New York Codes, Rules and Regulations › Title 1 - DEPARTMENT OF AGRICULTURE AND MARKETS › Appendices › Appendix 9

Current through Register Vol. 46, No. 28, July 10, 2024
THERMOMETER SPECIFICATIONS
(cf. Part 3)
INDICATING THERMOMETERS LOCATED ON PASTEURIZATION
				PIPELINES
Type.--Mercury-actuated; direct-reading; contained in
				corrosion-resistant case which protects against breakage and permits easy
				observation of column and scale; filling above mercury, nitrogen, or equally
				suitable gas.
Magnification of Mercury Column. --To apparent width of not
				less than 0.0625 of an inch.
Scale. --Shall have a span of not less than 25 Fahrenheit
				degrees (14 Celsius degrees), including the pasteurization temperature plus and
				minus 5° F (3° C); graduated in 0.5° F (0.25° C) divisions with
				not more than 8 Fahrenheit degrees (4 Celsius degrees) per nch of scale;
				protected against damage at 220° F (105° C).
Accuracy.--Within 0.5° F (0.25° C), plus or minus
				throughout specified scale span. (Appendix 10, Test 1)
Stem Fittings.--Pressure-tight seat against inside wall of
				fittings; no threads exposed to product; distance from underside of ferrule to
				top of the sensitive portion of bulb not less than 3 inches.
Thermometric Response.--When the thermometer is at room
				temperature and then is immersed in a well-stirred water bath 19° F
				(11° C) or less above the pasteurization temperature, the time required for
				the reading to increase from water bath temperature minus 19° F (11° C)
				to water bath temperature minus 7° F (4° C) shall not exceed 4 seconds.
				(Appendix 10, Test 6)
Bulb.--Corning normal, or equally suitable thermometric
				glass.
RECORDER/CONTROLLERS FOR CONTINUOUS PASTEURIZERS
Case.--Moistureproof under normal operating conditions in
				pasteurization plants.
Chart Scale.--Shall have a span of not less than 30 Fahrenheit
				degrees (17 Celsius degrees), including the temperature at which diversion is
				set, plus and minus 12° F (7° C), graduated in temperature scale
				divisions of 1° F (0.5° C) spaced not less than 0.0625 of an inch apart
				at the diversion temperature, plus or minus 1° F (0.5° C): Provided,
				That temperature-scale divisions of 1° F (0.5° C) spaced not less than
				0.040 of an inch apart are permitted when the ink line is thin enough to be
				easily distinguished from the printed line, graduated in time scale divisions
				of not more than 15 minutes, having an equivalent 15 minute chord or
				straight-line length of not less than 0.25 of an inch at the diversion
				temperature, plus or minus 1° F (0.5° C).
Temperature Accuracy. --Within 1° F (0.5° C), plus or
				minus, at the temperature at which the controller is set to divert, plus and
				minus 5° F (3° C). (Appendix 10, Test 2)
Power Operated. --All recorder/controllers for continuous
				pasteurization shall be electrically operated.
Pen-Arm Device.--Easily accessible; simple to adjust.
Pen and Chart Paper.--Pen designed to give line not over 0.025
				of an inch wide; easy to maintain.
Temperature Sensing Device.--(Bulb, tube, spring, thermister)
				protected against damage at temperature of 220° F (105° C).
Submerged Stem Fitting.--Pressure-tight seat against inside
				wall of pipe; no threads exposed to products; location from underside of
				ferrule to the sensitive portion of the bulb not less than 3 inches.
Chart Speed. --A circular chart shall make one revolution in
				not more than 12 hours. Two charts shall be used if operations extend beyond 12
				hours in 1 day. Circular charts shall be graduated for a maximum record of 12
				hours. Strip-charts may show a continuous recording over a 24-hour
				period.
Frequency Pen. --The recorder/controller shall be provided with
				an additional pen-arm for recording, on the outer edge of the chart, the record
				of the time at which the flow-control device is in the forward-flow,
				diverted-flow, or stopped position. The chart time line shall correspond with
				the reference arc, and the recording pen shall rest upon the time line matching
				the reference arc.
Controller. --Actuated by same sensor at recorder pen but
				cut-in and cut-out response independent of pen-arm movement.
Controller Adjustment.--Mechanism for adjustment of response
				temperature simple, and so designed that the temperature setting cannot be
				changed or the controller manipulated without detection.
Thermometric Response. --With the recorder/controller bulb at
				room temperature and then immersed in a well stirred water or oil bath at
				7° F (4° C) above the cut-in point, the interval between the moment
				when the recording thermometer reads 12° F (7° C) below the cut-in
				temperature and the moment of power cut-in shall be not more than 5 seconds.
				(Appendix 10, Test 7)
Chart Support Drive.--The rotating chart support drive shall be
				provided with a pin to puncture the chart in a manner to prevent its fraudulent
				rotation.
INDICATING THERMOMETERS USED IN STORAGE TANKS
Scale Range.--Shall have a span not less than 50 Fahrenheit
				degrees (28 Celsius degrees) including normal storage temperatures plus and
				minus 5° F (3° C) with extension of scale on either side permitted;
				graduated in not more than 2° F (1° C) divisions.
Temperature Scale Divisions. --Spaced not lest than 0.0625 of
				an inch apart between 32° F and 55° F (0° C and 13° C).
Accuracy. --Within 2° F (1° C) plus or minus,
				throughout the specified scale range.
Stem Fitting.--Pressure-tight seat or other suitable sanitary
				fittings. No threads exposed.
RECORDING THERMOMETERS USED IN STORAGE TANKS
Case.--Moisture-proof under operating conditions in processing
				plants.
Scale.--Shall have a scale span of not less than 50 Fahrenheit
				degrees (28 Celsius degrees), including normal storage temperature plus and
				minus 5° F (3° C), graduated in not more than 2° F (1° C)
				divisions with not more than 40 Fahrenheit degrees (23 Celsius degrees) per
				inch of scale; graduated in time scale divisions of not more than 1 hour having
				a chord or straight line length of not less than 0.125 of an inch at 40° F
				(5° C). Chart must be capable of recording temperatures up to 180° F
				(83° C). (Span specifications do not apply to extensions beyond 100° F
				(38° C).
Temperature Accuracy. --Within 2° F (15° C) plus or
				minus, between specified range limits.
Pen-Arm Setting Device.--Easily accessible; simple to
				adjust.
Pen and Chart Paper.--Designed to give a line not over 0.025 of
				an inch thick when in proper adjustment; easy to maintain.
Temperature Sensor.--Protected against damage at 212° F
				(100° C).
Stem Fitting.--Pressure-tight seat or other suitable sanitary
				fitting. No threads exposed.
Chart Speed. --The circular chart shall make one revolution in
				not more than 7 days and shall be graduated for a maximum record of 7 days.
				Strip chart shall move not lest than 1 inch per hour and may be used
				continuously for 1 calendar month.
RECORDING THERMOMETERS ON MECHANICAL CLEANING SYSTEMS
Location.--Temperature sensor in the return line downstream
				from processing equipment and all lines included in the cleaning-in-place
				process.
Case.--Moisture-proof under operating conditions.
Scale.--Shall have a range of 60° F to 180° F (16°
				C to 83° C), with extensions of scale on either side permissible; graduated
				in time-scale divisions of not more than 15 minutes. Above 110° F (44°
				C), the chart is to be graduated in divisions of not more than 2F (1C) spaced
				not lest than 0.0625 of an inch apart: Provided, That temperature-scale
				divisions of 2° F (1° C) spaced not lets than 0.040 of an inch apart
				are permitted when the ink line is thin enough to be easily distinguished from
				the printed line.
Temperature Accuracy.--Within 2° F (1° C) plus or
				minus, above 110° F (44° C).
Pen-Arm Setting Device.--Easily accessible; simple to
				adjust.
Pen and Chart Paper.--Designed to mark a line not over 0.025 of
				an inch wide; easy to maintain.
Temperature Sensor.--Protected against damage at 212° F
				(100° C).
Stem Fitting. --Pressure-tight seat against inside wall of
				pipe; no threads exposed to solution.
Chart Speed.--Circular charts shall make one revolution in not
				more than 24 hours. Strip charts shall not move less than 1 inch per hour. More
				than one record of the cleaning operation shall not overlap on the same section
				of the chart for either circular- or strip-type charts.
INDICATING THERMOMETERS USED IN REFRIGERATED ROOMS
Indicating thermometers used in refrigerated rooms where milk,
				milk products and whey are stored shall meet the following
				specifications:
Scale Range.--Shall have a span not less than 50 Fahrenheit
				degrees (28 Celsius degrees) including normal storage temperatures plus and
				minus 5° F (3° C) with extensions of scale on either side permitted,
				graduated in not more than 2° F (1° C) divisions.
Temperature Scale Divisions. --Spaced not less than 0.0625 of
				an inch apart between 32° F and 55° F (0° C and 13° C).
Accuracy. --Within 2° F (1° C) plus or minus,
				throughout the specified scale range.
SPECIFICATIONS FOR RECORDING pH METER FOR USE ON AUTOMATED
				MECHANICAL CLEANING SYSTEMS FOR EVAPORATORS
Location. --pH sensor shall be located in the return line
				down-stream from processing equipment and all lines included in the
				cleaned-in-place circuit.
Case.--Moisture-proof under operating conditions.
Scale.--It shall have a range of pH value from 2 to 12 with
				extensions of scale on either side permissible graduated in time scale
				divisions of not more than 15 minutes. The chart is to be graduated in pH
				divisions of not more than 0.5 pH values and spaced not less than 0.0625 of an
				inch apart.
pH Accuracy.--Within 0.5 plus or minus pH values.
Pen-Arm Setting Device.--Easily accessible; simple to
				adjust.
Pen and Chart Paper.--Designed to mark a line not over 0.025 of
				an inch wide; easy to maintain.
pH Sensor.--Protected against damage at 180° F (83°
				C).
Chart Speed.--Circular charts shall make one revolution in not
				more than 24 hours. Strip charts shall not move slower than 1 inch per hour.
				More than one record of the cleaning operation shall not overlap on the same
				section of the chart for either circular- or strip-type
				charts.