CEN/TS 17441:2020

SLOVENSKI STANDARD
01-junij-2020
Laboratorijska oprema - Sistemi prezračevanja v laboratorijih
Laboratory installations - Ventilation systems in laboratories
Laboreinrichtungen - Lufttechnik in Laboratorien
Installations de laboratoire - Systèmes de ventilation pour laboratoires
Ta slovenski standard je istoveten z: CEN/TS 17441:2020
ICS:
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TS 17441
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2020
TECHNISCHE SPEZIFIKATION
ICS 91.140.30; 71.040.10
English Version
Laboratory installations - Ventilation systems in
laboratories
Installations de laboratoire - Systèmes de ventilation Laboreinrichtungen - Lufttechnik in Laboratorien
pour laboratoires
This Technical Specification (CEN/TS) was approved by CEN on 27 January 2020 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17441:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Tasks of the ventilation system . 9
5 Design and construction of ventilation systems . 10
5.1 General . 10
5.2 Design criteria . 11
5.3 Air volumes . 12
5.4 Design parameter . 13
5.5 Airflow within the room . 15
5.6 Room air quality . 15
6 Requirements for supply air systems . 15
6.1 General . 15
6.2 Supply air system . 16
6.3 Ratio supply air to extract air . 16
7 Requirements for extract air systems . 16
7.1 Extract air layout . 16
7.2 Extract air ducts . 17
7.3 Arrestment and filter systems . 19
7.4 Exhaust fans . 19
7.5 Maintenance and repair. 19
7.6 Explosion protection . 19
8 Sound pressure level . 20
9 Ventilation systems in microbiology laboratories . 20
10 Ventilation system information and laboratory labelling . 20
Annex A (informative) National regulations on ventilation . 21
A.1 General . 21
A.2 France . 21
A.3 The Netherlands . 21
A.4 Germany . 21
A.5 Spain . 22
Bibliography . 23

European foreword
This document (CEN/TS 17441:2020) has been prepared by Technical Committee CEN/TC 332
“Laboratory equipment”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
Operation of ventilation systems in laboratory buildings or in individual laboratory rooms requires
particular care and attention due to its safety relevance. This applies for users of ventilation systems as
well as for operators of laboratory buildings.
This technical specification supports design, planning, execution and maintenance tasks of these
ventilation systems. A special expertise with regard to the operation and function of laboratories and
the effectiveness of technical laboratory equipment is required, particularly because of the many
possible interfaces for extract air equipment relevant to safety.
1 Scope
This document applies for the planning, design, installation and commissioning of ventilation systems
in laboratories. It also applies for scientific classrooms in schools when equipped with a ventilation
system.
The application of this document depends not on the term laboratory in its narrower sense but this
document also applies also for laboratory-related rooms in which work with dangerous or health
hazardous substances is performed.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 12128:1998, Biotechnology — Laboratories for research, development and analysis — Containment
levels of microbiology laboratories, areas of risk, localities and physical safety requirements
EN 12792:2003, Ventilation for buildings — Symbols, terminology and graphical symbols
EN 14175-2, Fume cupboards — Part 2: Safety and performance requirements
EN 14175-7, Fume cupboards — Part 7: Fume cupboards for high heat and acidic load
EN 14470-1, Fire safety storage cabinets — Part 1: Safety storage cabinets for flammable liquids
EN 14470-2, Fire safety storage cabinets — Part 2: Safety cabinets for pressurised gas cylinders
EN 16798-1, Energy performance of buildings — Ventilation for buildings — Part 1: Indoor environmental
input parameters for design and assessment of energy performance of buildings addressing indoor air
quality, thermal environment, lighting and acoustics — Module M1-6
EN 16798-3:2017, Energy performance of buildings — Ventilation for buildings — Part 3: For non-
residential buildings — Performance requirements for ventilation and room-conditioning systems
(Modules M5-1, M5-4)
CEN/TR 16798-4:2017, Energy performance of buildings — Ventilation for buildings — Part 4:
Interpretation of the requirements in EN 16798-3 — For non-residential buildings — Performance
requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12792 and the following apply.
For the different types of air in a laboratory or in a laboratory building EN 16798-3:2017, Table 6,
applies.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
laboratory
workspace with associated areas, such as access and support areas, with specific technical
requirements for which ventilation may be required
Note 1 to entry: In a laboratory, tasks are usually carried out during which possible hazards or potential
sources of nuisance, e.g. due to substances or procedures, can be kept under control. A ventilation system is
usually essential for such a task and can also be necessary for environmental control.
3.2
useable laboratory floor space
floor space of a laboratory room or a laboratory area; not included as useable laboratory floor space are
constructionally separated corridors and areas used for writing or analysis of results with a separated
ventilation
Note 1 to entry: Areas for writing or analysis of results can be considered to be separated from the useable
laboratory floor space e.g. by a suitable directed air flow.
3.3
extract air equipment
laboratory equipment that requires specified extract air volumes for its proper function, e.g. fume
cupboards, safety storage cabinets and local extract devices (see 3.9) or safety workbenches with
extract air connection
Note 1 to entry: Extract air equipment may need constant, intermitting or a continuously changing (hereinafter
referred to as “variable”) extracted air. Knowledge of all extract air equipment of a laboratory (see 3.4 to 3.17.) is
important for balancing the air volumes of the ventilation system.
3.4
fume cupboard
protective device to be ventilated by an induced flow of air through an adjustable working opening
— with an enclosure designed to limit the spread of airborne contaminants to operators and other
personnel outside the device,
— offering a degree of mechanical protection, and
— providing for the controlled release of airborne contaminants
Note 1 to entry: A fume cupboard is a ventilated enclosure complying with the requirements specified in
EN 14175-2.
[SOURCE: EN 14175-1:2003, 3.1]
3.5
pressure cascade
process whereby air flows from one area, which is maintained at a higher pressure, to another area at a
lower p
...