Missouri Code of State Regulations › Title 6 - DEPARTMENT OF HIGHER EDUCATION AND WORKFORCE DEVELOPMENT › Division 250 - University of Missouri › Chapter 10 - Administration of Missouri Agricultural Liming Materials Act › Section 6 CSR 250-10.020 - Agricultural Liming Materials Standards

Current through Register Vol. 49, No. 14, July 15, 2024
PURPOSE: The purpose of this rule is to set forth
				  standards and guidelines as are necessary to provide for the efficient
				  enforcement of the provisions of the Missouri Agricultural Liming Materials
				  Act.
(1) Agricultural liming
				materials and agricultural liming materials mixtures, as defined in paragraphs
				(1)-(4) of section
				266.505, RSMo (1986),
				by virtue of their physical and chemical characteristics, in part, must be
				treated separately under the Missouri Agricultural Liming Materials Law. Each
				delivery shall be guaranteed as to the effective neutralizing material and the
				effective magnesium, as derived by 6 CSR 250-10.020(3)-(5).
(2) All dry agricultural liming materials
				offered for sale shall have a minimum calcium carbonate equivalent of
				sixty-five percent (65%) and shall meet the minimum specifications for fineness
				as set forth in section
				266.505(1),
				RSMo (1986). A permit to sell, and certification of effective neutralizing
				material and certification of effective magnesium, may be withdrawn for
				materials which fail to meet minimum specifications of this section.
(3) The pounds of effective neutralizing
				material (ENM) in one (1) ton of agricultural liming material shall be based on
				the calcium carbonate equivalent (CCE) of the agricultural liming materials as
				delivered for sale and the fineness factor calculated from the percent of
				materials passing a United States standard sieve size number eight (8) and
				remaining on a United States standard sieve size number forty (40), the percent
				of materials passing a United States standard sieve size number forty (40) and
				remaining on a United States standard sieve size number sixty (60) and the
				percent of materials passing a United States standards sieve sixty (60). The
				final result of calculations shall be rounded to the nearest whole number,
				which will be the pounds of effective neutralizing material per ton.
United States Standard Sieve Size No.
						  Ranges
Efficiency Percentages
% Remaining on 8
0%
% Passing 8 and Remaining on 40
25
% Passing 40 and Remaining on 60
60
% Passing 60
100
The fineness factor is calculated to allow for variations in
				  fineness of materials using the following formula:
Fineness Factor= (% of materials passing United States No. 8
				  and remaining on 40 x 0.25)
+ (% of materials passing United States No. 40 and remaining
				  on 60 x 6.060)
+ (% of materials passing United States No. 60 x 1.00)
Calculations to allow for variations in calcium carbonate
				  equivalent and fineness shall be made by using the following formula:
ENM =% CCE/100 x Fineness Factor/100 x 800
(4) The pounds of effective magnesium (E.Mg.)
				in one (1) ton of agricultural liming material which meets the specifications
				of 6 CSR 250-10.020(2) shall be based on the magnesium content of the
				agricultural liming materials delivered for sale and the fineness factor as
				determined in 6 CSR 250-10.020(3). Calculations to allow for variations in
				magnesium content and fineness shall be made using the following formula: E.
				Mg. =% Mg./100 x Fineness Factor/100 x 2000
The final result of calculations shall be rounded to the
				  nearest whole number, which will be the pounds of effective magnesium per
				  ton.
(5) The pounds per ton
				of ENM and the pounds per ton of E.Mg. for agricultural liming materials
				mixtures shall be based on the calcium carbonate equivalent and the magnesium
				content of the agricultural liming material mixture as delivered for sale and
				on the fineness factor of the dry agricultural liming material used in the
				mixture as determined in 6 CSR 250-10.020(3) and (4).
(6) All samples of agricultural liming
				materials taken for analyses shall be taken in accordance with the following
				methods and procedures:
(A) Production or
				Transfer Belt Sampling. With a stream sample, follow the basic procedures
				outlined in 6 CSR 250-10.010(1) but extend the time between passes to at least
				thirty (30) seconds. This procedure may be used at any point where agricultural
				lime is being produced or transferred by belt. The opening of the stream sample
				may be closed to about three quarters inch (3/4") if the opening is the same
				width over its entire length to avoid excessively large samples;
(B) Freshly Built and Active Stockpile
				Sampling. When material is being regularly; added to or withdrawn from a
				stockpile of agricultural liming materials, samples should be taken with the
				"D" tube device. If probing by means of the "D" tube is not possible, follow
				instructions of 6 CSR 250.10.020(6)(D). In all probe sampling, distribute
				sampling locations uniformly on the surface of the areas to be
				represented;
(C) Truck Sampling.
				Trucks may be sampled with the stream sample during loading or with the "D"
				tube after loading following precisely the instructions for sampling bulk
				fertilizer in 6 CSR 250-10.010(1). Generally, trucks should be sampled only to
				represent a load ready for delivery to a known final purchaser and trucks
				merely hauling material to a stockpile should not normally be sampled since
				truck samples may not be used in determining either the production point or
				stockpile certification;
(D)
				Crusted and Temporarily Inactive Stockpile Sampling (Which Cannot be Probed).
1. Several tons (or several truckloads if
				possible) should be pulled down from the working face of the load-out area. The
				"D" tube should then be used to draw ten (10) cores representatively
				distributed over the loosened material. Each subsequent official sample must be
				from newly pulled down materials.
2. If it is not possible or feasible to pull
				down materials, a straight narrow bladed spade (sharpshooter) should be used.
A. Stockpiles of over one thousand (1,000)
				tons. The stockpile should be oriented with regard to compass direction so that
				it may be divided into four (4) identifiable pie-shaped quadrants. Only one (1)
				quadrant should be sampled at a time, sampling the side that will be used for
				loading-out first, if possible, with sampling points located over entire area
				approximately as indicated.
Click to view
				  image
Clear away crusted material with the sharpshooter until a
				  full spade depth of loose, uncaked material can be removed. One (1) or (2) full
				  spades should then be removed.
Then cut a smooth face at a sufficient angle from vertical so
				  that a one inch (1") slice of agricultural lime may be removed intact in the
				  spade. Everything except a one inch by the inch (1" x 1") section from the top
				  to the bottom of the space should be removed. (The top opening of a stream
				  sample turned upside down may be used to cover this central section while the
				  excess at each side is removed.) This one inch by one inch (1" x 1") central
				  core should then be put in plastic bag. This procedure should be repeated for
				  each sampling point until ten (10) cores are composited to make up an official
				  sample. After the crust is removed, it may be possible to probe some of the
				  sampling locations. A combination of ten (10) "D" tube cores and spade cores
				  may be composited together to make up the official sample.
B. Stockpiles of one thousand (1,000) tons or
				less may be sampled as in 6 CSR 250-10.020(6)(D) 2.A., except that sampling
				location should be uniformly distributed over the entire surface of the
				pile.
3. Only one (1)
				sample may be taken from a stockpile on any single day. If a stockpile remains
				inactive for several weeks, all quadrants might be sampled in this manner,
				however, probe sampling should be used in the area of activity at any time a
				stockpile is being used or rebuilt; and
(E) Sampling Fluid Lime Suspensions.
1. Fluid lime suspensions should be sampled,
				whenever possible, immediately after mixing as the product is being loaded from
				the mixing vat to the delivery vehicle. The sample should be caught from the
				delivery line at the delivery vehicle after at least one hundred (100) gallons
				have been loaded and while a substantial quantity remains to be loaded. Use a
				wide mouth polyethylene sampling bottle of at least one (1) pint capacity. It
				may be necessary to reduce product flow momentarily during sampling.
2. If this sampling procedure is not
				possible, fluid lime may be sampled from the mixing vat, delivery vehicle or
				storage after thorough agitation, with a heavily weighted fluid fertilizer
				sampling bottle following procedures for sampling fluid fertilizer suspensions
				described in the
Associations of American Plant Food Control Officials
				Inspector's Manual
cited in 6 CSR
				250-10.010.