SIST EN ISO 15138:2001

SLOVENSKI STANDARD
01-junij-2001
Petroleum and natural gas industries - Offshore production installations - Heating,
ventilation and air-conditioning (ISO 15138:2000)
Petroleum and natural gas industries - Offshore production installations - Heating,
ventilation and air-conditioning (ISO 15138:2000)
Erdöl- und Erdgasindustrie - Offshore-Produktionsanlagen - Heizung, Lüftung und
Klimatisierung (ISO 15138:2000)
Industries du pétrole et du gaz naturel - Installations en mer - Chauffage, ventilation et
climatisation (ISO 15138:2000)
Ta slovenski standard je istoveten z: EN ISO 15138:2000
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15138
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2000
ICS 75.180.20
English version
Petroleum and natural gas industries - Offshore production
installations - Heating, ventilation and air-conditioning (ISO
15138:2000)
Industries du pétrole et du gaz naturel - Installations en Erdöl- und Erdgasindustrie - Offshore-Produktionsanlagen -
mer - Chauffage, ventilation et climatisation (ISO Heizung, Lüftung und Klimatisierung (ISO 15138:2000)
15138:2000)
This European Standard was approved by CEN on 26 October 2000.
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 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 translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
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© 2000 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15138:2000 E
worldwide for CEN national Members.

Page 2
CORRECTED  2003-06-04
Foreword
This document (EN ISO 15138:2000) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 "Materials, equipment and offshore
structures for petroleum and natural gas industries", the secretariat of which is held by
AFNOR.
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 May 2001, and conflicting national
standards shall be withdrawn at the latest by May 2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
Kingdom.
Endorsement notice
The text of ISO 15138:2000 has been approved by CEN as EN ISO 15138:2000 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).

Page 3
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This 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 listed hereafter. For dated references, subsequent amendments to or revisions
of any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications,
indicated by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 8861 1998 Shipbuilding - Engine-room EN ISO 8861 1998
ventilation in diesel-engined
ships - Design requirements and
basis of calculations
INTERNATIONAL ISO
STANDARD 15138
First edition
2000-11-01
Petroleum and natural gas industries —
Offshore production installations —
Heating, ventilation and air-conditioning
Industries du pétrole et du gaz naturel — Installations en mer —
Chauffage, ventilation et climatisation
Reference number
ISO 15138:2000(E)
©
ISO 2000
ISO 15138:2000(E)
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ii © ISO 2000 – All rights reserved

ISO 15138:2000(E)
Contents Page
Foreword.iv
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Abbreviated terms .2
5 Design .3
5.1 Introduction.3
5.2 Development of design basis.6
5.3 System design — General .10
5.4 Area-specific system design .11
Annex A (informative) Guidance to clause 5 Design.14
Annex B (informative) Equipment and bulk selection.41
Annex C (informative) Installation and commissioning guidance .61
Annex D (informative) Operation and maintenance.66
Annex E (informative) Data sheets .69
Annex F (informative) Flange standard.101
Bibliography.104
ISO 15138:2000(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 15138 was prepared by Technical Committee ISO/TC 67, Materials, equipment and
offshore structures for petroleum and natural gas industries, Subcommittee SC 6, Processing equipment and
systems.
Annexes A through F of this International Standard are for information only.
iv © ISO 2000 – All rights reserved

INTERNATIONAL STANDARD ISO 15138:2000(E)
Petroleum and natural gas industries — Offshore production
installations — Heating, ventilation and air-conditioning
1 Scope
This International Standard specifies requirements and provides guidance for design, testing, installation and
commissioning of heating, ventilation, air-conditioning and pressurization systems and equipment on all offshore
production installations for the petroleum and natural gas industries which are:
� new and existing;
� normally occupied by personnel and not normally occupied by personnel;
� fixed or floating but registered as an offshore production installation.
NOTE For installations that could be subject to "Class" or "IMO/MODU Codes & Resolutions", the user is referred to HVAC
requirements under these rules and resolutions. Should these requirements be of a lesser degree than those being considered
for a fixed installation, then this International Standard, i.e. requirements for fixed installation, should be utilized.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 8861, Shipbuilding — Engine-room ventilation in diesel-engined ships — Design requirements and basis of
calculations.
IEC 60079-10, Electrical apparatus for explosive gas atmospheres — Part 10: Classification of hazardous areas.
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
displacement ventilation
movement of air within a space in piston- or plug-type motion
NOTE No mixing of room air occurs in ideal displacement flow, which is desirable for removing pollutants generated within
aspace.
3.2
fixed offshore installation
all facilities located and installed on fixed offshore structures, which are provided to extract oil and gas
hydrocarbons from subsea oil and gas reservoirs
ISO 15138:2000(E)
3.3
fixed offshore structure
structure permanently fixed to or located on the sea bed, including moored ships and hulls, which is held in position
by anchors or tensioned cables and is provided to (structurally) support topsides facilities
NOTE Vessels and drilling rigs, etc. which are in transit or engaged in exploration and appraisal activities are specifically
excluded from this definition.
3.4
fugitive emission
emission which is always present on a molecular scale from all potential leak sources in a plant under normal
operating conditions
NOTE As a practical interpretation, a fugitive emission is one which cannot be detected by sight, hearing or touch but may
be detected using bubble-test techniques or tests of a similar sensitivity.
3.5
open area
area in an open-air situation where vapours are readily dispersed by wind
NOTE T
...