Of plastic film of a thickness not exceeding 40 micrometres

For use in civil aircraft

a width of 98 mm or more but not more than 170 mm, -a thickness of 15 µm or more but not more than 36 µm

zero transversal production direction (TD) shrinkage, -a total thickness of 8 μm or more, but not more than 40 μm, -a width of 15 mm or more, but not more than 900 mm, -a length of more than 200 m, but not more than 8 000 m, -an average pore size between 0,02 μm and 0,1 μm, -whether or not coated with surfactant, -whether or not coated on 1 or 2 sides with a ceramic layer of min 1 μm thickness or more, but not more than 5 μm, -whether or not coated on 1 or 2 sides with a sticky binder, PVdF type or similar of min 0,5 μm thickness or more, but not more than 5 μm

one microporous polyethylene layer between two microporous polypropylene layers and whether or not coated with aluminium oxide on both sides, -a width of 65 mm or more but not more than 170 mm, -a total thickness of 10 µm or more but not more than 30 µm, -a porosity of 25 % (vol.) or more but not more than 65 % (vol.)

Other