.Sulfides present in the sample could be oxidized to sulfate during heating, thereby contributing to the
loss on ignition with a negative amount.Explosive ignition is likely to result in loss of residue from the crucible, thereby contributing to the loss
on ignition.Calcium hydrox
...
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