EN 14049:2003/A1:2005
(Amendment)Irrigation techniques - Water application intensity - Calculation principles and measurement methods
Irrigation techniques - Water application intensity - Calculation principles and measurement methods
UAP of 3 months applies.
2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)
Bewässerungsverfahren - Bewässerungsintensität - Berechnungsgrundlagen und Messverfahren
Techniques d'irrigation - Intensité d'apport d'eau - Principes de calcul et méthodes de mesure
Namakalna tehnika – Količina porabe vode – Računske osnove in merilne metode
General Information
Relations
Overview
EN 14049:2003/A1:2005 - published by CEN (Technical Committee CEN/TC 334) - specifies calculation principles and measurement methods for water application intensity (WAI) in irrigation techniques. The amendment A1 (2005) updates the original 2003 text and clarifies formulas and measurement provisions for moving systems such as center-pivot irrigation. The standard focuses on how to calculate irrigation duration, average depth applied and the resulting intensity at any point along a rotating pivot system. (Note: a UAP of 3 months applies - administrative implementation detail.)
Key topics
- Calculation principles for WAI
- Formulas for irrigation duration t(r) at radius r from the pivot and for average depth D applied in one machine pass (see equations in clauses 4.2.5.3.2).
- Expression for average water application intensity I(r) as a function of flow Q, distances r and R, wetted radii W and R, and machine speed V.
- Maximum average WAI
- Identification of the location of maximum average intensity (typically at the outermost wetted radius) and the simplified expression for Imax when r = R (clause 4.2.5.3.3).
- Measurement variables and definitions
- Key variables defined include flow rate Q (m3/h), distance from pivot r, last tower distance R (m), effective wetted radii of pivot and sprinkler (R, W), and machine speed V (m/h).
- Scope and normative references
- References EN ISO 11545 for effective wetted radius definitions and gives procedural requirements for national adoption.
Applications
- Designing and calibrating center-pivot and lateral-move irrigation systems to ensure target application rates.
- Calculating real-world WAI for scheduling irrigation events and balancing soil water budgets.
- Verifying equipment performance (manufacturers, test labs) and ensuring conformity with agronomic requirements.
- Modeling irrigation uniformity and diagnosing under/over-application zones across a pivot span.
Who should use this standard
- Agricultural engineers and irrigation designers
- Farm managers and agronomists planning irrigation applications
- Irrigation equipment manufacturers and service technicians
- Testing laboratories, certification bodies and standards adopters in Europe
Related standards
- EN ISO 11545 (effective wetted radius definitions referenced)
- CEN/TC 334 publications on irrigation techniques and related EN standards
Keywords: EN 14049, water application intensity, WAI, irrigation techniques, center pivot, pivot irrigation, calculation principles, measurement methods, sprinkler wetted radius.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2006
1DPDNDOQDWHKQLND±.ROLþLQDSRUDEHYRGH±5DþXQVNHRVQRYHLQPHULOQHPHWRGH
Irrigation techniques - Water application intensity - Calculation principles and
measurement methods
Bewässerungsverfahren - Bewässerungsintensität - Berechnungsgrundlagen und
Messverfahren
Techniques d'irrigation - Intensité d'apport d'eau - Principes de calcul et méthodes de
mesure
Ta slovenski standard je istoveten z: EN 14049:2003/A1:2005
ICS:
65.060.35 Namakalna in drenažna Irrigation and drainage
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 14049:2003/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 65.060.35
English Version
Irrigation techniques - Water application intensity - Calculation
principles and measurement methods
Techniques d'irrigation - Intensité d'apport d'eau - Principes Bewässerungsverfahren - Bewässerungsintensität -
de calcul et méthodes de mesure Berechnungsgrundlagen und Messverfahren
This amendment A1 modifies the European Standard EN 14049:2003; it was approved by CEN on 8 August 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the Central Secretariat or to any CEN member.
This amendment exists 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14049:2003/A1:2005: E
worldwide for CEN national Members.
Contents
Page
Foreword .3
1 Modification to 4.2.5.3.2.4
2 Modification to 4.2.5.3.3.7
Foreword
This European Standard (EN 14049:2003/A1:2005) has been prepared by Technical Committee CEN/TC 334
“Irrigation techniques”, the secretariat of which is held by AENOR.
This Amendment to the European Standard EN 14049:2003 shall be given the status of a national standard,
either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national
standards shall be withdrawn at the latest by April 2006.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are b
...
Frequently Asked Questions
EN 14049:2003/A1:2005 is a amendment published by the European Committee for Standardization (CEN). Its full title is "Irrigation techniques - Water application intensity - Calculation principles and measurement methods". This standard covers: UAP of 3 months applies. 2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)
UAP of 3 months applies. 2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)
EN 14049:2003/A1:2005 is classified under the following ICS (International Classification for Standards) categories: 65.060.35 - Irrigation and drainage equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14049:2003/A1:2005 has the following relationships with other standards: It is inter standard links to EN 14049:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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