12 KAR 5:040.
Sampling and weighing.
RELATES TO: KRS
260.775-260.845, 260.992
STATUTORY AUTHORITY:
KRS 260.825(1)
NECESSITY, FUNCTION,
AND CONFORMITY: KRS
260.825(1) authorizes the Director of the Agricultural Experiment Station to
promulgate administrative regulations necessary for the efficient enforcement
of KRS 260.775 to 260.845 regarding milk. This administrative regulation
establishes procedures for milk sampler-weighers for accurately sampling and
weighing milk in farm bulk tanks.
Section 1. Each bulk farm tank is
required to be separately sampled and weighed. If a producer has multiple bulk
farm tanks, samples and weights shall be obtained for each tank and the
information recorded separately in the sampler-weigher’s records.
Section 2. Sampler-weigher Equipment. A
sampler-weigher shall use the following equipment in his sampling and weighing
procedures:
(1) A sample case shall:
(a) Be rigidly constructed and insulated
for safe transportation of the samples;
(b) Have ample space to hold samples;
(c) Maintain a refrigerant that is needed
to cool and maintain the samples at a temperature range of 0.5-4.40
C (33-400 F);
(d) Contain a rack or float to keep the
samples in an upright position and to keep the neck and the top of each sample
container above the surface of the cooling medium; and
(e) Maintain a refrigerant at the level
of the milk in the sample containers.
(2) Sample containers shall be clean,
dry, and sterile. Sample vials shall have leak-proof caps and may be made of
glass or molded, rigid plastic. Approved plastic bags may also be used. The
sample containers shall hold a minimum of one (1) ounce of milk and provide
sufficient air space for processing the sample in the laboratory;
(3) A sample dipper or other sampling
device of sanitary construction. The sampling device shall be stored in a
receptacle containing a sanitizing solution. Both the sampling device and the
sanitizing solution shall be approved by the Milk Safety Branch of the Cabinet
for Health Services;
(4) An accurate dial or digital
thermometer;
(5) A waterproof, indelible marker to
write information on sample containers;
(6) A watch to time the agitation of the
milk in the bulk tank prior to sampling;
(7) An indelible pen to complete the
necessary paperwork; and
(8) An adequate supply of bulk milk
delivery tickets.
Section 3. Weighing Procedures. When
measuring milk volume in farm bulk tanks with a gauge rod inside the tank or an
external scale plate with gauge tube on the outside of the tank, the milk shall
be motionless. A sampler-weigher shall:
(1) Use the following procedures for
measuring milk with a gauge rod on the inside of a bulk tank:
(a) Remove any milk foam from the
measurement area by pushing it aside with the rod;
(b) Remove any milk residue from the rod
by wiping the rod with a clean, single-service towel. If the milk residue
cannot be removed by this method, rinse the rod in warm (not hot) water and
again wipe the rod with a single-service towel;
(c) Lower the gauge rod slowly straight
down until it reaches a point approximately one-quarter (1/4) inch above its
base. Hold the rod in this position for a moment and then ease it down until it
seats firmly and naturally in its base;
(d) Raise the gauge rod and immediately
read it in a well-lighted area at eye level;
(e) The gauge rod shall be read to the
nearest graduation mark on the rod. If the reading is exactly half-way between
two (2) graduation marks, read to the nearest even mark; and
(f) Repeat the gauge rod reading until
two (2) readings are in agreement and record the reading.
(2) Use the following procedures for
measuring milk with an external scale plate and gauge tube on the outside of a
bulk milk tank:
(a) If milk is in the external scale
plate’s gauge tube, it shall be drained and refilled with cold milk. The tube
shall be clean and dry prior to filling it with milk;
(b) To fill the gauge tube, open the
outlet valve slowly to prevent foaming of milk as it fills the tube;
(c) After the milk from the bottom of the
tank fills the tube, read the highest point of the center of the milk’s
meniscus as the measuring point to compare to the scale plate;
(d) The scale plate shall be read to the
nearest graduation mark. If the reading is exactly half-way between two (2)
graduation marks, read to the nearest even mark; and
(e) Repeat the scale plate and gauge tube
reading until two (2) readings are in agreement and record the reading.
(3) Promptly convert the volume reading
of the bulk milk tank to milk weight using the tank’s conversion chart. The
conversion should be repeated until two (2) conversions are in agreement.
Record the milk weight.
(4) Procedures for weighing farm bulk
milk in tanks that are not equipped with a gauge shall be approved by the
director.
Section 4. Sampler-weigher Records. A
sampler-weigher shall prepare and account for records pertaining to milk he
samples and weighs.
(1) Sampler-weigher records shall
include;
(a) Bulk milk delivery tickets;
(b) Producer barn charts;
(c) Information recorded on sample containers;
and
(d) Any other record relating to bulk
milk sampling and weighing activities.
(2) All records relating to
sampler-weigher’s daily activities shall be legible and written in indelible
ink. Changes or corrections to records shall be made by drawing a single line
through the entry and writing the correction nearby. Any changes or corrections
shall be dated and initialed.
(3) Bulk milk delivery tickets shall
accompany all loads of milk to milk-receiving stations, transfer stations, and
processors and shall include the following information:
(a) Identification of the handler;
(b) Identification of the milk-receiving
station, transfer station, or processor;
(c) Date of collection;
(d) Producer identification (and tank
identification if the producer has multiple tanks);
(e) Time of pickup (including a.m. or
p.m.);
(f) Temperature of the milk;
(g) Milk volumetric reading;
(h) Converted milk weight;
(i) Any comments related to unusual
circumstances; and
(j) Sampler-weigher’s signature.
(4) A sampler-weigher shall record the
following information on producer barn charts for each tank sampled and
weighed:
(a) Date;
(b) Time (including a.m. or p.m.);
(c) Milk temperature;
(d) Milk volumetric reading;
(e) Converted milk weight; and
(f) Sampler-weigher’s signature or
initials.
(5) If more than one (1) sampler-weigher
samples and weighs producers’ milk for one (1) truckload, each sampler-weigher
shall sign the bulk milk delivery ticket, regardless of who delivers the load
to the milk-receiving station, transfer station, or processor.
Section 5. Sampling Procedures. A
sampler-weigher shall use the following procedures to obtain a representative
sample from a producer’s standard farm bulk tank:
(1) Each sample container shall be
permanently marked with waterproof, indelible ink and shall be identified with
the following information:
(a) Producer identification (and tank
identification if the producer has multiple tanks);
(b) Date;
(c) Time (including a.m. or p.m.);
(d) Milk temperature; and
(e) Sampler-weigher’s initials.
(2) Milk in the bulk tank shall be
agitated sufficiently to provide a homogenous blend and to obtain a
representative sample. A minimum of five (5) minutes of agitation time is
required for tanks with less than a 1000 gallon capacity. Tanks with a 1000
gallon capacity or larger shall be agitated a minimum of ten (10) minutes;
(3) To eliminate moisture and sanitizing
solutions, the sampling device shall be rinsed with milk at least twice prior
to taking samples;
(4) The milk shall be transferred from
the sampling device to the sterile sample container away from the opening of
the farm bulk tank. The container shall be filled to approximately
three-fourths (3/4) full or to the container’s "fill line." Enough
air space shall be left in the container to allow the sample to be adequately
mixed at the laboratory. After the milk has been transferred to the sample
container, the container shall be tightly sealed and immediately placed in the
sample case with appropriate refrigerant;
(5) At the time of sampling the first
bulk milk tank on the sampler-weigher’s route, an additional sample shall be
collected for temperature determination. This sample’s container shall be
identified with the information outlined in subsection (1) of this section and
with adequate information to identify the sample as the temperature control;
(6) Any additional or special samples
obtained on the sampler-weigher’s route shall be clearly and specifically
identified with waterproof, indelible markings stating the purpose of the
sample; and
(7) Sampling procedures for nonstandard
or sealed farm bulk milk tanks shall be approved by the director.
(8) Milk samples shall be under a
sampler-weigher’s immediate care at all times until the samples are delivered to
the milk-receiving station, transfer station, or processor.
Section 6. Load Sample. A sampler-weigher
shall obtain a load sample from the tank on his truck immediately after the
last producer’s milk is pumped into the truck’s tank.
(1) The load sample shall be taken from
the porthole at the top of the tank on the truck using a sanitized sampling
device. Care shall be taken to prevent any foreign material from entering the
porthole. The load-sample container shall be identified with the following information:
(a) Adequate information to identify the
sample as the load-sample;
(b) Date;
(c) Time (including a.m. or p.m.);
(d) Sampler-weigher’s initials; and
(e) The milk truck’s assigned tanker
number.
(2) The load sample is to be used for
comparisons of the load sample and individual producer’s samples for the
purpose of grading and evaluation of the sampler-weigher’s competency in
sampling; and
(3) The load sample is to be taken by all
bulk sampler-weighers in addition to, not in lieu of, any other load samples
required by the milk handler, transfer station, receiving station, or
processor.
Section 7. Sample Set. A sample for each
producer bulk milk tank, a temperature control sample, and a load sample shall
accompany each load of milk to its final receiving station, transfer station,
or processor. A sampler-weigher may need to obtain multiple samples for his
bulk milk route to meet this requirement.
Section 8. Milk Sample Transfer
Procedures. To expedite the transport of samples to the appropriate laboratory,
a sampler-weigher shall follow these procedures:
(1) For bulk milk deliveries to locations
where producers’ milk samples are routinely transported from the receiving
station, transfer station, or processor to the appropriate laboratory; a sampler-weigher
shall properly place his samples in the location’s sample storage refrigerator
or refrigerated sample storage case after the bulk load of milk has been
determined to be acceptable; or
(2) For bulk delivery when producer’s
milk samples are not routinely transported from the receiving station, transfer
station, or processor to the appropriate laboratory, a sampler-weigher shall
follow written sample transfer procedures established by the licensed handler(s)
who issues payments to producers on the sampler-weigher’s route(s). Written
sample transfer procedures shall be approved by the director. (AES-CL 13; 1 Ky.R. 1234; eff. 7-2-75; Am. 11
Ky.R. 615; eff. 11-13-84; 15 Ky.R. 1122; eff. 11-23-88; 27 Ky.R. 1854; eff.
3-19-2001.)
