Annex A(Clause 3.1.8)

NBC 2016 (SP 7:2016) Volume 1

2016 · PDF page 323

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Calorific Values of Common Materials

A-1 The calorific values of some common materials are given in Table 9 for guidance.

Table 9 Calorific Values of Common Materials(Clause A-1)
Sl No.	Material	Calorific Value $(×10^3 \text{ kJ/kg})^{1)}$	Wood Equivalent(kg/kg)
(1)	(2)	(3)	(4)
i) Solid Fuels
	a) Anthracite	28.6	1.66
	b) Bituminous coal	30.8	1.75
	c) Charcoal	28.4	1.61
	d) Coke (average)	27.5	1.56
	e) Peat	20.9	1.19
	f) Sub-bituminous coal	22.0	1.25
	g) Woods (hard or softwood)	17.6	1.00
ii) Hydrocarbons
	a) Benzene	39.6	2.25
	b) Butane	47.1	2.68
	c) Ethane	49.1	2.79
	d) Ethylene	47.7	2.71
	e) Fuel oil	41.6	2.36
	f) Gas oil	42.9	2.44
	g) Hexane	44.9	2.55
	h) Methane (natural gas)	52.8	3.00
	j) Octane	45.3	2.58
	k) Paraffin	39.6-44.0	2.3-2.5
	m) Pentane	46.0	2.61
	n) Propane	47.3	2.69
	p) Propylene	46.2	2.63
iii) Alcohols
	a) Ethyl alcohol	28.4	1.61
	b) Methyl alcohol	21.1	1.20
	c) Propyl alcohol	31.9	1.81
iv) Polymers
	a) Casein	23.1	1.31
	b) Cellulose	16.5	0.94
	c) Cellulose acetate	17.8	1.01
	d) Polyethylene	48.4	2.75
	e) Polypropylene	48.4	2.75
	f) Polystyrene	41.8	2.38
	g) Polyvinylchloride	20.9	1.19
	h) Polymethyl methacrylate	24.6	1.40
	j) Polyurethane	35.2	2.00
	k) Polyamide (nylon)	22.0	1.25
	m) Polyester	22.0	1.25

Table 9 — (Concluded)
(1)	(2)	(3)	(4)
v)	Common Solids
	a) Asphalt	38.3	2.13
	b) Bitumen	33.4	1.90
	c) Carbon	32.1	1.83
	d) Cotton (dry)	15.8	0.90
	e) Flax	14.3	0.81
	f) Furs and skins	18.7	1.06
	g) Hair (animal)	20.9	1.19
	h) Leather	17.6	1.00
	j) Ozokerite (wax)	43.3	2.46
	k) Paper (average)	15.4	0.88
	m) Paraffin wax	40.9	2.33
	n) Pitch	33.0	1.88
	p) Rubber	37.4	2.13
	q) Straw	13.2	0.75
	r) Tallows	37.6	2.14
	s) Tan bark	20.9	1.19
	t) Tar (bituminous)	35.2	2.00
	u) Wool (raw)	21.6	1.23
	w) Wool (scoured)	19.6	1.11
vi)	Foodstuffs
	a) Barley	14.1	0.80
	b) Bran	11.0	0.63
	c) Bread	9.9	0.56
	d) Butter	29.5	1.68
	e) Cheese (cheddar)	18.1	1.03
	f) Corn meal	14.1	0.80
	g) Flour	14.1	0.80
	h) Margarine	29.5	1.68
	j) Oatmeal	15.8	0.90
	k) Rice	13.9	0.79
	m) Soya been flour	16.1	0.91
	n) Sugar	15.4	0.88
	p) Whole wheat	14.3	0.81
vii)	Miscellaneous
	a) Acetone	29.7	1.69
	b) Acetaldehyde	25.1	1.43
	c) Formaldehyde	17.6	1.00
	d) Hydrogen	134.2	7.63
	e) Magnesium	24.0	1.36
1) 1 kJ is approximately equal to 1 Btu so the figures in the tables are also equivalent to Btu/kg.

Annexb

(Clause 3.1.8)

BROAD CLASSIFICATION OF INDUSTRIAL OCCUPANCIES INTO DIFFERENT DEGREE OF HAZARD

Light Hazard	Moderate Hazard	High Hazard
Abrasive Manufacturing PremisesAerated Water FactoriesAgarbatti ManufacturingAreca Nut Slicing and/or Betel nut FactoriesAnalytical and/or Quality Control LaboratoriesAsbestos Steam Packing and Lagging ManufacturingBattery Charging/Battery Service StationsBattery ManufacturingBreweriesBrick WorksCanning FactoriesCardamom FactoriesCement Factories and/or Asbestos or Concrete Products ManufacturingCeramic Factories and Crockery and Stoneware Pipe ManufacturingClay WorksClock and Watch ManufacturingCoffee Curing Roasting and Grinding PremisesCondensed Milk Factories, Milk Pasteurising Plant and DairiesConfectionery ManufacturingElectric Generating Houses (Hydro electric)Electric Lamps (Incandescent and Fluorescent) and TV Picture Tube ManufacturingElectro Plating WorksEngineering Workshops	Aluminium FactoriesAtta and Cereal GrindingBakeries and Biscuit FactoriesBeedi FactoriesBobbin FactoriesBookbinders, Envelopes and Paper Bag ManufacturingCable ManufacturingCamphor BoilingCandle WorksCarbon Paper/Typewriter Ribbon ManufacturingCardboard Box ManufacturingCarpenters, Wood Wool and Furniture ManufacturingCarpet and Durries FactoriesCashewnut FactoriesChemical Manufacturing using raw materials having flash points above 23°C Cigar and Cigarette FactoriesCoir FactoriesCoir Carpets, Rugs, Tobacco, Hides and Skin PressesCold Storage PremisesCork Products ManufacturingDry Cleaning, Dyeing and Laundries.Electric Substations/Distribution StationsElectric Generating Stations (Other than Underground Power houses)Enamelware FactoriesFilter and Wax Paper ManufacturingFlour Mills	SUB-CATEGORY (A)Aircraft HangersAluminium/Magnesium Powder PlantsBituminised Paper and/or Hessian Cloth/Tar Felt ManufacturingCotton Waste FactoriesCelluloid Goods ManufacturingChemical Manufacturing using raw materials having flash points below 23°C Cigarette Filter ManufacturingCinema Films and T.V. Production StudiosCoal and/or Coke and/or Charcoal Ball and Briquettes ManufacturingCollieriesCotton Seed Cleaning or De-linting Factories.DistilleriesDuplicating/Stencil Paper ManufacturingFire-works Manufacturing.Foam Plastics Manufacturing and/or Converting Plants.Godowns and Warehouses (Storing Combustible/Flammable Goods).Grass, Hay, Fodder and Bhoosa (chaff) Pressing FactoriesIndustrial Gas Manufacturing (Other than Inert/Halogenated Hydrocarbon Gases)Jute Mills and Jute PressesLinoleum FactoriesLPG Bottling Plants (Mini)Man Made Fibres (Acrylic Fibres/yarn Manufacturing)Match Factories

PART 4 FIRE AND LIFE SAFETY

Light Hazard	Moderate Hazard	High Hazard
Fruits and VegetablesDehydrating and Drying FactoriesFruit Products and Condiment FactoriesGlass and Glass Fibre ManufacturingGodowns and Warehouses Storing Non-combustible Goods onlyGreen HousesGold Thread/Gilding FactoriesGum and/or Glue and Gelatine ManufacturingIce, Ice Candy and Ice-cream ManufacturingInk (Excluding Printing Ink) FactoriesMica Products ManufacturingPottery WorksPoultry FarmsSalt Crushing Factories and RefineriesStablesSugar Candy ManufacturingSugar Factories and RefineriesTanneries/Leather Goods ManufacturersUmbrella Assembling FactoriesVermicelli FactoriesWater Treatment/Filtration Plants and Water Pump HousesZinc/Copper Factories	GaragesGarment MakersGhee Factories (Other than Vegetable)Godowns and Warehouses (Other than those Under Light and High Hazard A Categories)Grain and/or Seeds Disintegrating and/or Crushing FactoriesGrease ManufacturingHosiery, Lace, Embroidery and Thread FactoriesIncandescent Gas Mantle ManufacturingIndustrial Gas Manufacturing (Inert/Halogenated hydrocarbon gases)Man-made Yarn/FibreManufacturing (Other than Acrylic Fibres/Yarn Manufacturing)Manure and Fertilizer Works (Blending, Mixing and granulating)Mineral Oil Blending and ProcessingOil and Leather Cloth FactoriesOil Terminals/Depots Other than those Categorised under High Hazard AOpen storage of Flammable Liquids in Drums, Cans, etcOxygen PlantsPaper and Cardboard Mills. without Raw Material YardsPiers, Wharves, Jetties and Dockyards other than those Categorized Under High Hazard APlastic Goods ManufacturingPlywood/Wood Veneering FactoriesPrinting Press Premises	Mattress and Pillow MakingMetal or Tin Printers (where more than 50 Percent of floor area is occupied as Engineering Workshop; this may be taken as ordinary hazard risk)Oil MillsOil Extraction PlantsOil Terminals/Depots handling flammable Liquids having flash point of $23^{\circ}$ C and BelowPaints and Varnish FactoriesPaper and Cardboard Mills having raw material yardsPiers, Wharves and Jetties - Handling Extra Hazardous MaterialsPrinting Ink Manufacturing.Rosin Lamp-Black and Turpentine FactoriesSaw MillsSponge Iron Steel Plants (Gas Based)Surgical Cotton ManufacturingTarpaulin and Canvas Proofing FactoriesTurpentine and Rosin DistilleriesTyre Retreading and Resoling FactoriesSUB-CATEGORY (B)Ammonia and Urea Synthesis PlantsCNG Compressing and Bottling PlantsCoal Based Methane PlantsExplosive FactoriesNOTE — In case of complexes having separate plants having varying degrees of hazard, authority having jurisdiction shall be consulted to decide on level of protection to be provided.
	Pulverising and Crushing MillsRice MillsRope WorksRubber Goods ManufacturingRubber Tyres and Tubes ManufacturingShellac FactoriesSilk FiliaturesSoaps and Glycerine FactoriesSpray PaintingStarch FactoriesTea FactoriesTextile MillsTobacco (Chewing) and Pan-Masala MakingTobacco Grinding and Crushing Tobacco Redrying FactoriesWoollen Mills

NOTE - Any occupancy that is not covered in this annex shall be classified in the most appropriate class which resembles the proposed occupancy.

PART 4 FIRE AND LIFE SAFETY