prEN 15098

Irrigation techniques - Localised irrigation - Emitting devices, characteristics and test methods

This standard specifies the hydraulic and mechanical features necessary for defining the functioning of the emitting devices, whether or not equipped with compensating features, designed for use in localised irrigation systems.
The manner in which the manufacturers shall provide the basic engineering information for the design and use of the localised irrigation systems and the appropriate testing methods for checking and assuring the proper working order thereof are specified.
This standard applies to all the emitting devices listed in EN 13635:2001, 3.1, with the following restrictions:
- Micro-sprinklers, micro-sprayers or micro-jets are dealt with solely as components which aim is to wet a predetermined restricted area
   - Porous pipes are not included under this standard as a result of deeming the hydraulic features thereof to differ from the rest of the emitting devices.
   - Other devices such as misters, the essential function of which is that of creating a moist atmosphere more than watering as such, are not included.

Bewässerungsverfahren - Örtliche Bewässerung - Auslässe, Eigenschaften und Prüfverfahren

Diese Norm legt die hydraulischen und mechanischen Eigenschaften fest, die zum Festlegen der Funktionsweise der für den Einsatz in lokalen Bewässerungssystemen ausgelegten Auslässe erforderlich sind, unabhängig davon, ob sie mit Kompensationsfunktionen ausgestattet sind oder nicht.
Des Weiteren wird die Art und Weise festgelegt, in der die Hersteller die grundlegenden technischen Informationen über die Konstruktion und den Gebrauch von lokalen Bewässerungssystemen und über die geeigneten Prüfverfahren zum Überprüfen und Sicherstellen des korrekten Betriebszustands bereitstellen müssen.
Diese Norm gilt für alle in EN 13635:2001, 3.1, aufgeführten Auslässe mit folgenden Einschränkungen:
-   Kleinregner, Kleinsprüher oder Kleinstrahlrohre werden lediglich als Bestandteile behandelt, deren Ziel es ist, eine vorbestimmte begrenzte Fläche zu befeuchten;
-   Poröse Rohre werden in dieser Norm nicht behandelt, da deren hydraulischen Eigenschaften als unterschiedlich zu denen der restlichen Auslässe betrachtet werden;
Andere Einrichtungen wie Nebelerzeuger, deren wesentliche Funktion eher die Erzeugung einer feuchten Atmosphäre als die Bewässerung ist, sind ausgeschlossen.

Techniques d'irrigation - Irrigation localisée - Caractéristiques et méthodes d'essais des asperseurs

Namakalna tehnika – Lokalizirano namakanje - Odvajalne naprave, značilnosti in preskusne metode

General Information

• Status: Not Published
• Technical Committee: CEN/TC 334 - Irrigation techniques
• Drafting Committee: CEN/TC 334/WG 5 - Localized irrigation
• Current Stage: 3098 - Decision to reject - Consensus building
• Start Date: 27-Sep-2006
• Completion Date: 27-Sep-2006
• Ref Project: oSIST prEN 15098:2005 - Irrigation techniques - Localised irrigation - Emitting devices, characteristics and test methods

Overview

prEN 15098 (CEN draft) defines the hydraulic and mechanical features and test methods required to specify the functioning of emitting devices used in localised irrigation systems. The standard sets out how manufacturers must provide the basic engineering data for system design and the appropriate verification tests to assure correct operation. It applies to the device families listed in EN 13635:2001 with specific exclusions (porous pipes and devices intended to create a moist atmosphere rather than irrigate).

Key Topics

• Scope and classification: Covers drip devices, emitting pipes and tapes, sprayers and micro‑sprinklers as components for wetting a restricted area. Excludes porous pipes and misters.
• Materials and manufacture: Emphasis on UV resistance, corrosion and abrasion resistance, and minimising biological build‑up. Manufacturer declarations of any restrictions are required.
• Connections and assembly: Requirements for compatibility with PE piping and standard threads (ISO 7‑1) and demands for interchangeability and accessibility of removable parts.
• Design feature tests: Visual inspection criteria (no cracks, pores, or defects) and dimensional checks for emitting pipes per ISO 9261.
• Hydraulic tests: Uniformity of emission, emission rate versus inlet pressure (q = k · p^m), and wetted radius procedures for micro‑sprinklers and sprayers (including wind limit and collector layout).
• Mechanical tests: Tightness and integrity testing after assembly/disassembly cycles and environmental stress cracking tests for emitting pipes (bend or spigot procedures depending on wall thickness).
• Identification and marking: Mandatory marking elements such as manufacturer name, rated flowrate, maximum working pressure and catalogue references, plus roll labels and directional arrows when needed.

Applications

prEN 15098 is practical for:

• Manufacturers of emitting devices and emitting pipes who need to supply compliant design data and labelling.
• Product engineers and test laboratories performing hydraulic and mechanical verification (uniformity, emission/pressure characteristics, tightness, stress cracking).
• Irrigation system designers seeking reliable specifications for localised irrigation components to ensure predictable performance and easier quality assurance during installation and maintenance.

Benefits include clearer manufacturer guidance, enhanced system reliability, easier product selection and improved interchangeability of parts.

Related Standards

• EN 13635:2001 - Terminology and data to be supplied by the manufacturer
• ISO 9261:2004 - Emitters and emitting pipe specification and test methods
• ISO 8796:2004 - PE pipes for irrigation laterals (stress cracking tests)
• ISO 7‑1 and ISO 8026 - Threading and general sprayer requirements

By aligning device design, testing and marking with prEN 15098, stakeholders can reduce installation risk, improve performance predictability and simplify quality control for localised irrigation systems.

Standards Content (Sample)

SLOVENSKI oSIST prEN 15098:2005

PREDSTANDARD
marec 2005
Namakalna tehnika – Lokalizirano namakanje - Odvajalne naprave,
značilnosti in preskusne metode
Irrigation techniques - Localised irrigation - Emitting devices, characteristics and
test methods
ICS 65.060.35 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS
English version
Irrigation techniques - Localised irrigation - Emitting devices,
characteristics and test methods
Techniques d'irrigation - Irrigation localisée -
Caractéristiques et méthodes d'essais des asperseurs
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 334.
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 Management Centre 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.
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
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15098:2004: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Classification.4
5 General requirements.5
6 Design feature tests .5
7 Hydraulic tests .6
8 Mechanical tests .7
9 Identification and marking .9
Bibliography .11

Foreword
This document (prEN 15098:2004) has been prepared by Technical Committee CEN/TC 334 “Irrigation
techniques”, the secretariat of which is held by AENOR.
This document is currently submitted to the CEN Enquiry.

1 Scope
This standard specifies the hydraulic and mechanical features necessary for defining the functioning of the
emitting devices, whether or not equipped with compensating features, designed for use in localised irrigation
systems.
The manner in which the manufacturers shall provide the basic engineering information for the design and use
of the localised irrigation systems and the appropriate testing methods for checking and assuring the proper
working order thereof are specified.
This standard applies to all the emitting devices listed in EN 13635:2001, 3.1, with the following restrictions:
- Micro-sprinklers, micro-sprayers or micro-jets are dealt with solely as components which aim is to wet a
predetermined restricted area
- Porous pipes are not included under this standard as a result of deeming the hydraulic features thereof
to differ from the rest of the emitting devices.
- Other devices such as misters, the essential function of which is that of creating a moist atmosphere
more than watering as such, are not included.

2 Normative references
The following referenced documents are indispensable for the application 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 13635:2001, Irrigation Techniques - Localised irrigation systems-Terminology and data to be supplied by
the manufacturer
ISO 9261:2004 Agricultural irrigation equipment - Emitters and emitting pipe – Specification and test methods
ISO 8026 Agricultural irrigation equipment – Sprayers - General requirements and test methods
ISO 8796:2004 Polyethylene PE 32 and PE 40 pipes for irrigation laterals. Susceptibility to environmental
stress cracking induced by insert type fittings. Test methods and requirements
ISO 7-1 Pipe threads where pressure-tight joints are made on the threads – Part 1: Dimensions, tolerances
and designation
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 13635:2001 apply.
4 Classification
For the purposes of the tests to be conducted, the emitting devices which are to be included under this
standard are classified as follows
a) Drip devices
b) Emitting pipes and tapes
c) Sprayers
d) Micro sprinklers
5 General requirements
5.1 Materials
The plastic materials that are exposed to light shall be opaque and UV resistant.
Plastics, rubber and metal parts shall be as much as possible corrosion-resistant, abrasion-resistant and
resistant to ageing.
In all cases, to the extent possible, neither algae nor bacteria shall be allowed to build up in the system, and
its parts shall withstand waters containing chemicals commonly used in agriculture and wastewater.
The manufacturer shall provide information regarding any restriction.
5.2 Manufacture and assembly
The emitting devices shall have no manufacturing defect whatsoever which might be detrimental to the
operating features thereof.
They shall be features providing easy fitting and assembly. All those equipped with removable parts shall be
easy to operate manually or using common tools. Should any special tool be required, the manufacturer shall
furnish the same. The removable parts of one same type and one same make shall be interchangeable.
5.3 Connections
When polyethylene (PE) pipe is used, in-line emitting devices or insert-type fittings shall not increase the pipe
diameter by more than 13%.
In those cases in which threaded connections of emitting devices are used to fit with other standardised
elements, the threading shall adhere to the specific international standard, or to ISO 7-1, and the number of
thread turns used for the assembly shall be three or more (as specified in ISO 8026).
6 Design feature tests
6.1 Visual Aspects
The new emitting devices as a whole and each one of the parts thereof into which they can be disassembled
shall not have any cracks, holes or pores. Nor shall it be admissible for them to have any scratches, any
ridges or any other visible manufacturing defect which might lessen their performance, useful life, operation or
proper installation.
The check of visual aspects shall be conducted on a minimum of 25 emitting devices selected at random from
a batch of at least 500 emitting devices.
6.2 Dime
...