Transport Classification: Aviation Regulated Liquid and Aviation Regulated Solid
Substances and mixtures destined for transport by air and designated as Transport Hazard Class 9 materials or those not classified as hazardous, may still classify as:
UN3334 Aviation Regulated Liquid
or
UN3335 Aviation Regulated Solid
…because ‘any material which has narcotic, noxious or other properties such that, in the event of spillage or leakage on an aircraft, extreme annoyance of discomfort could be caused to crew members so as to prevent the correct performance of assigned duties.’
This is an attribute that is very difficult to quantify and extremely subjective since individuals have different odour preferences.
For any Raw Material Items that have a high odour impact you can apply the Property STRONGRM by navigating to Modify a Raw Material then selecting the Properties tab and going to the Transport Hazards Property Group. If desired, it is possible to apply a Specific Concentration Limit using STRONGRM= where the material has a particularly low odour threshold. This will give an indication of high odour impact materials in any Composition they are used in and will declare the STRONGRM most odorous item in brackets in the UN Proper Shipping Name column of the table in Section 14 of the safety data sheet in relation to air transport, otherwise being undeclared as N.O.S. (Not otherwise specified.)
This is not yet enough to trigger UN3334 or UN3335. It is not possible to determine by calculation whether the Item or mixture has a noxious or narcotic odour as dilution and synergistic effects may reduce the apparent potency and can result in an acceptable characteristic profile. On this basis a human must make the judgement.
Following odour assessment, appropriately noxious items should have the Property STRONG applied to the Item. Navigate to Modify a Raw Material/Formulation, then select the Properties tab and go to the Transport Hazards Property Group.
Don’t forget that if your Item classifies as hazardous, then the UN number will relate to the hazard and STRONG will not be a deciding factor. UN3334 and UN3335 will only appear in Section 14 of the safety data sheet for a Transport Hazard Class 9 Item or an Item which does not classify as hazardous and only for air transport in the column headed ICAO TI. Note that to manually apply UN3334 or UN3335 to the Property TRANSID or IATAID will result in suboptimal calculation.
April 2025
