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BS EN 13732:2022 – TC:2023 Edition

BS EN 13732:2022 – TC:2023 Edition

$280.87

Tracked Changes. Food processing machinery. Bulk milk coolers on farms. Requirements for performance, safety and hygiene

Published By Publication Date Number of Pages
BSI 2023 223
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1.1 This document specifies requirements for design, performance, safety and hygiene of refrigerated bulk milk coolers and the related methods of test. NOTE The informative Annex K gives some elements regarding the estimation and calculation of energy consumption. This document deals with all significant hazards, hazardous situations and events relevant to bulk milk coolers on farm, when they are installed, used and maintained as intended by the manufacturer (see informative Annex A). It applies to refrigerated bulk milk tanks with air-cooled condensing units and automatic control intended for installation on farms or at milk collection points. It applies to tanks for two milkings (24 h), four milkings (48 h) and six milkings (72 h), in which the cooling takes place totally (non-pre-cooled milk) or partially (in case of pre-cooled milk) within the tank. It also applies to tanks in combination with a continuous system of milking (e.g. milking with robot). 1.2 This document does not cover: – mobile tanks; – tanks intended to be tilted for drainage; – equipment for delivering the milk to the tank; – equipment for pre-cooling of the milk; – the hazards due to the use of other energy than electrical energy; – pressure aspect of vacuum tanks (tank of which the inner vessel is designed to operate at a pressure below atmospheric pressure); – calibration requirements for the measurement of the milk volume. 1.3 This document is not applicable to bulk milk coolers on farms which are manufactured before the date of its publication as EN.

PDF Catalog

PDF Pages PDF Title
1 30461811
120 A-30399621
121 undefined
129 1 Scope
2 Normative references
131 3 Terms and definitions
136 4 Safety requirements and/or protective measures — Performance
4.1 General
137 4.2 Mechanical hazards
4.2.1 Lids and covers
4.2.1.1 Lids / open tanks
4.2.1.2 Covers / closed tank
4.2.2 Agitators
4.2.3 Refrigerating system
4.2.4 Stability
138 4.3 Electrical hazards
4.4 Thermal hazards and hazards generated by materials and substances used
4.5 Hygiene
4.5.1 Adequate cooling and safe storage of milk
4.5.1.1 Control of the cooling system
4.5.1.2 Cooling and agitation performances
141 4.5.2 Prevention of milk contamination
4.5.2.1 General
142 4.5.2.2 Inner vessel
143 4.5.2.3 Openings and lids in connection with the inner vessel
4.5.2.4 Thermometers
144 4.5.2.5 Agitators
4.5.2.6 Cleaning
4.6 Energy consumption
4.7 Ergonomics
145 4.8 Provisions for maintenance
4.9 Other general requirements for tanks
4.9.1 Temperature tolerance
4.9.2 Inner vessel
4.9.3 Outer shell
4.9.4 Thermal insulation of cooling tank
4.9.5 Supports and feet
146 4.9.6 Milk inlet aperture
4.9.7 Outlet
147 4.9.8 Electrical controls
4.9.8.1 Duty selection
4.9.8.2 Periodic timer
4.9.8.3 Agitation timer
4.9.8.4 Thermometer
148 4.10 Additional requirements for ice bank tanks
4.10.1 Design
4.10.2 Ice bank control
4.11 Noise
149 5 Verification and tests
152 6 Information for use
6.1 General
6.2 Warning signs and signals
153 6.3 Instruction handbook
154 6.4 Instructions check list
6.4.1 Instructions check list for day-to-day operation
155 6.4.2 Instructions check list for milk collection
6.5 Installation and maintenance instructions
156 6.6 Minimum marking
158 Annex A (informative)List of significant hazards
160 Annex B (normative)Noise test code (Grade 2 of accuracy)
B.1 General
B.2 Emission sound pressure level determination
B.3 Sound power level determination
161 B.4 Mounting conditions
B.5 Operating conditions
B.6 Measurement uncertainties
162 B.7 Information to be recorded
B.8 Information to be reported
B.9 Declaration and verification of the noise emission values
164 Annex C (normative)Electrical requirements for bulk milk coolers according toEN 60204-1:2018
C.1 Safety requirements related to electromagnetic phenomena
C.2 Protection against electric shock
C.3 Ambient air temperature
C.4 Supply disconnecting device
C.5 Power circuits
C.6 Overload protection of motors
C.7 Control circuit supply
165 C.8 Emergency stop devices
C.9 Degrees of protection
C.10 Markings of control equipment
166 Annex D (normative)Electrical requirements for bulk milk coolers according to EN 60335-1:2012)
D.1 General
D.2 Normal operation (see EN 60335-1:2012, 3.1.9)
D.3 General conditions for the tests (see EN 60335-1:2012, Clause 5)
D.4 Classification (see EN 60335-1:2012, Clause 6)
D.5 Input and current (see EN 60335-1:2012, Clause 10)
167 D.6 Heating (see EN 60335-1:2012, Clause 11)
D.7 Leakage current and electric strength at operating temperature (see EN 60335-1:2012, Clause 13)
168 D.8 Moisture resistance (see EN 60335-1:2012, Clause 15)
D.9 Abnormal operation (see EN 60335-1:2012, Clause 19)
170 D.10 Stability and mechanical hazards (see EN 60335-1:2012, Clause 20)
D.11 Mechanical strength (see EN 60335-1:2012, Clause 21)
D.12 Supply connection and external flexible cords (see EN 60335-1:2012, Clause 25)
171 D.13 Provision for earthing (see EN 60335-1:2012, Clause 27)
D.14 Creepage distances, clearances and solid insulation (see EN 60335-1:2012, Clause 29)
D.15 Resistance to heat and fire (see EN 60335-1:2012, Clause 30)
172 Annex E (normative)Test for cooling, thermal insulation, mixing tests
E.1 General
E.1.1 Accuracy on measurements
E.1.1.1 Ambient temperature
E.1.1.2 Milk or TW temperature
E.1.1.3 Volume
E.1.1.4 Cooling time
E.1.1.5 Other measurements
E.1.2 Frequency of measurements
E.1.2.1 Temperature measurements
E.1.2.2 Other measurements
E.1.3 Ambient temperature
E.1.3.1 General
173 E.1.3.2 Temperature in front of the condenser
E.1.3.3 Temperature around the tank
E.1.3.4 Location of measuring points
E.1.3.5 Number of measuring points
E.1.4 Air movement
E.1.5 Temperature of the milk or TW
E.1.6 Electricity supply
174 E.2 Performance tests
E.2.1 Milk cooling tests
E.2.1.1 General
175 E.2.1.2 Batch filling / Low volume / first milking test / direct cooling
E.2.1.3 Batch filling / Low volume / first milking test / ice bank
176 E.2.1.4 Batch filling / Milk cooling test / Direct cooling
179 E.2.1.5 Batch filling / Milk cooling test /- Ice bank
181 E.2.1.6 Tank for continuous flow / minimum flow
182 E.2.1.7 Tank for continuous flow / maximum flow
187 E.2.1.8 First milking test at SOT – Direct cooling tanks
188 E.2.1.9 First milking test at SOT – Ice bank tanks
E.2.1.10 Failure of the ice-bank control
189 E.2.2 Thermal insulation test
E.2.2.1 Location of the tank
E.2.3 Milk mixing tests
190 Annex F (normative)Test for cleanability and cleaning performance
F.1 Introduction
F.2 Definitions and steps for the test
191 F.3 Installation of the tank to be tested
F.3.1 Connection and installation of the tank in its reference position
F.3.2 First automatic cleaning cycle
F.3.3 After a complete automatic cleaning cycle
192 F.4 Preparation of soiling milk (solution A)
F.5 Soiling of the tank
F.6 Automatic cleaning of the tank
193 F.7 Tank rest phase
F.8 Visual assessment of internal tank surfaces and equipment
F.9 Taking method for bacteriological examinations
F.9.1 Solutions and equipment used for bacteriological examinations
F.9.1.1 Solutions and equipment used for the rinsing method
194 F.9.1.2 Equipment used for swabbing method
F.9.2 Assessment of the tank outlet
195 F.9.3 Assessment of the internal tank surfaces and equipment
F.9.3.1 General
F.9.3.2 Rinsing method
F.9.3.3 Swabbing method
196 F.10 Visual assessment of internal tank surfaces and equipment
F.11 Bacteriological examination
197 F.12 Chemical examination
198 F.13 Interpretation of results
F.13.1 Chemical evaluation
F.13.2 Bacteriological evaluation
F.13.3 Visual evaluation
199 Annex G (normative)Sampling methods for milk mixing tests
200 Annex H (normative)Equipment and installation for the tests for cleanability and cleaning performance required in Annex F
H.1 Equipment and installation for the examination dealing with the tank outlet (see F.3.1.4 and F.9.2)
H.1.1 Equipment
H.1.2 Installation
201 H.2 Equipment and installation for the examination dealing with the internal tank surfaces and equipment
H.2.1 For spraying method (see F.5.3 and F.9.3.1)
204 H.2.2 For swabbing method (see F.9.3.2)
H.2.2.1 Equipment
H.2.2.2 Installation
206 Annex I (normative)Evaluation of stainless steel equivalence
I.1 General
I.2 Corrosion tests
I.2.1 Pitting corrosion test
208 I.2.2 Intergranular corrosion test
I.2.3 Stress corrosion test
209 Annex J (informative)Example of milk tank service record
211 Annex K (informative)Estimation and measurement of the energy consumption
K.1 General
K.2 Estimation of energy consumption:
212 K.3 Measurement of energy consumption
K.3.1 General
K.3.2 Measurement of energy consumption for Batch filling / Direct cooling tanks (see E.2.1.4)
K.3.2.1 Batch filling / Direct cooling reference test: test n°1 – first milking (see E.2.1.4.2)
K.3.2.2 Batch filling / Direct cooling reference test: test n°2 – last milking (see E.2.1.4.3)
213 K.3.2.3 Energy consumption calculations of Batch filling / Direct cooling reference test: test n°1 and test n°2
K.3.3 Measurement of energy consumption for Batch filling /Ice bank (see E.2.1.5)
K.3.3.1 General
K.3.3.2 Batch filling /Ice bank reference test: test n°1 – First milking (see E.2.1.5.2)
214 K.3.3.3 Batch filling /Ice bank reference test: test n°2: last milking (see E.2.1.5.3)
K.3.3.4 Energy consumption calculations of Batch filling /Ice bank reference test: test n°1 and test n°2 (see E.2.1.5.4)
K.3.4 Measurement of energy consumption for continuous flow Tank
K.3.4.1 Tanks for continuous maximum flow Tank (see E.2.1.7)
215 K.3.4.2 Energy consumption calculations of continuous maximum flow Tank
K.3.5 Classification of energy consumption
216 Annex L (informative)Safe access and rescue
L.1 Manholes and accessibility
L.2 Access techniques
217 L.3 Rescue
218 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered

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BS EN 13732:2022 - TC
$280.87