prEN 14175-3 rev

Fume cupboards - Part 3: Type test methods

This part of the European Standard EN 14175 specifies type test methods for the assessment of safety and performance of fume cupboards. Relevant requirements are specified in Part 2 of this European Standard.
For terms and their definitions EN 14175-1 applies. For safety and performance requirements of fume cupboards EN 14175-2 applies. For on-site test methods of fume cupboards EN 14175-4 applies. For the type testing and on-site testing of variable air volume (VAV) fume cupboards, EN 14175-6 applies in addition to this standard.
For the testing of microbiological safety cabinets EN 12469 applies.

Abzüge - Teil 3: Baumusterprüfverfahren

Sorbonnes - Partie 3 : Méthodes d'essai de type

La présente partie de la norme européenne EN 14175 spécifie les méthodes d'essai de type pour l'évaluation de la sécurité et des performances des sorbonnes. Des exigences pertinentes sont spécifiées dans la partie 2 de la présente Norme européenne.
Pour les termes et leurs définitions, l'EN 14175-1 s'applique. Pour les exigences de sécurité et de performances des sorbonnes, l'EN 14175-2 s'applique. Pour les méthodes d’essai sur site sur les sorbonnes, l’EN 14175-4 s’applique. Pour les essais de type et les essais sur site du volume d’air variable (VAV) des sorbonnes, l’EN 14175-6 s’applique en complément de la présente norme.
NOTE   La partie 4 de la présente Norme européenne est en préparation pour les méthodes d'essai sur site des sorbonnes.
Pour les essais des postes de sécurité microbiologique, l'EN 12469 s'applique.

Digestoriji - 3. del: Metode preskusa tipa

General Information

• Status: Not Published
• Publication Date: 02-May-2016
• ICS: 71.040.10 - Chemical laboratories. Laboratory equipment
• Technical Committee: CEN/TC 332 - Laboratory equipment
• Drafting Committee: CEN/TC 332/WG 4 - Fume cupboards
• Current Stage: 4098 - Decision to abandon - Enquiry
• Completion Date: 10-Jun-2016
• Ref Project: oSIST prEN 14175-3:2014 - Fume cupboards - Part 3: Type test methods

Relations

• Revises: EN 14175-3:2003 - Fume cupboards - Part 3: Type test methods
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2014
Digestoriji - 3. del: Metode preskusa tipa
Fume cupboards - Part 3: Type test methods
Abzüge - Teil 3: Baumusterprüfverfahren
Sorbonnes - Partie 3 : Méthodes d'essai de type
Ta slovenski standard je istoveten z: prEN 14175-3 rev
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
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2014
ICS 71.040.10 Will supersede EN 14175-3:2003
English Version
Fume cupboards - Part 3: Type test methods
Sorbonnes - Partie 3 : Méthodes d'essai de type Abzüge - Teil 3: Baumusterprüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 332.

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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

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

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14175-3 rev:2014 E
worldwide for CEN national Members.

prEN 14175-3:2014 (E)
Contents
page
Foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Test room and general test conditions . 5
4.1 Dimensions and construction . 5
4.2 Test room conditions . 5
4.3 Fume cupboard installation . 5
4.4 Test conditions . 6
5 Air flow tests . 6
5.1 Extract volume flow rate . 6
5.2 Face velocity . 7
5.3 Containment . 8
5.4 Robustness of containment . 13
5.5 Air exchange efficiency . 14
5.6 Pressure drop . 16
6 Sash tests . 16
6.1 Sash suspension test . 16
6.2 Sash displacement test . 16
6.3 Protection against splashes . 16
6.4 Sash stop and alarm test . 16
7 Air flow indicator tests . 17
8 Construction and materials tests . 17
9 Illuminance test . 17
10 Test report . 17
Annex A (informative) Sound tests . 19
Annex B (informative) Containment Factor and Protection Factor . 20
Bibliography . 21

prEN 14175-3:2014 (E)
Foreword
This document (prEN 14175-3:2014) has been prepared by Technical Committee CEN/TC 332 “Laboratory
Equipment”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14175-3:2003.
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 6: Variable air volume fume cupboards
 Part 7: Fume cupboards for high heat and acidic load
Part 5 ("Recommendations for installation and maintenance") has been published as Technical Specification
CEN/TS 14175-5.
Start of application
The start of application of this standard is [Date of publication]
EN 14175-3:2003-12 may be used in parallel until [Date of publication] + 12 months

prEN 14175-3:2014 (E)
1 Scope
This part of the European Standard EN 14175 specifies type test methods for the assessment of safety and
performance of fume cupboards. Relevant requirements are specified in Part 2 of this European Standard.
For terms and their definitions EN 14175-1 applies. For safety and performance requirements of fume cupboards
EN 14175-2 applies. For on-site test methods of fume cupboards EN 14175-4 applies. For the type testing and on-
site testing of variable air volume (VAV) fume cupboards, EN 14175-6 applies in addition to this standard.
For the testing of microbiological safety cabinets EN 12469 applies.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for
its application. For dated references, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.
EN 12665, Light and lighting — Basic terms and criteria for specifying lighting requirements
EN 13150:2001, Workbenches for laboratories — Dimensions, safety requirements and test methods
EN 14175-1:2003, Fume cupboards — Part 1: Vocabulary
EN 14175-2:2003, Fume cupboards — Part 2: Safety and performance requirements
EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-
section conduits running full — Part 1: General principles and requirements (ISO 5167-1:2003)
EN ISO 12569, Thermal performance of buildings and materials — Determination of specific airflow rate in
buildings — Tracer gas dilution method (ISO 12569:2012)
3 Terms and definitions
For the purposes of this European Standard, the definitions given in EN 14175-1:2003 and the following apply.
3.1
plane of sash
plane in the middle between the innermost and the outermost screen surfaces of that part of the sash forming the
upper boundary of the test sash opening.
Note to entry This definition replaces the definition given in EN 14175-1:2003, 5.4.
3.2
inner measurement plane
plane of sash at the type test opening, except where the plane of sash does not meet the work surface of the fume
cupboard. In the latter case, it is usually a non-vertical plane bounded;
 at the top by the lowest point of the upper edge of the type test opening in the plane of the sash;
 at the bottom by the uppermost point of the lower edge of the opening closest to the plane of sash;
 at the sides by the side edges of the opening.
Note 1 to entry See examples in Figures 1 and 2.
Note 2 to entry This definition replaces the definition given in EN 14175-1:2003, 7.7.
prEN 14175-3:2014 (E)
3.3
containment factor (C )
F
ratio of the calculated volume concentration of tracer gas in the workspace of the fume cupboard to the measured
concentration in the inner or outer measurement plane.
Note to entry The containment factor is not a constant value but depends on the extract volume flow rate and the measured
concentration of tracer gas.
3.4
protection factor (P )
F
ratio of the volume flow rate of the tracer gas to the measured volume flow rate of the tracer gas in the tidal
breathing flow
3.5
tidal breathing flow
volume flow rate of air moved into (or out of) human lungs during breathing
Note to entry For healthy adults, it is in the range of 6 l/min to 10 l/min. For the purposes of this standard, 10 l/min is used.
4 Test room and general test conditions
4.1 Dimensions and construction
The test room shall consist of an enclosure of cuboid shape, constructed of suitable materials, within a building or
laboratory. The internal width and length shall be not less than 4,0 m and the ceiling height not less than 2,7 m.
The ceiling and floor shall be level and the room shall be devoid of internal supports, internal walls or other
obstacles to the airflow.
4.2 Test room conditions
The room air temperature shall be (23 ± 3) °C. The make-up air temperature during measurements shall be room
air temperature ± 1 °C. Temperature gradients shall be avoided as far as possible. The make-up air shall be
supplied at a distance greater than 2 m from the front of the fume cupboard.
The test zone boundary shall extend approx. 1,5 m in front of the fume cupboard and approx. 1,0 m from the outer
sidewalls of the cupboard over the full room height.
Room extract air shall be extracted symmetrically on the opposite side to the make-up air supply and from outside
the test zone. The air speed shall be less than 0,1 m/s at the test zone boundaries. Care shall be taken regarding
uncontrolled air streams and draughts entering into the test room.
Any device the temperature of which exceeds 40 °C, except components which form part of the fume cupboard
and/or the test equipment, shall be located outside the test zone boundaries.
The air extracted from the test room shall be discharged to atmosphere in such a way as to prevent its re-
entrainment in the make-up air.
4.3 Fume cupboard installation
The fume cupboard shall be installed centrally on a wall with its opening facing away from the wall.
The test shall be carried out on the fume cupboard installed in the test room in accordance with the manufacturer's
installation instructions.
prEN 14175-3:2014 (E)
4.4 Test conditions
4.4.1 General
No person other than the operator(s) shall be present in the test room during the measurements. No person shall
remain in the test zone during the measurements.
There shall be no unnecessary obstructions or equipment within the test zone. No equipment other than that
necessary for the tests shall be in the fume cupboard.
Windows and doors of the test room shall remain closed during measurements.
NOTE Observance of all test conditions is crucial for reproducibility and comparability of the test results.
4.4.2 Test sash positions
4.4.2.1 Vertical sash fume cupboards
The sash shall be set to the height of 500 mm ± 1 % measured in the centre of the opening. If the maximum height
is less than 500 mm, the maximum operational sash opening shall be used and noted. If any additional opening is
used, this shall be noted in the test report.
For the testing of walk-in fume cupboards, the upper sash opening shall be used as the test sash position. The
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