PART B
Unless falling in Part A of this section, melting, including making alloys, of non ferrous metals (other than tin or any alloy which in molten form contains 50 per cent or more by weight of tin) including recovered products, refining foundry casting, etc. in an installation which has a design holding capacity of less than 5 tonnes.
The separation of copper, aluminium, magnesium or zinc from mixed scrap by differential heating.
The heating in a furnace or any other application of any non-ferrous metal or non-ferrous metal alloy for the purpose of removing grease oil or any other non-metallic contaminant, including such operations as the removal by heat of plastic or rubber covering from scrap cable if not related to another activity described in this Part; but an activity does not fall within this paragraph if–
it involves the use of one or more furnaces or other appliances the primary combustion chambers of which have in aggregate a net rated thermal input of less than 0.2 megawatts; and
it does not involve the removal by heat of plastic or rubber covering from scrap cable or of any asbestos contaminant.
Melting zinc or a zinc alloy in conjunction with a galvanising activity at a rate not exceeding 20 tonnes per day.
Melting zinc, aluminium or magnesium or an alloy of one or more of these metals in conjunction with a die-casting activity at a rate not exceeding 20 tonnes per day.
Interpretation of Part B
In this Part, “net rated thermal input” has the same meaning as in Section 1.1
Interpretation of Section 2.2
1. In this Section, “non-ferrous metal alloy” and cognate expressions mean an alloy which is not a ferrous alloy, as defined in Section 2.1.
2. Nothing in paragraphs (c) to (h) of Part A or in Part B of this Section shall be taken to prescribe the activities of hand soldering, flow soldering or wave soldering.