520 - 529 : WASTE DISPOSAL, DRAINAGE | ||
---|---|---|
520 | Waste Disposal Drainage (Grouped) | |
521 | Refuse, rubbish, garbage disposal | |
522 | Gaseous waste | |
523 | Sewage disposal foul drainage | |
524 | Petrol, chemical wastes | |
525 | Natural water drainage | |
526 | Internal drainage (above ground drainage) | |
527 | Below ground drainage including storage | |
528 | Other types of waste disposal, drainage | |
529 | Parts and accessories |