Schedule 4

FOURTH SCHEDULERegulation 2Threshold quantity of combustible dustPart 1ORGANIC SUBSTANCESFirst columnSubstanceSecond columnThreshold quantity of combustible dust derived from substance1.Alfalfa100 kilograms2.Apple3.Beetroot4.Carbon black5.Carrageenan6.Carrot7.Cereals (for example, barley, corn, oat, rice, rye and wheat) and their derivatives8.Charcoal9.Coal10.Cocoa11.Coconut and its derivatives12.Coffee13.Coke14.Cotton and its derivatives15.Egg white16.Garlic17.Grains (malted)18.Grains (spent)19.Grass20.Hops 21.Lemon peel or pulp22.Linseed23.Locust bean gum24.Milk and its derivatives25.Olive pellet26.Onion27.Parsley28.Peach29.Peanut30.Peat31.Potato and its derivatives32.Soot33.Soybean and its derivatives34.Spice 35.Sugar36.Sunflower seeds37.Tapioca38.Tea39.Tobacco40.Walnut41.Xanthan gum42.Yucca seeds43.Cellulose25 kilograms44.Cork45.WoodPart 2PLASTIC SUBSTANCESFirst columnSubstanceSecond columnThreshold quantity of combustible dust derived from substance1.Epoxy resin100 kilograms2.Ethylene-vinyl acetate copolymer3.Melamine4.Polyacrylamide5.Polyacrylonitrile6.Polyethylene7.Polypropylene8.Polyvinyl acetate9.Polyvinyl alcohol10.Polyvinyl butyral11.Polyvinyl chloride12.Terpene-phenol resin13.Urea-formaldehyde-cellulose14.Phenolic resin25 kilograms15.Polymethyl acrylatePart 3CHEMICAL SUBSTANCESFirst columnSubstanceSecond columnThreshold quantity of combustible dust derived from substance1.Adipic acid100 kilograms2.Ascorbic acid3.Calcium acetate4.Calcium stearate5.Carboxy methyl cellulose6.Dextrin7.Lactose8.Lead stearate9.Methyl-cellulose10.Paraformaldehyde11.Sodium ascorbate12.Sodium stearate13.Sulphur14.AnthraquinoneAny quantityPart 4METAL SUBSTANCESFirst columnSubstanceSecond columnThreshold quantity of combustible dust derived from substance1.Bronze100 kilograms2.Copper3.Iron4.Iron carbonyl5.Manganese6.Silicon7.Tantalum8.Titanium9.Zinc10.AluminiumAny quantity11.Magnesium12.Niobium[S 930/2024 wef 01/01/2025]