EN 4618:2009
(Main)Aerospace series - Aircraft internal air quality standards, criteria and determination methods
Aerospace series - Aircraft internal air quality standards, criteria and determination methods
This standard specifies requirements and determination methods for newly certificated commercial passenger aircraft programmes.
This standard applies to newly certificated commercial passenger aircraft programmes. It may also apply to current production aircraft if it does not carry significant penalties, i.e. if it can be shown to be technically feasible and economically justifiable.
This standard covers the period from first crew embarkation to last crew disembarkation.
NOTE 1 During embarkation and disembarkation, reduced temperatures in the cabin may be desirable due to increased metabolic activity of the occupants. In some ground cases, the aircraft environmental control system (ECS) may not be able to compensate for the external conditions influencing the cabin comfort conditions, such as open doors, extreme hot/cold ground/air temperatures or radiant heat. In this case, external air-conditioning systems, for example conditioned low-pressure ground air or high-pressure supply, may be used to supplement the aircraft ECS. If the temperature range stated in this standard is regularly exceeded (either above or below the stated range), changes to airline and/or airport procedures and/or aircraft design should be introduced.
NOTE 2 During ground operations, the external air quality may adversely influence the air quality within the aircraft cabin. Contamination produced as a result of servicing activities or ground operations vehicles may enter the aircraft directly, for example via open doors, and the ECS may not be able to effectively control contaminant levels in the cabin. Airline and airport operational procedures should be organised so as to avoid direct contamination of the cabin from these pollutant sources. If the contaminant ranges stated in this standard are regularly exceeded, changes to airline and/or airport procedures and/or aircraft design should be introduced.
Outside air quality levels would usually be regulated by national authorities.(...)
Luft- und Raumfahrt - Qualitätsstandards für Kabinenluft, Kriterien und Messverfahren
Série aérospatiale - Norme de qualité d'air intérieur pour les cabines d'avion, critères et méthodes d'évaluation
Aeronavtika - Standardi kakovosti za zrak v kabinah, merila in metode določanja
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Qualitätsstandards für Kabinenluft, Kriterien und MessverfahrenSérie aérospatiale - Norme de qualité d'air intérieur pour les cabines d'avion, critères et méthodes d'évaluationAerospace series - Aircraft internal air quality standards, criteria and determination methods49.095Oprema za potnike in oprema kabinPassenger and cabin equipment13.040.01Kakovost zraka na splošnoAir quality in generalICS:Ta slovenski standard je istoveten z:EN 4618:2009SIST EN 4618:2009en01-november-2009SIST EN 4618:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4618
September 2009 ICS 49.095 English Version
Aerospace series - Aircraft internal air quality standards, criteria and determination methods
Série aérospatiale - Norme de qualité d'air intérieur pour les cabines d'avion, critères et méthodes d'évaluation
Luft- und Raumfahrt - Qualitätsstandards für Kabinenluft, Kriterien und Messverfahren This European Standard was approved by CEN on 8 August 2009.
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 CEN 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 CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4618:2009: ESIST EN 4618:2009
Altitude corrections for volume concentrations . 28Annex B (informative)
Bacteria, fungi and viruses . 29Annex C (informative)
Technical information for bacteria, viruses and other particulate contamination removal . 31Annex D (informative)
Measurement method for micro-organisms . 33Annex E (informative)
Operative temperature and air velocity ranges . 37 SIST EN 4618:2009
Regulatory bodies may apply this standard or parts thereof. SIST EN 4618:2009
The presence of marker compounds in concentrations that exceed the cabin air quality comfort, health or safety limits set in the standard may indicate that maintenance, procedural or operational change or design change is required to bring the air quality back within the limits set in this standard. Several sources have been considered to identify contaminants produced during normal operation. The possible sources have been analysed to identify which chemical groupings are related to each one. At least one compound from each grouping identified for each potential source has been chosen as representative of that source.
Balanced across the chemical groupings of the potential contamination sources. The selected marker compounds may occur in several of the selected potential sources. A full list of all compounds considered is given for completeness. Some of the compounds were subsequently disregarded because they were: Expected to appear only in very low concentrations, and/or Have low toxicity for given TLVs, and/or Below the quantification limit of measurement method. Where this is the case is marked in Table 1. Additionally, while some compounds may be present in many of the identified potential sources, they are only relevant (under the guidelines given above) for some of the potential sources. In this case this is also marked in Table 1. The potential sources under consideration are described below: Bio-effluents – compounds produced by the occupants; Cabin Interior – compounds that may be used during cabin servicing and cleaning; Solvents – compounds that may be present in the cabin due to, for example, cabin furnishing off-gassing;
External Conditions – compounds likely to be present in the environment, specifically near the airport, either from natural or man made sources; Exhaust – compounds likely to be present in the engine or APU exhaust, which under certain environmental conditions may be ingested into the outside air intake; Oils, lubricants and hydraulic fluids – compounds present in these fluids, and/or their thermal breakdown products, that may enter the cabin under certain conditions; Fuel – compounds present in fuels that may enter the cabin under certain conditions. Contaminants indicative of engine/APU lubricant or fuel leaks would enter the cabin through the bleed air system. The bleed air system may also carry ingested exhaust fumes, hydraulic fluid leaks and environmental pollution in to the cabin. On the ground, exhaust fumes and environmental pollution may also enter through open aircraft doors.
Table 1 — Marker compounds and their potential sources in the cabin Category Group Compound CAS No. Bio- effluents Cabin Interior Solvents External ConditionsExhaust Oils, Lubricants & HydraulicsFuel Inorganic Compounds
Carbon Dioxide 124-38-9 ⌧
⌧ a ⌧ a
Carbon Monoxide a 630-08-0
⌧ ⌧ ⌧
Nitrogen Oxides b 10102-44-0
⌧ ⌧
Ozonea 10028-15-6
⌧
Inorganic / Organic Particles
Particles, aerosols
⌧ a ⌧ a, c
⌧ ⌧ ⌧ ⌧ Micro- organisms
⌧ a ⌧ a
⌧
Endotoxins
⌧ a ⌧ a
⌧
Aliphatic Compounds Alkanes Methane b 74-82-8 ⌧
⌧
⌧ Ketones Acetone a 67-64-1 d
⌧
⌧
Methyl Ethyl Ketone a 78-93-3
⌧
⌧
Aldehydes Acetaldehyde a75-07-0
⌧ ⌧ ⌧ Acrolein a 107-02-8
⌧ ⌧ ⌧ Formaldehyde a50-00-0
⌧ e ⌧
⌧ ⌧ ⌧ Halogen Derivatives Methylene Chloride a 74-87-3
⌧
⌧
continued SIST EN 4618:2009
Table 1 — Marker compounds and their potential sources in the cabin (concluded) Category Group Compound CAS No. Bio- effluents Cabin Interior Solvents External ConditionsExhaust Oils, Lubricants & HydraulicsFuel Aromatic Compounds
Benzene a 71-43-2
⌧
⌧ Tricresyl Phosphate b 1330-78-5
⌧
Toluene 108-88-3
⌧ a
⌧ ⌧ ⌧ Polycyclic Aromatic Hydrocarbons
Benzo (alpha) Pyrene b 50-32-8
⌧
⌧ Naphthalene b 91-20-3
⌧ ⌧ ⌧ a Identified compound linked to source as marker compound (measured), this may include aerosols, vapour phase and thermal decomposition products. b Identified compound linked to source but not as marker compound (no measurement), this may include aerosols, vapour phase and thermal decomposition products. c If ozone is present in the cabin it may react with plastics in the cabin to form particles; Reference: CONCISE INTERNATIONAL CHEMICAL ASSESSMENT DOCUMENT N° 5. d Acetone is normally produced only in very minor quantities by the human body. Some health problems do lead to significant synthesis of acetone, however this is not considered by this standard (reference to be provided). e If ozone is present in the cabin it may react with plastics in the cabin to synthesise formaldehyde; Reference: CONCISE INTERNATIONAL CHEMICAL ASSESSMENT DOCUMENT N° 5.
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