South Carolina Code of Regulations
Chapter 27 - CLEMSON UNIVERSITY STATE LIVESTOCK-POULTRY HEALTH COMMISSION
Article 13 - FERTILIZER BOARD OF CONTROL
Section 27-180 - Minimum Screening, Calcium Carbonate Equivalent and Landplaster Standards
Current through Register Vol. 48, No. 3, March 22, 2024
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.
