Dairy Establishment Inspection Manual – Chapter 18
G. Appendices

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Appendix 18 - 1: Testing Apparatus Specifications

1. Test Thermometer

Type:
Mercury-actuated; readily cleanable; plain front enamelled back; length 305 millimetres (12 inches); immersion point to be etched on stem; mercury to stand in contraction chamber at 0°C (32°F).
Scale Range:
At least 7°C (12°F) below and 7°C (12°F) above the pasteurization temperature at which the operating thermometer is used, with extensions of scale on either side permitted; protected against damage at 149°C (300°F).
Temperature Represented by Smallest Scale Division:
0.1°C (0.2°F).
Number of degrees per 25 mL (Inch) of Scale:
Not more than 4 degrees Celsius or not more than 6 degrees Fahrenheit.
Accuracy:
Within 0.1°C (0.2°F), plus or minus, throughout specified scale range. The accuracy shall be checked against a thermometer which has been tested by the National Bureau of Standards.
Bulb:
Corning normal or equally suitable thermometric glass.
Case:
Suitable to provide protection during transit and periods when not in use.

2. Digital Test Thermometer

Type:
Hand-held; high accuracy digital thermometer; and battery or AC line powered. Calibration is protected from unauthorized changes.
Range:
−18°C to 149°C (0°F to 300°F); Temperature represented by smallest scale division, 0.01°C or °F and digital display.
Accuracy:
System accuracy shall meet that specified by the manufacturer of the thermometer. The thermometer shall be fit for purpose and its accuracy shall be checked against a thermometer, which has been tested by the National Bureau of Standards. A certificate of calibration shall be maintained with the unit.
Self-Diagnostic Circuitry:
Circuitry shall provide constant monitoring of all sensing, input and conditioning circuits. The diagnostic circuitry should be capable of identifying the probe and its calibration information. Without a correct connection of the probe, the display shall alert the operator and no temperature will be displayed.
Electromagnetic Compatibility:
Shall be documented for these devices for their intended use and available to the Regulatory Agency. Units to be used in the "field" shall have been tested for heavy industrial standards, as specified in the European Electromagnetic Compatibility Directive.
Immersion:
Minimum immersion point shall be marked on the probe. During control tests, the probes shall be immersed to equal depths in a water or oil bath or other suitable media.
Case:
Suitable to provide protection during transit and periods when not in use.

3. General Purpose Thermometer

Type:
Pocket type; mercury-actuated.
Magnification of Mercury Column:
To apparent width of not less than 1.6 millimetres (0.0625 of an inch).
Scale Range:
C (30°F) to 100°C (212°F), with extension on either side permitted. Protected against damage at 105°C (220°F).
Temperature Represented by Smallest Scale Division:
C (2°F).
Number of Degrees per Inch of Scale:
Not more than 29 degrees Celsius or not more than 52 degrees Fahrenheit.
Accuracy:
Within 1°C (2°F), plus or minus, throughout the specified scale range. Checked periodically against a known accurate thermometer.
Case:
Metal, provided with a fountain pen clip.
Bulb:
Corning normal or equally suitable thermometric glass.

4. Electrical Conductivity Measuring Devices

Type:
Wheatstone bridge, Galvanometer, Milliammeter, manual or automatic.
Conductivity:
Capable of detecting change produced by the addition of 10 ppm of sodium chloride, in water of 100 ppm of hardness.
Electrodes:
Standard.
Automatic Instruments:
Electric clock, time divisions not less than 0.2 of a second.

5. Stopwatch

Type:
Open face, indicating fractional seconds.
Accuracy:
Accurate to 0.2 of a second.
Hands:
Sweep hand (if applicable), one complete turn every 60 seconds or less.
Scale:
Divisions of not over 0.2 of a second.
Crown:
Depression of crown or push button starts, stops and resets to zero.

Appendix 18 - 2: Test Procedures Form

Critical Process Equipment and Controls Tests and Calibrations

Name and Address of the Dairy

Registration # space

Provincial # space

HTST unit # space Date

Dairy Specialist/Technician Name and Address

Example of completed form for Booster Pump Test
Task Requirements Test # Results Date Signature
  • 1.11.04.03
  • 1.14.04.03
    (H&S 2)
    Interwiring
  • Only operates when FCD is energized.
  • Only operates with proper pressure differential.
  • Only operates when FDD is in forward flow.
  • 24
  • 23
  • 14 & 22
Example of completed form for Feed Pump
Task Requirements Test # Results Date Signature
  • 1.14.04.03
  • 1.17.04.03
    (H&S 2)
    Interwiring
  • Only operates when FCD is energized.
  • Only operates with proper pressure differential.
24
Example of completed form for Regeneration
Task Requirements Test # Results Date Signature
  • 1.11.05.01
  • 1.14.05.01
  • 1.17.05.01
    (H&S 2)
    General Conditions
No pinholes in heat transfer plates. 19
  • 1.11.05.03
  • 1.14.05.02
  • 1.17.05.02
    (H&S 2)
    Pressure Differentials
Pressure on raw side must always be lower by 14 Kpa (2 psi) than pasteurized side

Raw side regen. inlet (1) space

Past. side regen. outlet (1) space

Raw side regen. inlet (2) space

Past. side regen. outlet (2) space

Example of completed form for Heating /Cooling Sections
Task Requirements Test # Results Date Signature
  • 1.11.07.01
  • 1.11.07.03
  • 1.14.07.01
  • 1.14.14.01
  • 1.17.07.01
  • 1.17.14.01
    (H&S 2)
    General Conditions
No pinholes in heat transfer plates. 19
  • 1.11.07.02
  • 1.14.14.02
  • 1.17.14.02
    (H&S 3, 2)
    Pressure Differentials
Pressure on medium side must always be lower by 14 Kpa (2 psi) than product side

Medium side inlet (1) space

Product side outlet (1) space

Medium side inlet (2) space

Product side outlet (2) space

Make space

Model space

Serial

Example of completed form for Flow Control Device (FCD)
Task Requirements Test # Results Date Signature
1.11.06.02
(H&S 1)
Set and Sealed
Variable speed device; maximum legal flow rate sealed. Salt test at maximum flow rate. 8 and 9 (Procedure under review)
  • 1.14.06.02
  • 1.17.06.02
    (H&S 1) Set and Sealed
Set at a flow rate to achieve the holding time specified in the scheduled process
  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (H&S 2)
    Fail Safe (Operation) Capability
Only operate when FDD is in safe forward flow or fully diverted position. (HTST and HHST only) 12 or 13
  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (H&S 2)
    Fail Safe (Operation) Capability
Time delay relay if present - not more than 1 sec. (HTST only) Time delay relay space sec.
  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (HS 2)
    Fail Safe (Operation) Capability
Meter Based Timing System: High flow alarm - divert flow occurs when flow rate > than the value at which holding time was measured. 25 High flow alarm set point space
  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (H&S 2)
    Fail Safe (Operation) Capability
Meter Based Timing System: Low flow/signal loss alarm - divert flow occurs upon low flow alarm or signal loss. 26 Low flow alarm set point space
  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (H&S 2)
    Fail Safe (Operation) Capability
Meter Based Timing System: Flow cut-in and cut-out - forward flow occurs only when flow rates < flow alarm set point and > loss of signal alarm set point. 27

Flow cut-in space

Flow cut-out space

  • 1.11.06.03
  • 1.14.06.03
  • 1.17.06.03
    (H&S 2)
    Fail Safe (Operation) Capability
Alarm pen tracks flow pen
Example of completed form for Holding
Task Requirements Test # Results Date Signature
1.11.08.04
(H&S 2)
Holding Verification and Records
Evidence of holding time in both forward and divert flow. Test results converted to all products processed. 8 and 9
(Procedure under review)

Holding time-FWD space

Holding time-DIV space

Flow measurement-water space

Flow measurement-product:

  1. space
  2. space
  3. space
  4. space
  5. space
  6. space

Calculated hold time:

  1. space
  2. space
  3. space
  4. space
  5. space
  6. space
  • 1.14.08.03
  • 1.17.08.03
    (H&S 2)
    Holding Verification and Records
  • Calculation and verification of holding tube length (indirect and direct heating systems)
    • Holding time is determined by calculation method and is specified in the scheduled process.
    • For direct injections systems extra condensate volume from steam added is included in holding tube calculation.
9.1 Procedure under review
Example of completed form for Flow Diversion Device (FDD)
Task Requirements Test # Results Date Signature
  • 1.11.09.01
  • 1.17.09.01
    (H&S 2)
    General Conditions
Valve seats (no leakage) and spring (capable of diverting system at maximum operating pressure) in good condition. (HTST and HHST systems using a dual stem valve assembly)) 10
  • 1.11.09.01
  • 1.17.09.01
    (H&S 2)
    General Conditions
During manual diversion, booster pump stops, frequency pen records diverted flow position, red indicator light comes on and pressure differential is maintained (HTST only) 14
  • 1.11.09.01
  • 1.17.09.01
    (H&S 2)
    General Conditions
Valve stem moves with ease. (HTST) 11
  • 1.11.09.05
  • 1.17.09.04
    (H&S 1)
    Fail Safe Divert
    Capability
Valve response time from forward flow to divert not exceed 1 sec. (HTST and HHST) 15 Valve response time space
  • 1.11.09.05
  • 1.17.09.04
    (H&S 1)
    Fail Safe Divert Capability
Diverts at sub-legal temperature. (HTST only) 6
  • 1.11.09.05
  • 1.17.09.04
    (H&S 1)
    Fail Safe Divert Capability
Diverts with loss of air or power to solenoids.
  • 1.11.09.05
  • 1.17.09.04
    (H&S 1)
    Fail Safe Divert Capability
Interwired with FCD and flow promoters - FCD, stuffing pumps, and accessory homogenizer without open recirculation line, only operating in safe forward flow or fully divert; Booster pump and separator by-pass valves only operating in safe forward flow position. (HTST and HHST) 13
1.11.09.06
(H&S 2)
Time Delay Relays
Flush time between two valve stems - 1 second minimum 16 Valve flush time space
1.11.09.06
(H&S 2)
Time Delay Relays
Inspect delay - FDD diverts; FCD, booster pump, stuffing pump, accessory homogenizer without open recirculation line all stop; separator by-passed; then FDD moves to FWD position. (HTST and HHST) 17
1.11.09.06
(H&S 2)
Time Delay Relays

CIP delay - FDD diverts; FCD, booster pump, stuffing pump, accessory homogenizer without open recirculation line all stop; separator by-passed, then FDD into CIP mode; or

FDD diverts booster pump stops, separator by-passed, 10 minute delay completed; then pumps and FDD into CIP mode. (HTST and HHST)

18
1.11.09.06
(H&S 2)
Time Delay Relays
Magnetic Flow Meter System: Time delay relay - > legal hold (15 seconds for milk). (HTST only) 28

Make space

Model space

Serial

Example of completed form for Indicating Thermometer
Task Requirements Test # Results Date Signature
1.11.10.04
1.12.03.03
1.12.04.03
1.14.10.04
1.17.10.04
(H&S 1)
Calibration/Records
Temperature accuracy (every 6 months) 1

Test T:

1. space

2. space

3. space

Indic. T:

1. space

2. space

3. space

Adjust.:

1. space

2. space

3. space

1.11.10.04
1.12.03.03
1.12.04.03
1.14.10.04
1.17.10.04
(H&S 1)
Calibration/Records
Thermometric response - 4 seconds under specified conditions. (HTST, APPS and HHST only) 2

1. space

2. space

3. space

Make space

Model space

Serial

Example #1a - Completed form for Safety Thermal Limit Recorder (STLR)
Task Requirements Test# Results Date Signature
  • 1.11.11.01
  • 1.14.11.01
    (H&S 3)
    General Conditions
Flow indicating lights operational.
1.11.11.02
(H&S 2)
Diversion Capabilities
Diversion capabilities of all products run. 6

Cut-in (A) space

Cut-out (A)space

Cut-in (B) space

Cut-out (B)space

Cut-in (C) space

Cut-out (C)space

Cut-in (D) space

Cut-out (D)space

  • 1.11.11.03
  • 1.14.11.04
  • 1.17.11.04
    (H&S 1)
    Cut In/Cut Out
  • Legal cut-in/cut-out temperatures set for all products.
  • System only goes into forward flow when the temperature is at or above pasteurization or sterilization temperature as outlined in the scheduled process. Failure of any safe forward flow condition results in the product divert device to immediately go into the divert flow position. (APPS, HHST)
6.1 & 6.2

Cut-in (A) space

Cut-out (A)space

Cut-in (B) space

Cut-out (B)space

  • 1.11.11.04
    (H & S2)
  • 1.12.05.02
  • 1.14.11.03
  • 1.17.11.03
    (H&S 3) Pens
Frequency pen and temperature pens tracking. 6
  • 1.11.11.05
  • 1.12.05.04
  • 1.14.11.03
  • 1.17.11.03
    (H&S 3) Charts
Proper charts. Chart # space
  • 1.11.11.06
  • 1.12.05.05
  • 1.14.11.05
  • 1.17.11.05
    (H&S 2)
    Accuracy
Time accuracy - equal to true elapsed time. 4

Chart Elapsed Time: space

Stopwatch Elapsed Time: space

  • 1.11.11.06
  • 1.12.05.05
  • 1.14.11.05
  • 1.17.11.05
    (H&S 2)
    Accuracy
Temperature accuracy - + 0.5°C (1°F) in specified scale range. 5

Boiling water to pasteurization T° space

Ice to pasteurization T° space

  • 1.11.11.06
  • 1.12.05.05
  • 1.14.11.05
  • 1.17.11.05
    (H&S 2)
    Accuracy
Thermometric response - 5 seconds under specified conditions. (HTST only) 7 Thermometric response space
  • 1.11.11.06
  • 1.12.05.05
  • 1.14.11.05
  • 1.17.11.05
    (H&S 2)
    Accuracy
Recording thermometer check against indicating thermometer - ≤ indicating thermometer. 3

Recording thermo. reading space

Indicator thermo. reading space

Example #1b of completed form for Safety Thermal Limit Recorder (S.T.L.R.)
Task Requirements Test # Results Date Signature
  • 1.14.11.04
  • 1.17.11.04
    (H&S 1)
    Thermal Limit Controller Sequence Logic
  • 1.14.09.04
  • 1.17.09.04
    (H&S 1)
    Fail Safe Divert Capability
  • Product divert device only moves to forward flow when all parts of the system have been properly sterilized with the minimum times and temperatures for sterilization being met (indirect and direct heating systems).
  • System only goes into forward flow when all product contact surfaces from the holding tube to the FDD have been sanitized or sterilized (HHST).
  • System only goes into forward flow when all product contact surfaces from the holding tube to the product divert device have been sterilized (APPS),
  • System only goes into forward flow when all conditions identified in the scheduled process have been met including that the sensors at the FDD and the holding tube have reached the temperature/time for pasteurization/sterilization as per the scheduled process (Indirect Heating HHST).
  • System only goes into forward flow when all the sensors located at the holding tube or other coldest point as determined by the process authority and at the FDD have reached the temperature/time for pasteurization/sterilization as per the scheduled 9 process (Direct Heating HHST).
29
Example of completed form for Heating Section
Task Requirements Test # Results Date Signature
  • 1.14.07.03
  • 1.17.07.03
    (H&S 2)
    Pressure Limit Recorder Controllers
Product divert device only moves to forward flow when the product pressure in the holding tube is at least 69 Kpa (10 psi) above the boiling pressure of the product. 30 Checked/adjusted
  • 1.14.07.03
  • 1.17.07.03
    (H&S 2)
    Pressure Limit Recorder Controllers
Product divert device only moves to forward flow when the product pressure across the injector is at least 69 Kpa (10 psi) 31 Checked/adjusted
Example #1a - Completed form for Pressure Differential Controllers (PDC)/ Gauges
Task Requirements Test # Results Date Signature
  • 1.11.12.03
  • 1.14.12.04
  • 1.17.12.04
    (H&S 2)
    Accuracy
Pressure Differential Controller - proper operation and pressure accuracy (every 6 months) 20

1st check - checked/adjusted

2nd check - checked/adjusted

  • 1.11.12.03
  • 1.14.12.04
  • 1.17.12.04
    (H&S 2)
    Accuracy
Gauges - pressure accuracy 21 Checked/adjusted
Example #1b - Completed form for Pressure Differential Controllers (PDC)/ Gauges
Task Requirements Test # Results Date Signature
  • 1.14.12.01
  • 1.17.12.01
    (H&S 2)
    General Conditions
Pressure Differential Recorder Controller interwired with product divert valve 20.1
Example of completed form for Homogenizer
Task Requirements Test # Results Date Signature
1.11.15.04
(H&S 2)
Interwiring

Homogenizer of lesser capacity than FCD, installed downstream from FCD - interwired with FCD and equipped with a time delay relay of 1 sec.

13
Example of completed form for Separator
Task Requirements Test # Results Date Signature
1.11.16.03
(H&S 2)
Properly Valved Out
Fail safe valve out to by-pass separator whenever FCD is de-energized. 13
Example of completed form for Stuffing Pump
Task Requirements Test # Results Date Signature
  • 1.11.18.02
  • 1.14.117.02
  • 1.17.17.02
    (H&S 2)
    Proper Installation/Operation
Interwired so that the pump stops when FCD not allowed to operating. 13
Example of completed form for Leak Protector Valve
Task Requirements Test # Results Date Signature
1.12.02.02
Inlet/Outlet Valves and Connections
(H&S = 2)
No leakage of milk, milk product or water past the outlet valve seat in any closed position. 32
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