prEN ISO 16559
(Main)Solid biofuels - Terminology, definitions and descriptions (ISO/DIS 16559:2020)
Solid biofuels - Terminology, definitions and descriptions (ISO/DIS 16559:2020)
This international standard determines the terminology and definitions for solid biofuels. According to the scope of the ISO/TC 238 this standard only includes raw and processed material originating from
— forestry and arboriculture,
— agriculture and horticulture,
— aquaculture
NOTE 1 Raw and processed material includes woody, herbaceous, fruit and aquatic biomass from the sectors mentioned above.
NOTE 2 Chemically treated material does not include halogenated organic compounds or heavy metals at levels higher than those in typical virgin material values or higher than typical values of the country of origin.
Materials originating from different recycling processes of end-of-life-products are not within the scope but relevant terms are included for information. Areas covered by ISO/TC28/SC7 “Liquid biofuels” and ISO/TC193 “Natural gas” are excluded.
Other standards with a different scope than this International Standard may have different definitions than this standard.
Biogene Festbrennstoffe - Terminologie, Definitionen und Beschreibungen (ISO/DIS 16559:2020)
Biocombustibles solides - Terminologie, définitions et descriptions (ISO/DIS 16559:2020)
Trdna biogoriva - Terminologija, definicije in opisi (ISO/DIS 16559:2020)
General Information
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN ISO 16559:2020
01-junij-2020
Trdna biogoriva - Terminologija, definicije in opisi (ISO/DIS 16559:2020)
Solid biofuels - Terminology, definitions and descriptions (ISO/DIS 16559:2020)
Biogene Festbrennstoffe - Terminologie, Definitionen und Beschreibungen (ISO/DIS
16559:2020)
Biocombustibles solides - Terminologie, définitions et descriptions (ISO/DIS
16559:2020)
Ta slovenski standard je istoveten z: prEN ISO 16559
ICS:
01.040.75 Naftna in sorodna tehnologija Petroleum and related
(Slovarji) technologies (Vocabularies)
75.160.20 Tekoča goriva Liquid fuels
oSIST prEN ISO 16559:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 16559:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 16559
ISO/TC 238 Secretariat: SIS
Voting begins on: Voting terminates on:
2020-03-24 2020-06-16
Solid biofuels — Terminology, definitions and descriptions
Biocombustibles solides — Terminologie, définitions et descriptions
ICS: 01.040.75; 27.190; 75.160.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 16559:2020(E)
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. ISO 2020
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COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2020 – All rights reserved
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oSIST prEN ISO 16559:2020
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Contents Page
Foreword ........................................................................................................................................................................................................................................iv
Introduction ..................................................................................................................................................................................................................................v
1 Scope ................................................................................................................................................................................................................................. 1
2 Normative references ...................................................................................................................................................................................... 1
3 Principle ........................................................................................................................................................................................................................ 1
4 Terms and definitions ..................................................................................................................................................................................... 2
Annex A (informative) Scheme of sample hierarchy .........................................................................................................................29
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.ISO 16559 was prepared by ISO Technical Committee TC 238, Solid biofuels, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 335, Solid biofuels, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 16559:2014), which has been technically
revised.The main changes compared to the previous edition are as follows:
— Terms an definitions updated in the whole document and
— Annex A "Scheme of sample hierarchy "added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.iv © ISO 2020 – All rights reserved
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Introduction
This International Standard has been written in accordance with ISO 10241. This International Standard
is based on European standard EN 14588:2010 as well as on approved national standards and manuals.
Some of the terms included in this International Standard are only used in particular countries.
In this International Standard instead of the legal definition waste the technical terms residue, and by-
product are used to describe co-products from forestry and arboriculture, agriculture and horticulture,
and aquaculture as well as related industries. The terms and definitions are harmonized as far as
possible with the current language used in management as well as in regulatory activities.
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oSIST prEN ISO 16559:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 16559:2020(E)
Solid biofuels — Terminology, definitions and descriptions
1 Scope
This international standard determines the terminology and definitions for solid biofuels. According to
the scope of the ISO/TC 238 this standard only includes raw and processed material originating from
— forestry and arboriculture,— agriculture and horticulture,
— aquaculture.
NOTE 1 Raw and processed material includes woody, herbaceous, fruit and aquatic biomass from the sectors
mentioned above.NOTE 2 Chemically treated material does not include halogenated organic compounds or heavy metals at
levels higher than those in typical virgin material values or higher than typical values of the country of origin.
Materials originating from different recycling processes of end-of-life-products are not within the scope
but relevant terms are included for information. Areas covered by ISO/TC 28/SC 7 “Liquid biofuels”,
ISO/TC 193 “Natural gas” and ISO/TC 300 “Solid recovered fuels” are excluded.Other standards with a different scope than this International Standard may have different definitions
than this standard.2 Normative references
There are no normative references in this document.
3 Principle
This International Standard only contains terms used to describe solid biofuels within the scope of
ISO/TC 238, see Figure 1.Figure 1 — ISO/TC 238 within the biomass-biofuel-bioenergy field
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Solid biofuels are produced from different sources, which are defined within the scope of ISO/TC 238
“Solid Biofuels”. Terms and definitions are categorised in a logical structure based on the fact that solid
biofuels are produced from different sources and that solid biofuels are used to produce bioenergy:
— origin and source of solid biofuels in the overall supply chain;— the different traded forms as well as the different forms of biofuels produced within the preparation
processes;— the most relevant solid biofuel properties and terms of sampling and testing as well as classification
and specification;— the description of the solid biofuels itself as well as their handling and processing given in the same
structure as the biomass sources;— bioenergy as the result of solid biofuel conversion.
Appropriate terms for sampling and testing as well as classification and specification of properties
have to be defined and described together with the category source/origin, type and properties of solid
biofuels. The necessity of terms defined in this International Technical Standard is in many cases based
on the classification system of solid biofuels given in ISO 17225-1, in which the classification of solid
biofuels is specified in more detail.4 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:
— ISO Online browsing platform: available at http:// www .iso .org/ obp— IEC Electropedia: available at http:// www .electropedia .org/
4.1
absorption
phenomenon whereby atoms, ions, or molecules from a gas, liquid, or dissolved solid permeates or is
dissolved by a liquid or solid (the absorbent)Note 1 to entry: Adsorption is a surface-based process while absorption involves the whole volume of the material.
[SOURCE: ISO 18757:2003, normative text summarised as term and definition]4.2
adsorption
phenomenon whereby atoms, ions, or molecules from a gas, liquid, or dissolved solid adheres to a
surface whereby the process creates a film of the adsorbate on the surface of the adsorbent
[SOURCE: ISO 18757:2003, 3.1]4.3
additive
material which has been intentionally introduced into the fuel feedstock to improve quality of fuel (e.g.
combustion properties or durability), to reduce emissions or to make production more efficient
Note 1 to entry: Trace amounts of e.g. grease or other lubricants that are introduced into the fuel processing
stream as part of normal mill operations are not considered as additives.[SOURCE: ISO 17225-2:2014, 3.2]
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4.4
agrofuels
biofuels obtained from energy crops and/or agricultural by-products (agricultural residues)
[SOURCE: FAO unified bioenergy terminology (UBET)]4.5
air dried
condition in which the solid biofuel has been dried in air to equilibrium moisture content
[SOURCE: ISO 1213-2:1992 3.5, modified – with regard to solid biofuels ]4.6
angle of repose
critical angle of repose
steepest angle of descent of a stock pile measured in degrees of the slope of material relative to the
horizontal plane when granular material on the slope face is on the verge of sliding
Note 1 to entry: The angle of repose is normally a few degrees lower than the angle of drain.
[SOURCE: ISO 4324:1977, 3]4.7
angle of drain
steepest angle of descent within a silo or a hopper when material is withdrawn from the bottom
measured in degrees of the slope of material relative to the horizontal plane when granular material on
the slope face is on the verge of slidingNote 1 to entry: The angle of drain is normally a few degrees higher than the angle of repose.
4.8animal biomass
biomass obtained from livestock
4.9
animal by-products
animal residues
agricultural by-products (or agricultural residues) obtained from livestock operations
Note 1 to entry: It includes among others solid excreta of animals.4.10
aquatic biomass
biomass from hydrophytic plants or hydrophytes, which are plants that have adapted to living in or on
aquatic environments[SOURCE: ISO 17225-1:2014, normative text summarised as term and definition]
4.11
as determined
as analysed
reference moisture content of the material at the moment of analysis/determination
Note 1 to entry: The abbreviation of “as determined” is “ad”. It is used as a subscript (e.g. A is equivalent to ash
content at the moisture content at the time of determination).[SOURCE: ISO 1213-2:1992, text summarised as term and definition with regard to solid biofuels]
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4.12
as received
as delivered
calculation basis for a material in the delivery state
Note 1 to entry: The abbreviation of “as received” is “ar”.
[SOURCE: ISO 15357:2011, 3.1, modified – "at delivery" changed to " in the delivery state"]
4.13ash
ash content
total ash
mass of inorganic residue remaining after complete combustion of a fuel under specified conditions,
typically expressed as a percentage of the mass of dry matter in fuelNote 1 to entry: See also ash fusibility, natural ash, extraneous ash.
Note 2 to entry: Depending on the combustion efficiency the ash may contain combustibles.
Note 3 to entry: If a complete combustion is realised ash contains only inorganic, non-combustible components.
[SOURCE: ISO 1213-2:1992, modified – text summarised as term and definition with regard to solid
biofuels]4.14
ash deformation temperature
temperature at which first signs of rounding due to melting of the edges of the ash test piece occur
4.15ash flow temperature
temperature at which the ash is spread out over the supporting tile in a layer, the height of which is half
of the height of the test piece at the ash hemisphere temperature4.16
ash fusibility
ash melting behaviour
characteristic physical state of the ash obtained by heating under specific conditions
Note 1 to entry: Ash fusibility is determined under either oxidising or reducing conditions.
Note 2 to entry: See also ash deformation temperature, ash flow temperature, ash hemisphere temperature and ash
shrinkage starting temperature.4.17
ash hemisphere temperature
temperature at which the height of a test piece, prepared from ash by a specific procedure, is equal to
half the width of the base, and its shape becomes approximately hemispherical4.18
ash shrinkage starting temperature
SST
temperature at which shrinking of the test piece occurs
Note 1 to entry: This temperature is defined as when the area of the test piece falls below 95 % of the original
test piece area at 550 °C.4 © ISO 2020 – All rights reserved
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4.19
bag weight
weight of the fuel including the bag
4.20
baled biofuel
bale
solid biofuel which has been compressed and bound to keep its shape and density
EXAMPLE Straw bales, bales of energy grass, bales of logging residues.
4.21
bark
organic cellular tissue which is formed by taller plants (trees, bushes) on the outside of the growth zone
(cambium) as a shell for the wooden body4.22
basic density
ratio of the mass on dry basis and the solid volume on green basis
4.23
biobased
derived from biomass
[SOURCE: EN 16575:2013, 2.1]
4.24
biobased content
fraction of a fuel that is derived from biomass
Note 1 to entry: Normally expressed as a percentage of the total mass of the product.
[SOURCE: EN 16575:2013, 2.4, modified – "product" changed to "fuel"]4.25
biobased product
biobased industrial product
bioproduct
product wholly or partly derived from biomass
Note 1 to entry: The biobased product is normally characterized by the biobased carbon content or the biobased
content.[SOURCE: EN 16575:2013, 2.5]
4.26
bioenergy
energy derived from biomass
4.27
biofuel
solid, liquid or gaseous fuel produced directly or indirectly from biomass
4.28
biofuel blend
biofuel resulting from intentionally mixing of different biofuels
EXAMPLE Straw or energy grass with wood, dried biosludge with bark.
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4.29
biofuel briquette
densified biofuel made with or without additives in pre-determined geometric form with at least two
diameters of more than 25 mm, produced by compressing biomass4.30
biofuel mixture
biofuel resulting from natural or unintentional mixing of different biofuels and/or different types of
biomass4.31
biofuel pellet
densified biofuel made with or without additives usually with a cylindrical form, random length typically
5 mm to 40 mm and diameter up to 25 mm and broken ends, produced by compressing biomass
Note 1 to entry: Usually the biomass has been milled before densification.Note 2 to entry: See also non-woody pellet, wood pellet and pellet from thermally treated biomass.
4.32biomass
material of biological origin excluding material embedded in geological formations and/or fossilized
Note 1 to entry: Biomass is organic material that is plant or animal based, including but not limited to dedicated
energy crops, agricultural crops and trees, food, feed and fibre crop residues, aquatic plants, algae, forestry and
wood residues, agricultural wastes, processing by-products and other non fossil organic matters.
Note 2 to entry: See also herbaceous biomass, fruit biomass, and woody biomass.4.33
biomass by-product
a secondary product which is made incidentally during the production of something else
EXAMPLE Sawdust when sawing timber.4.34
biomass residue
biomass from well-defined side-streams from forestry, agriculture, aquaculture and related industrial
operationsEXAMPLE Olive cake after pressing of oil, logging residues.
4.35
biomass resource owner
body or enterprise with the right to exploit the biomass resources
Note 1 to entry: The biomass resource owner can be a land or forest owner, a company etc.
4.36biomethane
methane produced from biomass (e.g. solid biofuels)
Note 1 to entry: Biomethane is not a solid biofuel. The term is included for information only.
4.37biosludge
sludge formed in the aeration basin during biological waste water treatment or biological treatment
process and separated by sedimentation or flotationNote 1 to entry: Biosludge has to be treated for the transformation into solid biomass.
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4.38
black liquor
a fluid containing lignin removed from the wood in the pulping process
Note 1 to entry: Black liquor contains also pulping chemicals.
Note 2 to entry: Black liquor is not a solid biofuel. The term is included for information only.
4.39bridging
arching
tendency of particles to form a stable arch across an opening and hindering flow
[SOURCE: ISO/DIS 21637:2019, 3.8]
4.40
briquette from thermally treated biomass
biofuel briquette made from thermally treated biomass
4.41
bulk density
mass of a portion of a particulate matter divided by the volume of the container which is filled by that
portion under specific conditions[SOURCE: ISO 1213-2:1992, 3.21, modified – with regard to solid biofuels]
4.42
bulk volume
loose volume
volume of a material including space between the particles
4.43
bundled biofuel
bundle
solid biofuels which have been bound together and where there is a lengthwise orientation of the
materialEXAMPLE Bundles of short rotation coppice, logging residues or small trees,
4.44
calorific value
heating value
energy amount per unit mass released on complete combustion
Note 1 to entry: See also gross calorific value, energy density, net calorific value.
4.45cereal crops
annual crops grown with the main purpose of using the seed for food production
Note 1 to entry: Some cereal crops can be used as a solid biofuel.
EXAMPLE Barley, wheat, rye, oat.
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4.46
certified reference material
CRM
reference material of which one or more property values are certified by a technically valid procedure,
accompanied by or traceable to a certificate or other documentation which is issued by a certifying body
[SOURCE: ISO 16967, 3.2, modified – definition updated]4.47
charcoal
biochar
biocarbon
biocoke
biocoal
solid biofuel derived from carbonization, distillation or pyrolysis of biomass
[SOURCE: ANSI/ASABE S593]
4.48
chemical treatment
any treatment with chemicals other than air, water or heat
[SOURCE: ISO 17225-7:2014, 3.3]
4.49
chopped straw
straw which has been cut into small pieces
4.50
chunkwood
wood cut with sharp cutting devices where most of the material have typical particle lengths of 50
to 150 mmNote 1 to entry: Chunkwood is substantially longer and coarser than wood chips.
4.51
coke
the solid residue of impure carbon obtained from carbon rich feedstock after removal of volatile material
by destructive distillation[SOURCE: ANSI/ASABE S593-2006]
4.52
combined sample
sample consisting of all the increments taken from a lot or a sub-lot
Note 1 to entry: The increments may be reduced by division before being added to the combined sample.
Note 2 to entry: See also annex A.[SOURCE: EN 14780:2011, 3.1, changed – Note 2 added]
4.53
complete tree
tree, including branches and root system
Note 1 to entry: See also whole tree.
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4.54
contamination
occurrence of any undesirable matter such as chemical, physical and/or microbiological matter in
the product[SOURCE: ISO 22716:2007, 2.10]
4.55
co-product
any of two or more products coming from the same unit process or product system
[SOURCE: ISO 14040:2006, 3.10]
4.56
critical control point
quality control point
CCP
point within or between processes at which relevant properties can be most readily assessed; quality
control points also offer the greatest potential for quality improvement4.57
cross-cut ends
short pieces of woody biomass which occur when the ends of logs or sawn timber are cross cut off, with
or without bark4.58
customer
organisation or person that receives a product
[SOURCE: ISO 9000:2005, 3.3.5]
4.59
cutter chips
wood chips made as a by-product of the wood processing industry, with or without bark
4.60deflagration
violent event describing subsonic combustion propagating by means of hot burning material (usually
dust) heating the next layer of cold material and igniting it in consecutive sequence
Note 1 to entry: The process can be characterized as an exploding fire whereby the burning material partly
deposits on surfaces in its path and causing significant damage and injuries.[SOURCE: EN 13857-1:2003, 2.13, modified – with regard to solid biofuels]
4.61
deflagration index
measure in bar meter per second and a product of the pressure rate and propagation of an explosion as
established by testing standards4.62
delivery agreement
contract for fuel trade, which specifies e.g. origin and source, quality and quantity of the fuel, as well as
delivery terms4.63
delivery lot
solid biofuel batch on which the essential quality requirements for solid biofuel are focused
Note 1 to entry: The delivery lot can be an individual delivery lot, which is an agreed quantity of solid biofuel (e.g. a
package, shipload or truck load), or continuous delivery, where several loads are delivered to the end-user during
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Note 2 to entry: In continuous delivery, the delivery lot is the amount of solid biofuel delivered during a specified
period of time, e.g. 24 h, unless otherwise agreed by supplier and end-user. If the delivery lot in continuous delivery
is more than 1,500 to 2,000 m in 24 h, it is recommended that it should be divided into two or more individual lots.
4.64demolition wood
used wood arising from demolition of buildings or civil engineering installations
[SOURCE: EN 13965-1:2004, 505, modified – with regard to solid biofuels, e.g. "waste" to "(used) wood"]
4.65densified biofuel
compressed biofuel
solid biofuel made by mechanically compressing biomass or thermally treated biomass to mould the solid
biofuel into a specific size and shape such as cubes, pressed logs, biofuel pellets or biofuel briquettes
Note 1 to entry: See also biofuel briquette and biofuel pellet.4.66
density
ratio of mass to volume or ratio of energy content to volume
Note 1 to entry: It must always be stated whether the density refers to the density of individual particles or to the
bulk density of the material and whether the mass of water in the material is included.
Note 2 to entry: See also bulk density, particle density and energy density4.67
desorption
phenomenon whereby a substance is released from or through a surface
Note 1 to entry: The process is the opposite of absorption and adsorption.
4.68
detonation
violent event generated by sudden expansion of gas in to a supersonic shock wave (molecular speed
higher than the speed of sound) not followed by fire[SOURCE: EN 13857-1:2003, 2.19, modified – with regard to solid biofuels]
4.69
devolatilization
process (usually pyrolysis or gasification) whereby volatile matter is removed from carbon rich
feedstock (e.g. biomass)[SOURCE: ANSI/ASABE S593]
4.70
dry ash free
dry ash free basis
daf
calculation basis in which the solid biofuel is considered free from moisture and inorganic matter
Note 1 to entry: The abbreviation of “dry ash free” is “daf”.4.71
dry
dry basis
calculation basis in which the solid biofuel is considered free from moisture
Note 1 to entry: The abbreviation of “dry basis” is “d”.
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4.72
dry matter
material remaining after removal of moisture under specific conditions
4.73
dry matter content
portion of dry matter in the total material on mass basis
Note 1 to entry: Expressed as a percentage of the total mass of the solid biofuel.
4.74dust
fragmented material of small size passing a 500 µm sieve caused by a non-intentional process
Note 1 to entry: It is opposed to fuel powder which is intentionally manufactured to size.
4.75edgings
parts of woody biomass which occur when trimming sawn timber and which show a remainder of the
original rounded surface of the tree, with or without bark4.76
end-user
consumer (private person, enterprise, utility etc.) using biofuel
4.77
energy crops
woody or herbaceous crops grown and harvested specifically for their fuel value
Note 1 to entry: See also energy forest trees, energy grass.
4.78
energy density
ratio of net energy content and bulk volume
Note 1 to entry: The energy density is calculated using the net calorific value determined and the bulk density.
4.79energy forest trees
woody biomass grown specifically for its fuel value in medium to long rotation forestry
4.80energy grain
grain used for energy purpose
4.81
energy grass
herbaceous energy crop
EXAMPLE Sugarcane, Miscanthus, Reed canary grass.
4.82
explosibility
propensity by gaseous, liquid or solid material to ignite and violently transform to high pressure gas
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4.83
explosion (primary and secondary)
violent event emitting sound and light immediately followed by fire
Note 1 to entry: An initial explosion
...
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