ISO 12934:2013
(Main)Tractors and machinery for agriculture and forestry — Basic types — Vocabulary
Tractors and machinery for agriculture and forestry — Basic types — Vocabulary
ISO 12934:2013 provides terms and definitions for agricultural field equipment designed primarily for use in agricultural operations for the production of food and fibre. (Other terms commonly used for "agricultural field equipment" are "farm machinery", "farm implements", "implements of husbandry" and "agricultural machinery".) ISO 12934:2013 also applies to agricultural tractors used in forestry applications. Purpose-built forestry machines, as defined by ISO 6814, are not included.
Tracteurs et matériels agricoles et forestiers — Principaux types — Vocabulaire
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 12934
First edition
2013-11-01
Tractors and machinery for
agriculture and forestry — Basic
types — Vocabulary
Tracteurs et matériels agricoles et forestiers — Principaux types
— Vocabulaire
Reference number
ISO 12934:2013(E)
©
ISO 2013
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ISO 12934:2013(E)
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ISO 12934:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Basic terms and definitions. 1
3 Machine terms and definitions . 2
Bibliography . 8
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ISO 12934:2013(E)
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. 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. 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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 23, Tractors and machinery for agriculture and
forestry, Subcommittee SC 2, Common tests.
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ISO 12934:2013(E)
Introduction
This International Standard provides definitions and terms for types of agricultural machinery and tractors
used in agriculture and forestry. It establishes uniformity in definitions for ISO/TC 23 published standards.
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INTERNATIONAL STANDARD ISO 12934:2013(E)
Tractors and machinery for agriculture and forestry —
Basic types — Vocabulary
1 Scope
This International Standard provides terms and definitions for agricultural field equipment designed
primarily for use in agricultural operations for the production of food and fibre.
NOTE Other terms commonly used for “agricultural field equipment” are “farm machinery”, “farm
implements”, “implements of husbandry” and “agricultural machinery”.
This International Standard also applies to agricultural tractors used in forestry applications. Purpose-
built forestry machines, as defined by ISO 6814, are not included.
2 Basic terms and definitions
2.1
machine
machinery
assembly, fitted with or intended to be fitted with a drive system consisting of linked parts or components,
at least one of which moves, and which are joined together for a specific application
Note 1 to entry: The terms “machinery” and “machine” also cover an assembly of machines which, in order to
achieve the same end, are arranged and controlled so that they function as an integral whole.
[SOURCE: ISO 12100:2010, 3.1, modified — “and machine” has been added to Note 1; Note 2 is not
included here.]
2.2
agricultural field equipment
agricultural tractors (3.1), self-propelled machines (3.2), implements, and combinations thereof designed
primarily for agricultural field operations
2.3
agricultural vehicle
agricultural tractor (3.1), self-propelled machinery (3.2), trailer or interchangeable towed machinery
which is primarily intended to be used in agriculture including occasional road travel
2.4
interchangeable towed machinery
machine which is designed to be towed by a tractor and changes or adds to its functions
Note 1 to entry: It may include a load platform designed and constructed to receive any tools and appliances
needed for those purposes, and to store temporarily any materials produced or needed during work.
Note 2 to entry: Any vehicle intended to be towed by a tractor and permanently incorporating an implement or
designed to process materials shall be considered interchangeable towed machinery if the ratio of the technically
permissible gross mass to the unladen mass of that vehicle is less than 3,0.
2.5
maximum design ground speed
speed based on the nominal design capability of the machine with tyres offered as original equipment
Note 1 to entry: The tyre size will be the largest diameter drive tyres on tractors and self-propelled machines (3.2)
but not necessarily on towed equipment.
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ISO 12934:2013(E)
2.6
maximum mass
mass stated by the agricultural vehicle (2.3) manufacturer to be technically permissible
2.7
technically permissible mass
sum of the maximum allowable equipment mass and allowable payload specified by the manufacturer
Note 1 to entry: This mass corresponds to the sum of the technically maximum possible axle loads and, in the case
of a semi mounted trailer, the vertical static load.
2.8
unladen mass
mass of the agricultural vehicle (2.3) in running order, if applicable with full fuel, lubricant and coolant
tanks and with a driver of a mass of 75 kg, but without passengers, optional accessories or load
3 Machine terms and definitions
When used in ISO/TC 23 standards, the following terms and definitions apply. One or more definitions
may apply to a certain machine configuration. The list provided below is not comprehensive and
therefore does not represent all the machine types that exist.
3.1
agricultural tractor
self-propelled agricultural vehicle (2.3) having at least two axles and wheels, or endless tracks,
particularly designed to pull agricultural trailers and pull, push, carry and operate implements used for
agricultural work (including forestry work), which may be provided with a detachable loading platform
Note 1 to entry: The agricultural vehicle (2.3) has a maximum design speed of not less than 6 km/h and may be
equipped with one or more seats.
3.1.1
standard agricultural tractor
agricultural tractor (3.1) having a minimum wheel track width of 1 150 mm or greater; an unladen mass,
in running order, of 400 kg or greater; and a ground clearance of 1 000 mm or less
Note 1 to entry: In some special definitions, the width, mass, and or ground clearance may be smaller or greater.
Note 2 to entry: The front tyres are smaller than the rear tyres.
3.1.2
two-wheel drive tractor
agricultural tractor (3.1) with traction power provided only through the rear tyres
Note 1 to entry: The front tyres are smaller than the rear and typically use a profile type with no traction capability.
3.1.3
all-wheel drive tractor
agricultural tractor (3.1) with two axles or more, having power to all axles
Note 1 to entry: The drive of one or more axles may be disengageable.
3.1.3.1
four-wheel drive tractor with unequal sized wheels
all-wheel drive tractor (3.1.3) with primary power provided through the rear tyres and disengageable
power through the front tyres
Note 1 to entry: The front tyres are generally larger in rolling radius than those of a two-wheel drive tractor and
use a tyre profile that will transmit traction capability.
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ISO 12934:2013(E)
3.1.3.2
four-wheel drive tractor with equal sized wheels
all-wheel drive tractor (3.1.3) with equal sized wheels and having power to both axles
3.1.3.3
all-wheel drive tractor with more than 2 axles
all-wheel drive tractor (3.1.3) with more than two axles having power to all axles
3.1.4
standard track-laying tractor
agricultural tractor (3.1) with the primary interface for traction using even multiples of belted or
linked drive tracks
Note 1 to entry: Belted units in this definition may have a positive, friction, or combination positive-friction drive.
Belts that fit over regular tractor tyres are not included in this definition.
3.1.5
articulated tractor
agricultural tractor (3.1) that is steered by means of a centre pivot articulation system
3.1.6
small tractor
agricultural tractor (3.1) having an unladen mass, in running order, of less than 400 kg
3.1.7
compact utility tractor
agricultural tractor (3.1) equipped with a 540-rpm rear PTO and a three-point hitch designed for
Category I implements only
Note 1 to entry: These tractors generally have a mass less than 1 800 kg; have less than 30 PTO kW, and are
primarily designed and advertised for use with mowers and light-duty material handling equipment. The rear
PTO and hitch categories are defined by ISO 500-1 and ISO 730, respectively.
3.1.8
extra wide tractor
agricultural tractor (3.1) characterised by their large dimensions, primarily intended for working large
areas of farmland
3.1.9
high speed tractor
standard agricultural tractor (3.1.1) having a maximum design ground speed greater than 40 km/h
3.1.10
specialized tractor
agricultural tractor (3.1) designed to operate in special field conditions (e.g. i
...
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