SID means the supplementary information document of which these Terms form part;
Plastic means material which contains as an essential ingredient a high polymer such as polyethylene terephthalate, high density polyethylene, Vinyl, low density polyethylene, polypropylene, polystyrene resins, multi-materials like acrylonitrile butadiene styrene, polyphenylene oxide, polycarbonate, Polybutylene terephthalate;
Stack means any point in a source designed to emit solids, liquids, or gases into the air, including a pipe or duct but not including flares.
Houseboat means watercraft primarily used as habitation and not used primarily as a means of transportation.
Bulkhead means an airtight structure separating the working chamber from free air or from another chamber under a lower pressure than the working pressure;