Technical Information

THE FERTILISER REGULATIONS AND LIME

NAME, MEANING AND REQUIRED DECLARATIONS OF SOME QUARRY PRODUCED LIMING MATERIALS TO COMPLY WITH THE CURRENT FERTILISER REGULATIONS

Name of material	Meaning	Declarations (see Note below)
Ground limestone	Sedimentary rock consisting largely of calcium carbonate and 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 Any amount of material as a percentage by weight that will pass through a 150 micron sieve
Screened limestone	Sedimentary rock consisting largely of calcium carbonate and 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 through a 150 micron sieve	Neutralising value Any amount of material as a percentage by weight that will pass through a 150 micron sieve
Limestone dust
Coarse screened limestone	Sedimentary rock consisting largely of calcium carbonate and 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
Coarse limestone dust
Magnesian ground limestone	Sedimentary rock consisting largely of calcium and magnesium carbonates and 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
Magnesian screened limestone	Sedimentary rock consisting largely of calcium and magnesium carbonates and 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 through a 150 micron sieve	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve.
Course magnesian screened limestone	Sedimentary rock consisting largely of calcium and magnesium carbonates and 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%	Neutralising value Amount of material as a percentage by weight that will pass through a 150 micron sieve.
Course magnesian screened limestone dust
Chalk	Cretaceous limestone	Neutralising value
Ground chalk	Cretaceous limestone of which 98% will pass through a sieve of 6.3 mm	Neutralising value
Screened chalk	Cretaceous limestone of which 98% will pass through a sieve of 45 mm	Neutralising value
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
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
Burnt lime	Commercial calcium oxide containing not more than 27% magnesium as MgO	Neutralising value
Magnesian ground burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium as MgO and of which 100% will pass through a sieve of 6.3mm	Neutralising value
Magnesian kibbled burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium as MgO and of which 100% will pass through a sieve of 45mm	Neutralising value
Magnesian burnt lime	Commercial oxide obtained from magnesian limestone containing more than 27% magnesium as MgO	Neutralising value
Hydrated lime	Product obtained obtained by slaking burnt lime or magnesian burnt lime of which not less than 95% will pass through a 150 micron sieve	Neutralising value
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 150 micron sieve

Note: The limits of variation (absolute value in percentage by weight) shall be 5% of the amount stated for all Declarations.

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