S.C. Code Regs. § 27-180 - Minimum Screening, Calcium Carbonate Equivalent and Landplaster Standards

All agricultural liming materials shall be classified and labeled in terms of fineness and calcium carbonate equivalent with no less than the following minimum fineness and minimum calcium carbonate equivalent standards. All landplaster offered for sale or distribution shall meet minimum labeled guarantees for calcium and sulfur.

A. Standards for Classifications in Terms of Fineness

1. Pulverized Mesh Screen	Minimum Guaranteed to Pass
20	95%
100	75%
2. Standard Ground Mesh Screen	Minimum Guaranteed to Pass
10	90%
50	50%
100	25%
3. Coarse Ground Mesh Screen	Minimum Guaranteed to Pass
10	90%
50	40%
100	25%

B. Standards for classifications in terms of calcium carbonate equivalent of agricultural liming materials.

Material	Calcium Carbonate Equivalent
Burnt lime	Not less than 140%
Hydrated lime	Not less than 110%
Shells	Not less than 85%
Limestone	Not less than 85%
Limestone (75% neutralizing value)	Not less than 75%
Industrial slag	Not less than 50%

C. Minimum nutrient guarantees for Landplaster The minimum labeled guarantees for Landplaster shall be 16% for Calcium and 13% for Sulfur.

Notes

S.C. Code Regs. § 27-180

Replaced and amended by State Register Volume 39, Issue No. 06, eff. 6/26/2015.