Ships and marine technology - Ventilation of cargo spaces where vehicles with internal combustion engines are driven - Calculation of theoretical total airflow required (ISO 9785:2002)

This International Standard specifies methods of calculating the theoretical quantity of outdoor air required in cargo spaces of ships where vehicles with internal combustion engines are driven, in order to dilute the polluted air to within the permitted occupational exposure limits.
Annex A specifies average values of the amounts of pollutants in exhaust gases from vehicles with internal combustion engines driven in cargo spaces in ships.
Annex B gives general information and guidance as to good practice for the ventilation of cargo spaces in ships where vehicles with internal combustion engines may be driven.
Users of this International Standard should note that, while observing the requirements of the standard, they should at the same time ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned. Users should also refer to guidelines developed by the International Maritime Organization (IMO) contained in the Maritime Safety Committee Circular 729 (MSC Circ. 729), Guidelines and Recommendations for Ventilation systems in RO-RO Cargo Spaces.

Schiffe und Meerestechnik - Lüftung von Laderäumen, in denen Kraftfahrzeuge mit Verbrennungsmotoren betrieben werden dürfen - Berechnung des theoretisch benötigten Gesamt-Luftvolumenstroms (ISO 9785:2002)

Diese Norm legt Methoden für die Berechnung der theoretisch erforderlichen Außenluftmenge fest, für Laderäume auf Schiffen, in denen Fahrzeuge mit Verbrennungsmotoren betrieben werden, um durch die Zufuhr von Frischluft ein Ansteigen der Schadstoffkonzentration über die zulässigen Grenzwerte zu vermeiden.
Anhang A enthält Mittelwerte von Schadstoffen in Abgasen der in Schiffsladeräumen fahrenden Fahrzeuge mit Verbrennungsmotoren.
Im Anhang B werden allgemeine Informationen und Anleitungen zu anzuwendenden Verfahren für die Lüftung von Schiffsladeräumen gegeben, in denen Kraftfahrzeuge mit Verbrennungsmotoren fahren dürfen.
Anwender dieser Norm sollten berücksichtigen, dass bei Anwendung der in dieser Norm genannten Anforderungen gleichzeitig die Übereinstimmung mit gesetzlichen Anforderungen, Regeln und Vorschriften, die für das betreffende Schiff gelten können, sichergestellt sein sollte. Weitere Informationen wurden von der IMO ) erstellt, die im MSC Circ. 729, "Guidelines and Recommendations for Ventilation Systems in RO-RO Cargo Spaces", enthalten sind.

Navires et technologie maritime - Ventilation des espaces cargaison des navires dans lesquels des véhicules à moteur à combustion interne sont utilisés - Calcul du débit d'air total théorique exigé (ISO 9785:2002)

Ladje in pomorska tehnologija – Zračenje tovoru namenjenih prostorov, kjer se nahajajo motorna vozila – Izračun teoretične celotne količine potrebnega zraka (ISO 9785:2002)

General Information

Status
Published
Publication Date
14-Jul-2002
Withdrawal Date
30-Jan-2003
ICS
47.020.90 - Marine ventilation, air-conditioning and heating systems
Technical Committee
CEN/TC 300 - Sea-going vessels and marine technology
Drafting Committee
CEN/TC 300 - Sea-going vessels and marine technology
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
15-Jul-2002
Completion Date
15-Jul-2002
Ref Project
SIST EN ISO 9785:2004 - Ships and marine technology - Ventilation of cargo spaces where vehicles with internal combustion engines are driven - Calculation of theoretical total airflow required (ISO 9785:2002)

Overview

EN ISO 9785:2002 - Ships and marine technology: Ventilation of cargo spaces where vehicles with internal combustion engines are driven - specifies methods to calculate the theoretical outdoor airflow required to dilute vehicle exhaust in ship cargo spaces so airborne contaminants remain within permitted occupational exposure limits (OELs). It covers airflow calculation principles, pollutant data (Annex A) and good-practice guidance for cargo-space ventilation (Annex B). Users are also directed to IMO guidance (MSC Circ. 729) and any applicable statutory requirements.

Key topics and requirements

  • Airflow calculation approach
    • Supply airflow shall meet whichever is greater: statutory minimum air changes or the calculated outdoor-supply airflow needed to maintain OELs.
    • For normally polluted outdoor air: q_p = m / (a · c)
    • For highly polluted outdoor air: q_p = m / (a · (c − c_out))
    • Variables: m = pollutant emission per vehicle (mg/s); a = factor of dilution; c = OEL (mg/m3); c_out = pollutant concentration in outdoor air (mg/m3).
  • Volume basis
    • Use gross cargo-space volume (no deductions for frames, pillars, cargo). If lined/insulated, measure from the inside.
  • Pollutant data (Annex A)
    • Provides average emission values for different vehicle types (examples: larger trucks NO2 ≈ 36 mg/s; smaller trucks NO ≈ 3 mg/s and CO ≈ 50 mg/s; passenger cars CO ≈ 250–350 mg/s depending on speed/age and cold-start conditions).
  • Factors of dilution (clause 5)
    • Default values where purchaser does not specify: 0.8 (general cargo), 0.4 (car carriers), 0.8 (ferries with supply at one end and exhaust at the opposite end).
  • Purchaser responsibilities
    • Specify engine types, sizes, operational cycles and anticipated number of vehicles simultaneously operating in each working area.

Applications and users

  • Practical use cases:
    • Designing ventilation systems for RO‑RO decks, ferries and car carriers
    • Determining HVAC capacity and fresh-air intake for cargo spaces where vehicles may run
    • Risk assessment and operational planning for vehicle loading/unloading and on-board vehicle movement
  • Typical users:
    • Ship designers and naval architects
    • Marine HVAC and ventilation engineers
    • Ship operators, port engineers and safety officers
    • Regulatory compliance teams and classification societies

Related standards and guidance

  • IMO Maritime Safety Committee Circular 729 (MSC Circ. 729) - Guidelines and operational recommendations for ventilation systems in RO‑RO cargo spaces (referenced in EN ISO 9785:2002)
  • National statutory ventilation and occupational exposure regulations (users must ensure compliance in addition to the standard)

Using EN ISO 9785:2002 for ventilation calculations helps ensure crew safety, regulatory compliance and appropriately sized ventilation systems for vehicle-carrying cargo spaces.

Frequently Asked Questions

EN ISO 9785:2002 is a standard published by the European Committee for Standardization (CEN). Its full title is "Ships and marine technology - Ventilation of cargo spaces where vehicles with internal combustion engines are driven - Calculation of theoretical total airflow required (ISO 9785:2002)". This standard covers: This International Standard specifies methods of calculating the theoretical quantity of outdoor air required in cargo spaces of ships where vehicles with internal combustion engines are driven, in order to dilute the polluted air to within the permitted occupational exposure limits. Annex A specifies average values of the amounts of pollutants in exhaust gases from vehicles with internal combustion engines driven in cargo spaces in ships. Annex B gives general information and guidance as to good practice for the ventilation of cargo spaces in ships where vehicles with internal combustion engines may be driven. Users of this International Standard should note that, while observing the requirements of the standard, they should at the same time ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned. Users should also refer to guidelines developed by the International Maritime Organization (IMO) contained in the Maritime Safety Committee Circular 729 (MSC Circ. 729), Guidelines and Recommendations for Ventilation systems in RO-RO Cargo Spaces.

This International Standard specifies methods of calculating the theoretical quantity of outdoor air required in cargo spaces of ships where vehicles with internal combustion engines are driven, in order to dilute the polluted air to within the permitted occupational exposure limits. Annex A specifies average values of the amounts of pollutants in exhaust gases from vehicles with internal combustion engines driven in cargo spaces in ships. Annex B gives general information and guidance as to good practice for the ventilation of cargo spaces in ships where vehicles with internal combustion engines may be driven. Users of this International Standard should note that, while observing the requirements of the standard, they should at the same time ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned. Users should also refer to guidelines developed by the International Maritime Organization (IMO) contained in the Maritime Safety Committee Circular 729 (MSC Circ. 729), Guidelines and Recommendations for Ventilation systems in RO-RO Cargo Spaces.

EN ISO 9785:2002 is classified under the following ICS (International Classification for Standards) categories: 47.020.90 - Marine ventilation, air-conditioning and heating systems. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN ISO 9785:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-september-2004
/DGMHLQSRPRUVNDWHKQRORJLMD±=UDþHQMHWRYRUXQDPHQMHQLKSURVWRURYNMHUVH
QDKDMDMRPRWRUQDYR]LOD±,]UDþXQWHRUHWLþQHFHORWQHNROLþLQHSRWUHEQHJD]UDND
,62
Ships and marine technology - Ventilation of cargo spaces where vehicles with internal
combustion engines are driven - Calculation of theoretical total airflow required (ISO
9785:2002)
Schiffe und Meerestechnik - Lüftung von Laderäumen, in denen Kraftfahrzeuge mit
Verbrennungsmotoren betrieben werden dürfen - Berechnung des theoretisch benötigten
Gesamt-Luftvolumenstroms (ISO 9785:2002)
Navires et technologie maritime - Ventilation des espaces cargaison des navires dans
lesquels des véhicules a moteur a combustion interne sont utilisés - Calcul du débit d'air
total théorique exigé (ISO 9785:2002)
Ta slovenski standard je istoveten z: EN ISO 9785:2002
ICS:
47.020.90 /DGLMVNLSUH]UDþHYDOQL Marine ventilation, air-
NOLPDWVNLLQRJUHYDOQLVLVWHPL conditioning and heating
systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 9785
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2002
ICS 47.020.90
English version
Ships and marine technology - Ventilation of cargo spaces
where vehicles with internal combustion engines are driven -
Calculation of theoretical total airflow required (ISO 9785:2002)
Navires et technologie maritime - Ventilation des espaces Schiffe und Meerestechnik - Lüftung von Laderäumen, in
cargaison des navires dans lesquels des véhicules à denen Kraftfahrzeuge mit Verbrennungsmotoren betrieben
moteur à combustion interne sont utilisés - Calcul du débit werden dürfen - Berechnung des theoretisch benötigten
d'air total théorique exigé (ISO 9785:2002) Gesamt-Luftvolumenstroms (ISO 9785:2002)
This European Standard was approved by CEN on 30 May 2002.
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,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9785:2002 E
worldwide for CEN national Members.

CORRECTED  2002-09-18
Foreword
This document (EN ISO 9785:2002) has been prepared by Technical Committee ISO/TC 8
"Ships and marine technology" in collaboration with Technical Committee CEN/TC 300 "Sea-
going vessels and marine technology", 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 January 2003, and conflicting national
standards shall be withdrawn at the latest by January 2003.
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, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
Endorsement notice
The text of ISO 9785:2002 has been approved by CEN as EN ISO 9785:2002 without any
modifications.
INTERNATIONAL ISO
STANDARD 9785
Second edition
2002-07-15
Ships and marine technology — Ventilation
of cargo spaces where vehicles with
internal combustion engines are driven —
Calculation of theoretical total airflow
required
Navires et technologie maritime — Ventilation des espaces cargaison des
navires dans lesquels des véhicules à moteur à combustion interne sont
utilisés — Calcul du débit d'air total théorique exigé

Reference number
ISO 9785:2002(E)
©
ISO 2002
ISO 9785:2002(E)
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©
ii ISO 2002 – All rights reserved

ISO 9785:2002(E)
Contents Page
1 Scope . 1
2 Terms and definitions . 1
3 Airflow calculation . 1
4 Pollution from vehicles . 3
5 Factors of dilution . 3
Annexes
A Pollutants from vehicles in cargo spaces in ships. 4
B General information and guidance as to good practice . 8
©
ISO 2002 – All rights reserved iii

ISO 9785:2002(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 9785 was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 3, Piping and machinery.
This second edition cancels and replaces the first edition (ISO 9785:1990), which was revised for continued
consistency with International Marine Organization provisions for calculating required ventilation in cargo spaces
where vehicles with internal combustion engines may be driven.
Annex A forms a normative part of this International Standard. Annex B is for information only.
©
iv ISO 2002 – All rights reserved

ISO 9785:2002(E)
Introduction
The purpose of this International Standard is to ensure that exposure to substances hazardous to health should be
kept as low as is reasonably practicable in work areas in cargo spaces in ships. This can, as a rule, be achieved by
limiting exhaust gas emissions as far as possible (by controlling the traffic) and by providing a high flow of air in the
cargo spaces. For further information and guidance regarding good practice, please refer to recent guidelines
developed by the International Maritime Organization which are contained in the IMO Maritime Safety Committee
Circular 729 (MSC Circ. 729), Guidelines and Operational Recommendations for Ventilation Systems in RO-RO
Cargo Spaces.
©
ISO 2002 – All rights reserved v

INTERNATIONAL STANDARD ISO 9785:2002(E)
Ships and marine technology — Ventilation of cargo spaces where
vehicles with internal combustion engines are driven — Calculation
of theoretical total airflow required
1 Scope
This International Standard specifies methods of calculating the theoretical quantity of outdoor air required in cargo
spaces of ships where vehicles with internal combustion engines are driven, in order to dilute the polluted air to within
the permitted occupational exposure limits.
Annex A specifies average values of the amounts of pollutants in exhaust gases from vehicles with internal
combustion engines driven in cargo spaces in ships.
Annex B gives general information and guidance as to good practice for the ventilation of cargo spaces in ships
where vehicles with internal combustion engines may be driven.
Users of this International Standard should note that, while observing the requirements of the standard, they should
at the same time ensure compliance with such statutory requirements, rules, and regulations as may be applicable to
the individual ship concerned. Users should also refer to guidelines developed by the International Maritime
Organization (IMO) contained in the Maritime Safety Committee Circular 729 (MSC Circ. 729), Guidelines and
Recommendations for Ventilation systems in RO-RO Cargo Spaces.
2 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
2.1
cargo space
space used for cargo where vehicles may be driven
2.2
occupational exposure limit
highest airborne concentrations averaged over a specified period of time (time-weighted average or TWA) of
substances hazardous to health for employees at work
NOTE An occupational exposure limit refers either to a long-term exposure limit or to a short-term exposure limit as determined
by the appropriate authority.
2.3
working area
area occupied by employees at work
3 Airflow calculation
3.1 Volume of space
The volume of total cargo spaces shall be the gross volume with no deduction for the cargoes or for frames, webs,
pillars, ducts, etc. In the case of lining or insulation of cargo spaces, the volume shall be calculated from the inside of
the lining or insulation.
©
ISO 2002 – All rights reserved 1

ISO 9785:2002(E)
3.2 Supply airflow
3.2.1 General
The outdoor-supply airflow to the cargo spaces shall be calculated using whichever of the following criteria gives the
highest value:
— minimum number of air changes according to applicable statutory requirements;
— required outdoor-supply airflow to maintain the occupational-exposure limit-value.
3.2.2 Supply airflow to maintain the occupational-exposure-limit value
3.2.2.1 Introduction
The sum of the required outdoor-supply airflows per vehicle in operation to maintain the occupational-exposure-limit
value is calculated in accordance with 3.2.2.2 or 3.2.2.3 for normally polluted outdoor air or highly polluted outdoor
air, respectively.
3.2.2.2 Normally polluted outdoor air
The required outdoor-supply airflow, q , per vehicle in operation for normally polluted outdoor air, in cubic metres per
p
second (m /s), is given by the equation
q
m
q =
p
ac
where
q is the pollution per vehicle in operation, in milligrams per second (see clause 4);
m
a is the factor of dilution (see clause 5);
c is the occupational-exposure-limit value, in milligrams per cubic metre.
(See typical examples of application in B.2.)
NOTE The pollution contents of normally polluted outdoor air can be taken to be less than 1/40 of the occupational-exposure-
limit value.
3.2.2.3 Highly polluted outdoor air
The required outdoor-supply airflow, q , per vehicle in operation for highly polluted outdoor air, in cubic metres per
p
second, is given by the equation:
q
m
q =
p
�
a(c−c )
where
q , ac and are as defined in 3.2.2.2;
m
�
c is the content of the pollutant in question in outdoor air, in milligrams per cubic metre.
©
2 ISO 2002 – All rights reserved

ISO 9785:2002(E)
4 Pollution from vehicles
The purchaser
...

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The EN ISO 9785:2002 standard plays a crucial role in ensuring the safety and efficiency of ventilation systems within maritime cargo spaces dedicated to vehicles with internal combustion engines. This International Standard presents a systematic approach to calculating the theoretical total airflow required to dilute polluted air to acceptable levels, thus safeguarding occupational exposure limits for individuals working in these environments. One of the standard's significant strengths lies in its comprehensive methodology for assessing outdoor air requirements. By specifying precise mathematical calculations, EN ISO 9785:2002 enables ship operators to maintain air quality in cargo spaces, contributing to healthier working conditions onboard. Furthermore, the inclusion of Annex A enhances the standard's practicality by providing average pollutant values found in exhaust gases from internal combustion engines. This data is invaluable for operators who need to tailor specific ventilation solutions tailored to actual pollutant levels. Annex B adds further depth to the standard by offering general guidance and recommendations for best practices in ventilation systems. This is particularly relevant as it encourages proactive measures for risk management based on established best practices. Encouraging consistent adherence to good ventilation practices not only enhances safety but also fosters a culture of compliance with environmental standards within the shipping industry. The relevance of EN ISO 9785:2002 cannot be overstated, especially in the context of international maritime operations. As global trade expands and environmental regulations become more stringent, this standard is essential in helping maritime stakeholders align with the requirements set forth by the International Maritime Organization (IMO) and other regulatory bodies. In conclusion, the EN ISO 9785:2002 standard provides a robust framework for the calculation of airflow requirements in ship cargo spaces. Its methodical approach, supplemented by informative annexes, equips maritime professionals with the tools necessary to ensure efficient ventilation systems, thereby promoting both occupational safety and compliance with environmental regulations.

La norme EN ISO 9785:2002 définit des méthodes de calcul de la quantité théorique d'air extérieur nécessaire dans les espaces de chargement des navires où des véhicules à moteur à combustion interne sont transportés. Cette norme est cruciale pour garantir la dilution de l'air pollué, maintenant ainsi les niveaux d'exposition professionnelle dans des limites permises. Parmi les points forts de cette norme, l'Annexe A présente des valeurs moyennes sur les quantités de polluants dans les gaz d'échappement des véhicules, offrant ainsi des données essentielles pour les calculs d'aération. L'Annexe B propose des recommandations précieuses sur les bonnes pratiques à suivre pour la ventilation des espaces de chargement, renforçant encore davantage la pertinence de la norme dans le cadre maritime. La norme est particulièrement pertinente pour les professionnels du secteur maritime, car elle leur permet de garantir la sécurité des opérations en respectant les limites d'exposition au risque de pollution. En intégrant ces méthodes de calcul, les utilisateurs veillent non seulement à la sécurité des employés, mais également à la conformité avec les exigences légales applicables, telles que celles établies par l'Organisation Maritime Internationale (OMI). En résumé, la norme EN ISO 9785:2002 joue un rôle fondamental dans la gestion de la ventilation des espaces de cargaison dans les navires, garantissant à la fois la sécurité et le respect des réglementations en matière de pollution, ce qui en fait un document indispensable pour l'industrie maritime.

EN ISO 9785:2002 표준은 내연 기관이 장착된 차량이 운전되는 화물 공간에서 필요한 이론적 공기의 총량을 계산하는 방법을 규정하고 있습니다. 이 표준의 범위는 선박의 화물 공간에서 오염된 공기를 희석하기 위해 필요한 외부 공기의 양을 산출하는 데 중점을 두고 있으며, 직업적 노출 한도를 준수하는 데 필수적인 요소입니다. 이 표준의 강점은 두 가지 주요 부속서에 있습니다. 부속서 A에서는 내연 기관을 장착한 차량의 배출 가스에서 나오는 오염 물질의 평균값을 제시하며, 이는 현장 작업자들이 오염 물질의 유형과 농도를 효과적으로 이해하고 관리할 수 있도록 돕습니다. 부속서 B는 내연 기관 차량이 운전되는 화물 공간의 환기에 대한 일반적인 정보 및 모범 사례를 제공합니다. 이는 선박 운항에 있어 실질적인 지침을 제공함으로써, 안전하고 효율적인 운영을 가능하게 합니다. EN ISO 9785:2002 표준은 특히 내연 기관 차량과 관련된 공기 질 관리에 있어 중요한 지침을 제시합니다. 선박 운영자들은 이 표준을 준수함으로써 법적 요구 사항 및 규정을 동시에 충족시켜야 하며, 국제 해사 기구(IMO)의 권고사항도 함께 참고해야 합니다. 이 표준은 선박의 안전성을 높이고, 작업 환경을 개선하는 데 중대한 역할을 하므로, 해양 산업 관계자들에게 매우 관련성이 높습니다.

Die EN ISO 9785:2002 ist ein entscheidendes Dokument im Bereich der Schiffs- und Marinetechnologie, das sich speziell mit der Belüftung von Laderäumen befasst, in denen Fahrzeuge mit Verbrennungsmotoren betrieben werden. Die Norm legt Methoden zur Berechnung der theoretischen Menge an Außenluft fest, die erforderlich ist, um die verschmutzte Luft in den Laderäumen auf ein Niveau zu bringen, das den zulässigen Grenzwerten für die berufliche Exposition entspricht. Dies ist besonders relevant für die Sicherheit und Gesundheit der Besatzung sowie für den Umweltschutz. Ein herausragender Aspekt der Norm ist Annex A, der Durchschnittswerte der Schadstoffmengen in den Abgasen von Fahrzeugen mit Verbrennungsmotoren enthält. Diese Informationen sind äußerst wertvoll für die praktische Anwendung, da sie Nutzern eine Grundlage bieten, um fundierte Entscheidungen hinsichtlich der Belüftungssysteme zu treffen. Darüber hinaus bietet Annex B hilfreiche allgemeine Informationen und Leitlinien zur besten Praxis für die Belüftung in Laderäumen von Schiffen, die einen zusätzlichen Nutzen für Anwender darstellt. Die Relevanz der EN ISO 9785:2002 kann nicht überbetont werden, da sie nicht nur zur Einhaltung gesetzlicher Anforderungen beiträgt, sondern auch die Gesamtsicherheit an Bord verbessert. Die Nutzer werden zwar ermutigt, die Anforderungen dieser Norm zu beachten, sollten jedoch auch sicherstellen, dass sie alle relevanten gesetzlichen Vorgaben und Regelungen einhalten, die für das jeweilige Schiff von Bedeutung sind. Darüber hinaus wird auf die Richtlinien der International Maritime Organization (IMO) verwiesen, die eine ergänzende Perspektive bieten und sicherstellen, dass die Belüftungssysteme auf das höchste Niveau der Sicherheit und Effizienz abgeglichen sind. Insgesamt zeigt die EN ISO 9785:2002 eine klare Notwendigkeit und Stärke in der Schaffung von Standards für den sicheren Betrieb von Fahrzeugen mit Verbrennungsmotoren auf Schiffen. Sie fördert nicht nur die Gesundheit und Sicherheit der Besatzung, sondern trägt auch zur Umweltverantwortung in der maritimen Industrie bei.

EN ISO 9785:2002は、船舶と海洋技術における重要なスタンダードであり、内部燃焼エンジンを搭載した車両が運転される貨物室の換気に対する理論的な外部空気量の計算方法を規定しています。この国際標準は、作業場での公認された曝露限界内に大気汚染物質を希釈するために必要な外気の量を算出する手法を提供します。 このスタンダードの強みは、内部燃焼エンジンを持つ車両が貨物室で利用される際の具体的な換気要件を明確に示している点です。付属書Aでは、船舶の貨物室における内部燃焼エンジン車両の排気ガス中の汚染物質の平均値が提示されており、具体的な数値に基づく実践的な換気設計が可能になります。さらに付属書Bでは、良好な実践に関する一般的な情報と指針が示されており、実務者が安全かつ効率的な換気ソリューションを導入するための助けになります。 EN ISO 9785:2002は、法的要件や規則の遵守が求められる中で、船舶の特定の艦船について必要となる規定に従いながら、適切な換気が行われることを促進します。また、国際海事機関（IMO）が発行した海上安全委員会循環文書729（MSC Circ. 729）に記載されたガイドラインへの参照も奨励されています。このように、スタンダードは単なる公式文書にとどまらず、実際の運用において非常に関連性の高い、実務的な価値を提供しています。 全体として、EN ISO 9785:2002は、安全で効率的な船舶の運営に寄与する不可欠な規範であり、内部燃焼エンジンを搭載した車両の貨物室における換気管理のための信頼性の高い基準となっています。