The Fertilisers Regulations 1991

SECTION A: STRAIGHT FERTILISERS

Group	Name of Material	Meaning	Declarations	Limits of variation (absolute value in percentage by weight, except where otherwise specified)
(1)	(2)	(3)	(4)	(5)
* This is only an indication of how the material should be named and accordingly this form of words should not be used in the statutory statement.
1(a)	Ammonium nitrate	Chemically obtained product containing ammonium nitrate as its essential ingredient, and possibly fillers such as ground limestone, calcium sulphate, ground dolomite, magnesium sulphate and kieserite. The nitrogen (N) content must be not less than 20%, and the nitric nigrogen and ammoniacal nigrogen fractions should each account for about half the nitrogen present. If the product is designated as an EEC fertiliser and contains more than 28% by weight of nigrogen (N) it shall have the following additional characteristics (all the percentages specified being by weight): (i) It shall not contain any inorganic additive or inert substance other than those named above which might increase the product’s sensitivity to heat or its tendency to detonate. Heavy metals must not be added deliberately, and any traces which are incidental to the production process must not, by their presentce, increase the product’s sensitivity to heat or its tendency to detonate. (ii) The oil retention of the product, which must first have undergone two thermal cycles of a temperature ranging from 25°C to 50°C, must not exceed 4%. (iii) The percnetage of combustible material, measured as carbon, must not in the case of a product containing 31.5% or more of nitrogen exceed 0.2%, and must not in te case of a product containing between 28% and 31.5% of nitrogen exceed 0.4%. (iv) A solution of 10 grams of the product in 100 millilitres of water must have a pH of at last 4.5. (v) Not more than 5% of the product must be capable of passing through a 1 millimetre mesh sieve, and not more than 3% through a 0.5 millimetre mesh sieve. (vi) The chlorine content must not exceed 0.01% (vii) The copper content shall not exceed 10 mg/kg.	Amount of total nitrogen Amount of nitric nitrogen Amount of ammoniacal nitrogen	0.8 (for declarations up to and including 32%N) 0.6 (for declarations exceeding 32%N) As set out in paragraph 7(a) of this Schedule
	Calcium ammonium nitrate	Chemically obtained product containing ammonium nitrate as its essential ingredient. The nigrogen (N) content must be not less than 20%, and the nitric nigrogen and ammoniacal nitrogen fractions should each account for about half the nigrogen present. The product may contain, in addition to ammonium nitrate, only calcium carbonate (limestone) and/or magnesium carbonate and calcium carbonate (dolomite). The minimum content of these carbonates must be 20% and their purity level not less than 90%.	Amount of total nitrogen Amount of nitric nitrogen Amount of ammoniacal nitrogen	0.8 As set out in paragraph 7(a) of this Schedule
	Ammonium sulphate-nitrate	Chemically obtained product with ammonium nitrate and ammonium sulphate as essential ingredients, and containing not less than 25% ammoniacal and nitric nitrogen (N) with a minimum nitric nitrogen content of 5%.	Amount of total nitrogen Amount of nitric nitrogen Amount of ammoniacal nitrogen	0.8 As set out in paragraph 7(a) of this Schedule
	Calcium cyanamide	Chemically obtained product with calcium cyanamide as its essential ingredient, calcium oxide and possibly small quantities of ammonium salts and urea, and containing not less than 18% total nitrogen (N), at least 75% of the declared nitrogen being bound in the form of cyanamide.	Amount of total nitrogen	1.0
	Calcium magnesium nitrate Nitrate of lime and magnesium	Chemically obtained product with calcium nitrate and magnesium nitrate as essential ingredients, containing not less than 13% nitric nitrogen (N), and not less than 5% magnesium, expressed as MgO, in the form of water-soluble salts.	Amount of nitric nitrogen Amount of magnesium oxide soluble in water	0.4 0.9
	Calcium nitrate Nitrate of lime	Chemically obtained product containing calcium nitrate as its essential ingredient and possibly ammonium nitrate, and containing not less than 15% total nitrogen (N), with a maximum ammoniacal nitrogen content of 1.5%	Amount of total nitrogen Optional declarations Amount of nitric nitrogen Amount of ammoniacal nitrogen	0.4 As set out in paragraph 7(a) of this Schedule
	Chile nitrate Magnesium ammonium nitrate	Product prepared from caliche, with sodium nitrate as its essential ingredient, and containing at least 15% nitric nitrogen (N). Chemically obtained product with ammonium nitrate and magnesium compound salts (dolomite magnesium carbonate and/or magnesium sulphate) as essential ingredients and containing not less than 19% ammoniacal and nitric nitrogen (N) (with a minimum nitric nitrogen content of 6%) and not less than 5% magnesium expressed as total MgO.	Amount of nitric nitrogen Amount of total nitrogen Amount of ammoniacal nitrogen Amount of nitric nitrogen Amount of total magnesium oxide Optional declarations Amount of magnesium oxide soluble in water	0.4 0.8 As set out in paragraph 7(a) of this Schedule 0.9 0.9
	Magnesium sulphonitrate	Chemically obtained product with ammonium nitrate, ammonium sulphate and magnesium sulphate as essential ingredients, and containing not less than 19% ammoniacal and nitric nitrogen (N), with a minimum nitric nitrogen content of 6%, and not less than 5% magnesium expressed as MgO in the form of water-soluble salts.	Amount of total nitrogen Amount of ammoniacal nitrogen Amount of nitric nitrogen Amount of magnesium oxide soluble in water	0.8 As set out in paragraph 7(a) of this Schedule 0.9
	Nitrogenous calcium cyanamide	Chemically obtained product with calcium cyanamide as its essential ingredient, calcium oxide and possibly small quantities of ammonium salts and urea plus added nitrate, and containing not less than 18% total nitrogen (N), at least 75% of the declared non-nitric nitrogen being bound in the form of cyanamide. The nitric nitrogen content must be not less than 1% and not greater than 3%.	Amount of total nitrogen Amount of nitric nitrogen	1.0 As set out in paragraph 7(a) of this Schedule
	Sodium nitrate Nitrate of soda	Chemically obtained product with sodium nitrate as its essential ingredient and containing not less than 15% nitric nitrogen (N).	Amount of nitric nitrogen	0.4
	Sulphate of ammonia	Chemically obtained product with ammonium sulphate as its essential ingredient, and containing not less than 20% ammoniacal nigrogen (N).	Amount of ammoniacal nitrogen	0.3
	Urea	Chemically obtained product with carbonyl diamide (carbamide) at its essential ingredient, and containing not less than 44% total ureic nigrogen (N) (including biuret), with a maximum biuret content of 1.2%	Amount of ureic nitrogen	0.4
1(b)	Straight nitrogenous fertilisers names in accordance with Regulation 4(3)*	Any straight nitrogenous fertiliser not otherwise specified in this table.	Amount of total nitrogen	0.8
1(c)	Nitrogenous fertiliser. In addition the source materials shall be indicated in parentheses in descending order of nutrient contribution	Product obtained by mixing or blending two or more of the fertilisers listed in Groups 1(a), 1(b) and 4(a) of section A of this table.	Amount of total nitrogen	0.5 (for declarations up to and including 10% N). 0.8 (for delcarations exceeding 10% N and up to and including 15% N) 1.1 (for declarations exceeding 15% N)
			Amount of ureic nitrogen save that a declaration of 10% or less need not be made	As set out in paragraph 7(b) of this Schedule
2(a)	Aluminium–calcium phosphate	Product obtained in amorphous form by heat treatement and grinding, with aluminium and calcium phosphates as essential ingredients, and containing not less than 30% total phosphorus pentoxide (P2O5) (soluble in mineral acids), at least 75% of the declared total phosphorus pentoxide being soluble in alkaline ammonium citrate (Joulie). Not less than 90% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 98% through a sieve with a mesh of 0.630 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in alkaline ammonium citrate	0.8 0.8
	Basic slag Thomas phosphates Thomas slag	Product obtained in iron-smelting by treatment of the phosphorus melts and with calcium silicophosphates as essential ingredients, containing not less than 12% total phosphorus pentoxide (P2O5) (soluble in mineral acids) at least 75&:percnt; of the declared total phosphorus pentoxide being soluble in 2% citric acid. Not less than 75% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 96% through a sieve with a mesh of 0.630 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% citric acid	1.0 As set out in paragraph 7(a) of this Schedule No limits of variation are permitted when the declaration is expressed as a range of 2% by weight
	Calcined phosphate	Product obtained by heat treatment of ground rock phosphate with alkaline compounds and silicic acid, with alkaline calcium phosphate and calcium silicate as essential ingredients, and containing not less than 25% phosphorus pentoxide (P2O5) soluble in alkaline ammonium citrate (Petermann). Not less than 75% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 96% through a sieve with a mesh of 0.630 mm.	Amount of phosphorus pentoxide soluble in alkaline ammonium citrate	0.8
	Dicalcium phosphate	Product obtained by precipitation of solubilised phosphoric acid from mineral phosphates or bones, with dicalcium phosphate dihydrate as its essential ingredient, and containing not less than 38% phosphorus pentoxide (P2O5) soluble in alkaline ammonium citrate (Petermann). Not less than 90% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 98% through a sieve with a mesh of 0.630 mm.	Amount of phosphorus pentoxide soluble in alkaline ammonium citrate	0.8
	Partially solubilised rock phosphate	Product obtained by partial solubilisation of ground rock phosphate with sulphuric acid or phosphoric acid, with monocalcium phsophate, tricalcium phsophate and calcium sulphate as essential ingredients, and containing not less than 20% total phosphorus pentoxide (P2O5) (soluble in mineral acids), at least 40% of the declared total phosphorus pentoxide being soluble in water. Not less than 90% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 98% through a sieve with a mesh of 0.630 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in water	0.8 0.9
	Soft ground rock phosphate	Product obtained by grinding soft mineral phosphates with tricalcium phosphate and calcium carbonate as essential ingredients and containing not less than 25% total phosphorus pentoxide (P2O5) (soluble in mineral acids), at least 55% of the declared total phosphorus pentoxide being soluble in 2% formic acid. Not less than 90% of the material should be able to pass through a seive with a mesh of 0.063 mm and not less than 99% through a sieve with a mesh of 0.125 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentixide soluble in 2% formic acid Amount of material as a percentage by weight that will pass through a sieve with a mesh of 0.063 mm	0.8 0.8 5.0% of amount stated
	Normal superphosphate	Product obtained by reaction of ground mineral phosphate with sulphuric acid, with monocalcium phosphate as an essential ingredient as well as calcium sulphate, and containing not less than 16% phosphorus pentoxide (P2O5) soluble in neutral ammonium citrate, at least 93% of the declared phosphorus pentoxide soluble in neutral ammonium citrate being soluble in water.	Amount of phosphorus pentoxide soluble in neutral ammonium citrate Amount of phosphorus pentoxide soluble in water	0.8 0.9
	Concentrated superphosphate	Product obtained by reaction of ground mineral phosphate with sulphuric acid and phosphoric acid, with monocalcium phosphate as an essential ingredient as well as calcium sulphate, and containing not less than 25% phosphorus pentoxide (P2O5) soluble in neutral ammonium citrate, at least 93% of the declared phosphorus pentoxide soluble in neutral ammonium citate being soluble in water.	Amount of phosphorus pentoxide soluble in neutral ammonium citrate Amount of phosphorus pentoxide soluble in water	0.8 0.9
	Triple superphosphate	Product obtained by reaction of ground mineral phosphate with phosphoric acid, with monocalcium phosphate as its essential ingredient, and containing not less than 38% phosphorus pentoxide (P2OP5) soluble in neutral ammonium citrate, at least 93% of the declared phosphorus pentoxide soluble in neutral ammonium citrate being soluble in water.	Amount of phosphorus pentoxide soluble in neutral ammonium citrate Amount of phosphorus pentoxide soluble in water	0.8 1.3
2(b)	Phosphatic neutral filter cake	Product obtained in detergent manufacture by treatment of phsophate rock with sulphuric acid and extraction of the soluble phosphates from the resulting precipitate, and containing not less than 20% total phosphorus pentoxide (P2O5) (soluble in mineral acids).	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% citric acid	1.0 1.0
	Phosphated slag	Product obtained by blending low grade basic slag and phosphate rock and containing not less than 16% total phosphorus pentoxide (P2O5) (soluble in mineral acids).	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% formic acid	0.8 0.8
	Basic slag medium concentration	Product obtained in iron smelting by treatment of phosphorus melts with calcium silicophosphates as essential ingredients and containing not less than 5% total phosphorus pentoxide (P2O5) (soluble in mineral acids), at least 75% of the declared total phosphorus pentoxide being soluble in 2% citric acid. Not less than 75% of the material should be able to pass through a sieve with a mesh of 0.160 mm and not less than 96;% through a sieve with a mesh of 0.630 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% formic acid	0.1 0.8 No limits of variation are permitted with the declaration is expressed as a range of 2% by weight
	Granular basic slag	Product obtained in iron smelting by treatment of phosphorus melts, with calcium silicophosphates as essential ingredients, and containing not less than 5% total phosphorus pentoxide (P2O5) (soluble in mineral acids), at least 75% of the declared total phosphorus pentoxide being soluble in 2% citric acid after the sample has been ground to pass through a sieve with a mesh of 0.160 mm. Not less than 70% of the material should be able to pass through a sieve with a mesh of 0.630 mm and not more than 12% through a sieve with a mesh of 0.160 mm.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% formic acid	1.0 0.8 No limits of variation are permitted with the declaration is expressed as a range of 2% by weight
	Rock phosphate	Product not otherwise specified in this table obtained from mineral calcium phosphate deposits, to which no other matter has been added and containing not less than 5% total phosphorus pentoxide (P2O5) (soluble in mineral acids).	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% formic acid Amount of material as a percentage by weight that will pass through a sieve with a mesh of 0.150 mm	0.8 0.8 5% of amount stated
2(c)	Straight phosphatic fertilisers named in accordance with Regulation 4(3)*	Any straight phosphatic fertiliser not otherwise specified in this table.	Amount of total phosphorus pentoxide	0.9
2(d)	Phosphatic fertiliser	Product obtained by mixing or blending two or more of the fertilisers listed in Groups 7(a), 2(b), 2(c) and 4(b) of Section A of this table.	Amount of total phosphorus pentoxide	0.5 (for declarations up to and including 10&[ercnt; P2O5) 0.8 (for declarations exceeding 10% P2O5 and up to and including 15% P2O5 1.1 (for declarations exceeding 15% P2O5
	In addition the source materials shall be indicated in parentheses in descending order of nutrient contribution		Amount of phosphorus pentoxide soluble in 2% formic acid	0.8
3(a)	Enriched Kainit salt	Product obtained from crude potassium salts, enriched by blending with potassium chloride, and containing not less than 18% water-soluble potassium oxide (K2O).	Amount of potassium oxide soluble in water	1.0
	In addition usual trading names may be given		Optional declarations Amount of magnesium oxide soluble in water where this is greater than 5%	0.9
	Kainit	Product obtained from crude potassium salts, and containing not less than 10% water-soluble potassium oxide (K2O), and not less than 5% magnesium oxide (MgO) in the form of water-soluble salts.	Amount of potassium oxide soluble in water	1.5
	In addition usual trading names may be given		Amount of magnesium oxide soluble in water	0.9
	Muriate of potash In addition usual trading names may be given	Product obtained from crude potassium salts with potassium chloride as its essential ingredient, and containing not less than 37% water-soluble potassium oxide (K2O).	Amount of potassium oxide soluble in water	1.0 (for declarations up to and including 55% K2O) 0.5 (for declarations exceeding 55% K2O)
	Potassium chloride containing magnesium salt	Product obtained from crude potassium salts with added magnesium salts, with potassium chloride and magnesium salts as essential ingredients, and containing not less than 37% water-soluble potassium oxide (K2O) and not less than 5% magnesium oxide (MgO) in the form of water-soluble salts.	Amount of potassium oxide soluble in water Amount of magnesium oxide soluble in water	1.5 0.9
	Sulphate of potash	Product obtained chemically from potassium salts, with potassium sulphate as its essential ingredient, and containing not less than 47% water-soluble potassium oxide (K2O) with a maximum chlorine (Cl) content of 3%	Amount of potassium oxide soluble in water Optional declarations Amount of chlorine where this is lower than 3%	0.5 0.2
	Sulphate of potash containing magnesium salt In addition usual trading names may be given	Product obtained chemically from potassium salts with possible addition of magnesium salts, with potassium sulphate and magnesium sulphate as essential ingredients, and containing not less than 22% water-soluble potassium oxide (K2O) and not less than 8% magnesium oxide (MgO) in the form of water-soluble salts, with a maximum chlorine content of 3%	Amount of potassium oxide soluble in water Amount of magnesium oxide soluble in water Optional declarations Amount of chlorine where this is lower than 3%	1.5 0.9 0.2
	Kieserite with potassium sulphate In addition usual trading names may be given	Product obtained from Kieserite with potassium sulphate added and containing not less than 6% water-soluble potassium oxide (K2O) and not less than 8% magnesium oxide (MgO) in the form of water-soluble salts, where the two together are not less than 20%, with a maximum chlorine content of 3%	Amount of potassium oxide soluble in water Amount of magnesium oxide soluble in water Optional declarations Amount of chlorine where this is lower than 3%	1.5 0.9 0.2
3(b)	Nitrate of potash	Potassium nitrate for fertilising purposes.	Amount of total nitrogen Amount of total potassium oxide	0.5 2.0
	Potassium basic slag	A mixture of basic slag and muriate or sulphate of potash containing not less than 5% total phosphorus pentoxide (P2O5) (soluble in mineral acids) and not less than 5% total potassium oxide (K2O), at least 75% of the declared total phosphorus pentoxide being soluble in 2% citric acid.	Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in 2% citric acid Amount of total potassium oxide Amount of slag as a percentage by weight that will pass through a sieve with a mesh of 0.5 mm	1.0 1.0 1.0 (for declarations up to and including 15% K2O) 2.0 (for declarations exceeding 15%K2O) 5.0% of amount stated
	Potassic nitrate of soda Chilean potash nitrate	A mixture of sodium nitrate and potassium nitrate for fertilising purposes.	Amount of total nitrogen Amount of total potassium oxide	0.5 0.8
3(c)	Straight potassic fertilisers named in accordance with Regulation 4(3)*	Any straight potassic fertiliser not otherwise specified in this table.	Amount of total potassium oxide	1.0
3(d)	Potassic fertiliser	Product obtained by mixing or blending two or more of the fertilisers listed in Groups 3(a), 3(b) and 3(c) of Section A of this table.	Amount of total potassium oxide	0.5 (for declarations up to and including 10% K2O)
	In addition the source material shall be indicated in parentheses in descending order of nutrient contribution			0.8 (for declarations exceeding 10% and up to and including 15% K2O) 1.1 (for declarations exceeding 15% K2O)
4(a)	Castor meal	The residue which is obtained by the removal of oil from commercially pure castor seed.	Amount of total nitrogen	0.5
	Dried blood	Blood which has been dried, to which no other matter has been added, and which is used for fertilising purposes, containing not less than 11% total nigrogen.	Amount of total nitrogen	0.5
	Hoofs	The product obtained by crushing or grinding hoof, to which no other matter has been added, containing not less than 12% total nitrogen.	Amount of total nitrogen	0.5
	Hoofs and horns	A mixture of hoof and horn, crushed or ground, to which no other matter has been added, containing not less than 12% total nitrogen.	Amount of total nitrogen	0.5
	Horns	The product obtained by crushing or grinding horn, to whch no other matter has been added, containing not less than 12% total nitrogen.	Amount of total nitrogen	0.5
	Oilseed fertiliser	Product obtained by the removal of oil from seeds not otherwise specified in this table (excluding mowrah meal and used for fertilising purposes.	Amount of total nitrogen	0.5
4(b)	Rape meal	The residue which is obtained by the removal of oil from commercially pure rape seed.	Amount of total nitrogen	0.5
	Precipitated bone phosphate Dicalcium bone phosphate	An insoluble calcium phosphate prepared by treating commercially pure bone with acid and precipitation of phosphate from the solution.	Amount of phosphorus pentoxide soluble in citric acid	1.0
4(c)	Bone meal	Commercially pure bone, raw or degreased, which has been ground or crushed, of which not less than 90% will pass through a sieve of 6.7 mm square apertures.	Amount of total nitrogen Amount of total phosphorus pentoxide	0.5 1.5
	Fish guano	Product obtained by drying and grinding or otherwise treating fish or fish waste, to which no other matter has been added.	Amount of total nitrogen	0.5
	Fish manure		Amount of total phosphorus pentoxide	1.0
4(b)	Meat and bone meal Meat meal Meat and bone tankage Carcase meal	The product of drying and grinding or otherwise treating bone, flesh, fibre and other slaughterhouse residues, to which no other matter has been added.	Amount of total nitrogen Amount of total phosphorus pentoxide	0.5 1.0
	Raw guano	The excrement and remains of any birds, except poultry, containing both nitrogen and phosphorus, prepared for use by screening where necessary, to which no addition has been made.	Amount of total nitrogen	20.0% of amount stated (with a minimum of 0.25% and a maximum of 1.5)
			Amount of total phosphorus pentoxide	10.0% of amount stated (with a maximum of 2.0)
			Amount of total potassium oxide	20.0% of amount stated
4(c)	Shoddy manure Wool waste Wool combings Wool manure Flock dust	Waste of wool, or of wool mixed with fibrous materials such as are associated with wool in the textile industries including cotton and similar non-wool materials, to which no other matter has been added, the fibre content of which contains not less than 50% of wool by weight.	None	None
	Steamed bone flour	Commercially pure bone, degreased and ground or crushed, from which the nitrogen has been partly or wholly removed by steam, of which not less than 75% will pass through a British Standard Test Sieve No. 16.	Amount of total nitrogen Amount of total phosphorus pentoxide	0.5 1.0
	Steamed bone meal	Commercially pure bone, degreased and ground or crushed, from which the nitrogen has been partly or wholly removed by steam, of which not less than 90% will pass through a sieve of 6.7 mm square aperture.	Amount of total nitrogen Amount of total phosphorus pentoxide	0.5 1.0
5(a)	Ground burnt lime	Commercial calcium oxide containing not more than 27% magnesium as MgO and of which 100% will pass through a sieve of 6.3 mm.	Neutralising value	5.0% of amount stated
	Kibbled burnt lime	Commercial calcium oxide containing not more than 27% magnesium as MgO and of which 100% will pass through a sieve of 45 mm.	Neutralising value	5.0% of amount stated
	Burnt lime	Commercial calcium oxide containing not more than 27% magnesium as MgO.	Neutralising value	5.0% of amount stated
	Magnesian ground burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium expressed as MgO and of which 100% will pass through a sieve of 6.3 mm.	Neutralising value	5.0% of amount stated
	Magnesian kibbled burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium expressed as MgO and of which 100% will pass through a sieve of 45 mm.	Neutralising value	5.0% of amount stated
	Magnesian burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium as MgO.	Neutralising value	5.0% of amount stated
	Chalk	Cretaceous limestone.	Neutralising value	5.0% of amount stated
	Ground chalk	Cretaceous limestone of which 98% will pass through a sieve of 6.3 mm.	Neutralising value	5.0% of amount stated
	Screened chalk	Cretaceous limestone of which 98% will pass through a sieve of 45 mm.	Neutralising value	5.0% of amount stated
	Hydrated lime	Product obtained by slaking burnt lime or magnesian burnt lime of which not less than 95% will pass through a 150 micron sieve.	Neutralising value	5.0% of amount stated
	Ground limestone	Sedimentary rock consisting largely of calcium carbonate and containing not more than 15% of magnesium expressed as MgO and of which 100% will pass through a sieve of 5 mm, not less than 95% will pass through a sieve of 3.35 mm and not less than 40% will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Screened limestone Limestone dust	Sedimentary rock consisting largely of calcium carbonate and containing not more than 15% of magnesium expressed as MgO and of which 100% will pass through a sieve of 5 mm, not less than 95% will pass through a sieve of 3.35 mm and not less than 20% will pass throug;h a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Coarse screened limestone Coarse limestone dust	Sedimentary rock consisting largely of calcium carbonate and containing not more than 15% of magnesium expressed as MgO and of which 100% will pass through a sieve of 5 mm, not less than 90% will pass through a sieve of 3.35 mm and not less than 15% will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Magnesian ground limestone	Sedimentary rock consisting largely of calcium and magnesium carbonates and containing not less than 15% of magnesium as MgO and of which 100% will pass through a sieve of 5mm, not less than 95% will pass through a sieve of 3.35 mm and not less than 40 % will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Magnesian screened limestone	Sedimentary rock consisting largely of calcium and magnesium carbonates and containing not less than 15% of magnesium as MgO and of which 100% will pass through a sieve of 5mm, not less than 95% will pass through a sieve of 3.35 mm and not less than 20% will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Coarse magnesian screened limestone Coarse magnesian limestone dust	Sedimentary rock consisting largely of calcium and magnesium carbonates and containing not less than 15% of magnesium as MgO and of which 100% will pass through a sieve of 5mm, not less than 90% will pass through a sieve of 3.35 mm and not less than 15% will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
	Pulverised shells	Pulverised calcareous sea shells of which 100% will pass through a sieve with a mesh of 6.3 mm.	Neutralising value	5.0% of amount stated
	Shell sand	Calcareous sea sand of which 100% will pass through a sieve with a mesh of 6.3 mm.	Neutralising value	5.0% of amount stated
	Mixed lime	A product resulting from mixing two or more forms of liming material specified in this schedule not being materials for which there is no minimum standard laid down in column 3 of this schedule or material produced during the manufacture of commercial burnt lime or hydrated lime.	Neutralising value Amount of material as a percentage by weight that will pass through a sieve with a mesh of 6.3 mm	5.0% of amount stated 5.0% of amount stated
	Furnace slag	The unamended by-product of iron manufacture which has been reduced in size so that 100% will pass through a sieve with a mesh of 5 mm, not less than 95% will pass through a sieve with a mesh of 3.35 mm, and not less than 40% will pass through a 150 micron sieve.	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated
5(b)	Liming material named in accordance with Regulation 4(3)*	Any liming material not otherwise specified in Group 5(a) of Section A of this table and not injurious to plants or soil.	Neutralising value Amount of material as a percentage by weight that will pass through a sieve with a mesh of 5 mm Amount of material as a percentage by weight that will pass through a sieve with a mesh of 3.353 mm Amount of material as a percentage by weight that will pass through a 150 micron sieve	5.0% of amount stated 5.0% of amount stated 5.0% of amount stated 5.0% of amount stated