EN 14175-4:2004

SLOVENSKI STANDARD
01-april-2005
Digestoriji - 4. del: Preskusne metode na kraju samem
Fume cupboards - Part 4: On-site test methods
Abzüge - Teil 4: Vor-Ort Prüfverfahren
Sorbonnes - Partie 4: Méthodes d'essai sur site
Ta slovenski standard je istoveten z: EN 14175-4:2004
ICS:
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 14175-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2004
ICS 71.040.10
English version
Fume cupboards - Part 4: On-site test methods
Sorbonnes - Partie 4: Méthodes d'essai sur site Abzüge - Teil 4: Vor-Ort Prüfverfahren
This European Standard was approved by CEN on 22 July 2004.
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. 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 European Standard 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.
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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. EN 14175-4:2004: E
worldwide for CEN national Members.

Contents
Page
Foreword.4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 General on-site test conditions.5
5 Commissioning testing of type tested fume cupboards .6
5.1 Scope and purpose.6
5.2 Inspections .6
5.3 Manufacturer's declarations or type test certification.6
5.4 Face velocity test.7
5.4.1 Objectives.7
5.4.2 Test equipment and probe positions.7
5.4.3 Test procedure and test results .7
5.4.4 Test report .7
5.5 Extract volume flow rate test.7
5.5.1 Objectives.7
5.5.2 Average face velocity method.7
5.5.3 Calibrated pressure difference method.8
5.6 Pressure drop test .8
5.6.1 Objectives.8
5.6.2 Test equipment and test procedure.8
5.6.3 Expression of results .8
5.7 Air flow visualization .8
5.7.1 Objectives.8
5.7.2 Test procedure.9
5.7.3 Expression of results .9
5.8 Room air velocity test .9
5.8.1 Objectives.9
5.8.2 Test equipment .9
5.8.3 Probe positions.9
5.8.4 Test procedure and test results .9
5.9 Alarm system test.9
5.9.1 Alarm by overriding the vertical sash stop.9
5.9.2 Air flow indicator.9
5.10 Containment test.10
5.10.1 Objectives.10
5.10.2 Test equipment, test procedure and data analysis.10
5.10.3 Test report .10
5.11 Sound pressure measurement.10
5.11.1 Objectives.10
5.11.2 Test procedure.10
5.11.3 Test report .10
6 Routine testing of type tested fume cupboards .10
6.1 Scope and purpose.10
6.2 Face velocity test.11
6.2.1 Objectives.11
6.2.2 Test equipment and test procedure.11
6.2.3 Test report .11
6.3 Extract volume flow rate test.11
6.3.1 Objectives.11
6.3.2 Sequential average face velocity test.11
6.4 Pressure drop test.12
6.5 Air flow visualization.12
6.6 Alarm system test.12
6.7 Inspections.12
7 Qualification testing of non type tested fume cupboards.12
7.1 Scope and purpose .12
7.2 Inspections.12
7.3 Manufacturer's declarations.12
7.4 Face velocity test.12
7.5 Extract volume flow rate test.12
7.6 Pressure drop test.12
7.7 Air flow visualization.12
7.8 Room air velocity test .13
7.9 Alarm system test.13
7.10 Containment test .13
7.11 Robustness of containment .13
7.12 Air exchange efficiency.13
7.13 Sound pressure measurement.13
7.14 Illuminance test.13
8 Routine testing of qualified fume cupboards .13
9 On-site test reports.13
9.1 Test report for commissioning testing of type tested fume cupboards (see Clause 5).13
9.2 Test report for routine testing of type tested fume cupboards (see Clause 6).14
9.3 Test report for qualification testing of non type tested fume cupboards (see Clause 7) .14
9.4 Test report for routine testing of qualified fume cupboards (see Clause 8) .14

Foreword
This document (EN 14175-4:2004) has been prepared by Technical Committee CEN/TC 332 “Laboratory
equipment”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by March 2005, and conflicting national standards shall be withdrawn at the latest by
March 2005.
The tests estab
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