I.9Spraying or fogging systems and components therefor, as follows

a) Complete spraying or fogging systems, specially designed or modified for fitting to aircraft, lighter than air vehicles or UAVs, capable of delivering, from a liquid suspension, an initial droplet “VMD” of less than 50 microns at a flow rate of greater than two litres per minute.
b) Spray booms or arrays of aerosol generating units, specially designed or modified for fitting to aircraft, lighter than air vehicles or UAVs, capable of delivering, from a liquid suspension, an initial droplet “VMD” of less than 50 microns at a flow rate of greater than two litres per minute.
c) Aerosol generating units specially designed for fitting to systems that fulfil all the criteria specified in paragraphs 9.a and 9.b.
Technical Notes
Aerosol generating units are devices specially designed or modified for fitting to aircraft such as nozzles, rotary drum atomisers and similar devices.
This entry does not control spraying or fogging systems and components as specified in paragraph 8 above that are demonstrated not to be capable of delivering biological agents in the form of infectious aerosols.
Pending definition of international standards, the following guidelines should be followed:
Droplet size for spray equipment or nozzles specially designed for use on aircraft or UAVs should be measured using either of the following methods:
a. Doppler laser method
b. Forward laser diffraction method