SIST EN 14175-4:2005

SLOVENSKI STANDARD
SIST EN 14175-4:2005
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
SIST EN 14175-4:2005 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 14175-4:2005

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SIST EN 14175-4:2005
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.
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. EN 14175-4:2004: E
worldwide for CEN national Members.

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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
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
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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
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

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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
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 established in this standard should be carried out by trained personnel.
This European Standard EN 14175 consists of the following parts, under the general title Fume cupboards
 Part 1: Vocabulary
 Part 2: Safety and performance requirements
 Part 3: Type test methods
 Part 4: On-site test methods
 Part 5: Recommendations for installation and maintenance (in preparation)
 Part 6: Variable air volume fume cupboards (in preparation)
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: 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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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
1 Scope
This document specifies a selection of on-site test methods for the following general purpose fume cupboards:
 Fume cupboards designed in accordance with Part 2 of this European Standard and type tested in accordance
with Part 3 of this European Standard.
 Fume cupboards designed in accordance with Part 2 of this European Standard and not type tested.
The test methods are designed to be used at the place of installation of the fume cupboard, usually a laboratory.
They are used for commissioning after installation, for maintenance and for qualification purposes. For certain
customer requirements additional or modified test methods may be necessary.
It is in the responsibility of the purchaser or user of a fume cupboard to decide which tests are to be performed. The
commissioning testing can be selected and carried out from the type test methods. For routine testing, the number
of test methods selected can be further reduced.
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 14175-1:2003, Fume cupboards – Part 1: Vocabulary.
EN 14175-2:2003, Fume cupboards – Part 2: Safety and performance requirements.
EN 14175-3:2003, Fume cupboards – Part 3: Type test methods.
EN 61672-1, Electroacoustics – Sound level meters – Part 1: Specifications (IEC 61672-1:2002).
EN ISO 11202, Acoustics – Noise emitted by machinery and equipment – Measurement of emission sound
pressure levels at a work station and at other specified positions – Survey method in situ (ISO 11202:1995).
ISO 5221, Air distribution and air diffusion -- Rules to methods of measuring air flow rate in an air handling duct.

3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14175-1:2003 and EN 14175-3:2003
apply.
NOTE Attention is drawn to EN 14175-3 where some definitions given in EN 14175-1 have been modified.
4 General on-site test conditions
Windows and doors of the room shall remain closed during measurements. There shall be no unnecessary
obstructions or equipment in neighbourhood of the fume cupboard under test.
The general and the specific test conditions during all on-site tests, including make-up air sources and all extract air
openings, shall be carefully considered and documented in the on-site test report according to Clause 9.
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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
5 Commissioning testing of type tested fume cupboards
5.1 Scope and purpose
The following test methods are considered to be appropriate for the commissioning test after installation of a fume
cupboard which has been type tested in accordance with EN 14175-3 before installation. It is the aim of
commissioning testing to show the correct installation of the fume cupboard and to check adverse effects of the
room air flow and of the extract system on the performance of the installed empty fume cupboard under its intended
design conditions.
The final purpose and extent of the commissioning test should be agreed upon between purchaser and supplier.
5.2 Inspections
5.2.1 Inspections are usually optical inspections, if appropriate, aided by simple measurement equipment, such
as tape-measure. The following items should be proven by inspection.
5.2.2 Observance of the manufacturer's installation instructions (see EN 14175-2:2003, 10b).
5.2.3 Protection against splashes (see EN 14175-3:2003, 6.3)
5.2.4 Sash suspension and sash stop (see EN 14175-3:2003, 6.1 and 6.4)
5.2.5 Sash displacement force (see EN 14175-3:2003, 6.2)
5.2.6 Conformity of the fume cupboard to the type tested unit
5.2.7 Services (see EN 14175-2:2003, Clause 9)
5.2.8 Materials (see EN 14175-2:2003, Clause 6)
5.2.9 Correct mechanical assembling and integrity after installation
5.2.10 Pressure relief if supplied (see EN 14175-2:2003, 7.2.4)
5.2.11 Accessibility of construction parts (see EN 14175-2:2003, 7.2.5)
5.3 Manufacturer's declarations or type test certification
5.3.1 The following items shall be covered by manufacturer's declarations.
5.3.1.1 Lighting (see EN 14175-2:2003, 9.4)
5.3.1.2 Services
5.3.1.3 Materials
5.3.2 The following items shall be proven by the type test certificate of the fume cupboard.
5.3.2.1 Containment (see EN 14175-3:2003, 5.3)
5.3.2.2 Robustness of containment (see EN 14175-3:2003, 5.4)
5.3.2.3 Air exchange efficiency (see EN 14175-3:2003, 5.5)
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SIST EN 14175-4:2005
EN 14175-4:2004 (E)
5.4 Face velocity test
5.4.1 Objectives
The aim of the face velocity test as part of the commissioning testing is to verify the face velocity pattern compared
to the type test result i
...