EN 13181:2001

Ventilation for buildings - Terminals - Performance testing of louvres subject to simulated sand

This European Standard specifies a method for measuring the sand rejection efficiency of sand trap louvres subject to simulated sand and with inlet air flow through the louvre under test. The Standard considers a 1000 mm ´ 1000 mm section of sand trap louvre, or the nearest possible blade increment, for evaluation purposes.
The purpose of the tests incorporated in this European Standard is as follows:
a) Sand Rejection Effectiveness
To establish the sand rejection effectiveness when subjected to various air flow rates through the assembly.
b) Entry loss coefficient/Pressure requirements
To establish the air pressure loss through the sand trap louvre at various air flow rates and by calculation Discharge Loss Coefficient.

Lüftung von Gebäuden - Endgeräte - Leistungsprüfung von Schutzblenden unter Einwirkung von simuliertem Sand

Diese Norm legt ein Verfahren zur Messung des Sandrückhaltegrades von Sandfangblenden unter Einwirkung von simuliertem Sand und bei einströmendem Luftstrom durch die zu prüfende Haube fest. Für die Bewertung wird in der Norm ein Abschnitt von 1 000 mm ´ 1 000 mm einer Sandfangblende oder die nächstgrößere Lamellengröße betrachtet.
Der Zweck der Prüfungen dieser Europäischen Norm besteht in
a) Sandrückhaltegrad
Festlegung des Sandrückhaltegrades, wenn unterschiedliche Luftvolumenströme durch die Baueinheit strömen.
b) Anforderungen an den Eintrittsverlustkoeffizienten bzw. Druckverlust
   Festlegung des Luftdruckverlustes durch die Sandfangblende bei unterschiedlichen Luftvolumenströmen und
   durch Berechnung des Austrittsverlustkoeffizienten.

Ventilation des bâtiments - Bouches d'air - Performances des grilles soumises à une simulation de sable

La présente Norme européenne prescrit une méthode de mesure de l'efficacité du rejet de sable des grilles équipées de piège à sable soumises à une simulation de sable et avec passage de l'air d'entrée par la grille soumise à essai. Pour les besoins de l'évaluation, la norme examine une section de 1 000 mm x 1 000 mm d'une grille équipée de piège à sable ou l'incrément de lame le plus proche possible.
Les essais mentionnés dans la présente Norme européenne ont les objectifs suivants :
a) efficacité du rejet de sable
Etablir l'efficacité du rejet de sable lors du passage de divers débits d'air dans l'ensemble.
b) Exigence en matière de pression/coefficient d'entrée
Etablir la perte de pression d'air par la grille équipée de piège à sable pour divers débits d'air, en calculant le coefficient de décharge.

Prezračevanje stavb - Enote - Preskušanje lastnosti prezračevalnih odprtin, izpostavljenih vplivu simulacije peska

General Information

• Status: Published
• Publication Date: 28-Aug-2001
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: CEN/TC 156 - Ventilation for buildings
• Drafting Committee: CEN/TC 156/WG 4 - Air terminal devices
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 16-May-2024
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: SIST EN 13181:2001 - Ventilation for buildings - Terminals - Performance testing of louvres subject to simulated sand

Relations

• Parent: EN 13030:2001 - Ventilation for buildings - Terminals - Performance testing of louvres subjected to simulated rain
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lüftung von Gebäuden - Endgeräte - Leistungsprüfung von Schutzblenden unter Einwirkung von simuliertem SandVentilation des bâtiments - Bouches d'air - Performances des grilles soumises a une simulation de sableVentilation for buildings - Terminals - Performance testing of louvres subject to simulated sand91.140.30VLVWHPLVentilation and air-conditioningICS:Ta slovenski standard je istoveten z:EN 13181:2001SIST EN 13181:2001en01-december-2001SIST EN 13181:2001SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13181August 2001ICS 23.120English versionVentilation for buildings - Terminals - Performance testing oflouvres subject to simulated sandVentilation des bâtiments - Bouches d'air - Performancesdes grilles soumises à une simulation de sableLüftung von Gebäuden - Endgeräte - Leistungsprüfung vonSchutzblenden unter Einwirkung von simuliertem SandThis European Standard was approved by CEN on 22 June 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13181:2001 ESIST EN 13181:2001

Typical test results and calculation examples.22A.1Entry loss coefficient.22A.2Sand trap louvre effectiveness.23A.2.1Recording results.23A.2.2Rating.23SIST EN 13181:2001

1000 mm section of sand trap louvre, or the nearest possible blade increment, forevaluation purposes.The purpose of the tests incorporated in this European Standard is as follows:a) Sand Rejection EffectivenessTo establish the sand rejection effectiveness when subjected to various air flow rates through theassembly.b) Entry loss coefficient/Pressure requirementsTo establish the air pressure loss through the sand trap louvre at various air flow rates and bycalculation Discharge Loss Coefficient.2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this European Standard only when incorporated in it by amendment or revision. For undatedreferences the latest edition of the publication referred to applies (including amendments).CR 12792, Ventilation for buildings — Symbols and terminologySIST EN 13181:2001

This check cantake the form of one of the following:a) a dimensional check for all flow meters not requiring calibration;b) a check calibration over their full range using the original method employed for initialcalibration of meters calibrated in situ;c) a check against a flow meter which meets the flow meter specification described in ISO 5221.5.2 Pressure measurement5.2.1Pressure in the duct shall be measured by means of a liquid-filled calibrated manometer, orany other device conforming to 5.2.2.5.2.2The maximum scale interval shall not be greater than the characteristics given in Table 2 forthe appropriate range of manometers.Table 2 — Range and scale interval for manometersRangeMax. scale intervalPaPa 251,0> 25 to
2502,5> 250 to
5005,0> 50025,0SIST EN 13181:2001

25 Pa, a micro-manometer accurate to ± 0,5 Pa;b) for instruments with the range > 25 to
500 Pa, a manometer accurate to ± 2,5 Pa (hookgauge or micro-manometer);c) for instruments with the range > 500 Pa, a manometer accurate to ± 25 Pa (verticalmanometer).5.3 Temperature measurementMeasurement of temperature shall be by means of mercury-in-glass thermometers, resistancethermometers, or thermo-couples. Instruments shall be graduated to give readings in intervals notgreater than 0,5 K and calibrated to an accuracy of 0,25 K.5.4 Weighing equipmentThe mass of sand shall be measured by means of a balance or similar device which shall have anaccuracy of + 0,5 % of the indicated weight.5.5 TimersTimers for determining sand flow rates shall have a minimum accuracy of + 0,2 s.6 Test apparatus6.1 Aerodynamic sand trap louvre test facilityThe test facility shall be constructed from a number of separate sections as illustrated in Figure 1. Itshall be capable of producing an air flow rate through the sand louvre under test over the range of0,5 m3 s-1 to 3,5 m3 s-1, simulating blown sand, and measuring pressure losses.The elements are described in 6.2 and 6.36.2 Sand injector equipmentThe sand injector equipment shall consist of a fan, injector tube, main funnel, feeder cone, distributiontube and spreader plate.The equipment shall be constructed as shown in Figures 2 and 3.The equipment shall be positioned such that its outlet is centrally located at the top of the approachduct and 1,5 m from the sand trap louvre under test.SIST EN 13181:2001

The included angle of the cone should be between 30o and 45o.The sand feeder cones shall be calibrated for the required rate of feed.6.3 Aerodynamic measurement sectionA typical arrangement is illustrated in Figure 4.The air flow rate shall be measured using an inlet cone or similar device positioned at the end of thedischarge section.
To achieve a uniform flow approaching the measurement device resistancescreens should be fitted.SIST EN 13181:2001
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